Orginalveröffentlichungen

2012

On the measurement of the thermal resistance of vertical-external-cavity surface-emitting lasers: B. Heinen, F. Zhang, M. Sparenberg, B. Kunert, M. Koch, and W. Stolz; IEEE Journal of Quantum Electronics, submitted
Terahertz Parallel-Plate Ladder Waveguide with Highly Confined Guided Modes: M. Ahmadi-Boroujeni, K. Altmann, B. Scherger, C. Jansen, M. Shahabadi, and M. Koch; IEEE Transactions on Microwave Theory and Techniques, submitted
Photoluminescence study of (GaIn)As-based THz antenna materials for 1.55 μm telecom applications: T. Jung, R. Dietz, A. Chernikov, F. Kuik, B. Sartorius, M. Schell, M. Koch, and S. Chatterjee; Appl. Phys. Lett., submitted
Strong carrier-phonon coupling in GaAs1−xBix/GaAs quantum wells: A. Chernikov, V. Bornwasser, M. Koch, S.W. Koch, S. Chatterjee, X. Lu, S.R. Johnson, Dan A. Beaton, T. Tiedje; Semic. Sci. and Technol., submitted
Scaled bistatic radar cross section measurements of aircraft with a fiber-coupled THz time domain spectrometer: R. Gente, C. Jansen, R. Geise, O. Peters, M. Gente, N. Krumbholz, C. Möller, S. Busch, M. Koch; IEEE Terahertz Sci. and Technol., submitted
Terahertz radiation at 0.380 THz and 2.520 THz does not lead to DNA damage in skin cells in vitro: H. Hintzsche, C. Jastrow, B. Heinen, K. Baaske, T. Kleine-Ostmann, M. Schwerdtfeger, M.K. Shakfa, U. Kärst, M. Koch, T. Schrader, H. Stopper; Archives of Toxicology, submitted
106 W continuous wave output power from a vertical-external-cavity surface-emitting laser (VECSEL): B. Heinen, T. L. Wang, M. Sparenberg, A. Weber, B. Kunert, J. Hader, S. W. Koch, J. V. Moloney, M. Koch and W. Stolz; Electronics Letters, 48(9), 516–517 (2012) [DOI]

Electrically Tunable Terahertz Filters: N. Vieweg, N.Born, I. Al Naib, M. Koch; J. Infrared Milli Terahz Waves, in press
Polymeric THz 2D Photonic Crystal Filters Fabricated by Fiber Drawing: M. Stecher, C. Jansen, M. Ahmadi-Boroujeni, R. Lwin, A. Stefani, M. Koch, and G. E. Town; IEEE Terahertz Sci. and Technol., in press
Optically Controlled Terahertz Beam Steering and Imaging: S. Busch, B. Scherger, M. Scheller, and M. Koch; Optics Letters, in press
Ionization of coherent excitons by strong terahertz fields: B. Ewers, N. S. Köster, R. Woscholski, M. Koch, and S. Chatterjee, G. Khitrova and H. M. Gibbs, A. C. Klettke, M. Kira, and S. W. Koch; Phys. Rev. B., 85, 075307 (2012) [DOI]
Time-dynamics of the two-color emission from vertical-external-cavity surface-emitting lasers: A. Chernikov, M. Wichmann, M. K. Shakfa, M. Scheller, J. V. Moloney, S. W. Koch, and M. Koch; Appl. Phys. Lett. 100, 041114 (2012) [DOI]
Phonon-assisted luminescence in polar semiconductors - Fröhlich coupling versus deformation potential scattering: A. Chernikov, V. Bornwasser, M.Koch, S. Chatterjee, C. N. Bötge, T. Feldtmann, M. Kira, S.W. Koch, T. Wassner, S. Lautenschläger, B. K. Meyer, and M. Eickhoff; Phys. Rev. B., 85, 035201 (2012) [DOI]
Versatile Spectrally Shapeable Multi-Mode Terahertz System: M. Scheller, M.Stecher, M.Gerhard, and M. Koch; Appl. Phys. B 106, 81 (2012) [DOI]
Single Sampling Point Detection of Frequency Modulated Terahertz Waves: M. Scheller, T. Kinder, O. Peters, T. Müller-Wirts, M. Koch; J. Infrared Milli Terahz 33, 36 (2012) [DOI]

2011

Carrier dynamics in (ZnMg)O alloy materials: A. Chernikov, C.N. Böttge, T. Feldtmann, S. Chatterjee, M. Koch, M. Kira, and S. W. Koch; Phys. Stat. Sol. C 8, 1129(2011) [DOI]
Plasma-related phonon-sideband emission in semiconductors: A. Chernikov, S. Horst, M. Koch, K. Volz, S. Chatterjee, S. W. Koch, T. Wassner, B. Laumer, and M. Eickhoff; Phys. Stat. Sol. C 8, 1149(2011) [DOI]
A Fast Degrading Odd-Odd Aliphatic Polyester-5,7 Made by Condensation Polymerization for Biomedical Applications: F. Chen, J. M. Nölle, S. Wietzke, M. Reuter, S. Chatterjee, M. Koch, and S. Agarwal; Journal of biomaterials science. Polymer (2011)
Molecular Terahertz Polarizability of PCH5,PCH7 and 5OCB: N. Vieweg, M.K. Shakfa, and M.Koch; J. Infrared Milli Terahz 32, 1367 (2011) [DOI]
Intra-excitonic relaxation dynamics in bulk ZnO: A. Chernikov, M. Koch, B. Laumer, M. Eickhoff, S. W. Koch, and S. Chatterjee; Appl. Phys. Lett. 99, 231910 (2011) [DOI]
Terahertz Spectroscopy on Polymers: A Review of Morphological Studies: S. Wietzke, C. Jansen, M. Reuter, T. Jung, D. Kraft, S. Chatterjee, B.M. Fischer, M. Koch; Journal of Molecular Structure, 1006, 41 (2011) [DOI]
Introducing Terahertz Technology into Plant Biology: A Novel Method to Monitor Changes in Leaf Water Status: B. Breitenstein, M. Scheller, M.K. Shakfa, T. Kinder, T. Müller-Wirts, M. Koch, D. Selmar; Journal of Applied Botany and Food Quality , 84, 158 (2011)
Diffuse Scattering from Rough Surfaces in THz Communication Channels: C. Jansen, S. Priebe, C. Möller, M. Jacob, H. Dierke, M. Koch, T. Kürner; IEEE Terahertz Sci. and Technol., 1, 462 (2011) [URL]
Exciton confinement in homo- and heteroepitaxial ZnO/Zn1−xMgxO quantum wells with x < 0.1: B. Laumer, T.A. Wassner, F. Schuster, M. Stutzmann, J. Schörmann, M. Rohnke, A. Chernikov, V. Bornwasser, M. Koch, S. Chatterjee, and M. Eickhoff; J. Appl. Phys. 110, 093513 (2011) [DOI]
THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions: R.J.B. Dietz, M. Gerhard, D. Stanze, M. Koch, B. Sartorius, and M. Schell; Optics Express 19, 25911 (2011) [DOI]
Terahertz Brewster Lenses: M. Wichmann, B. Scherger, S. Schumann, S. Lippert, M. Scheller, S.F. Busch, C. Jansen, and M. Koch; Optics Express 19, 25151 (2011) [DOI]
Paper terahertz wave plates: B. Scherger, M. Scheller, N. Vieweg, S.T. Cundiff, and M. Koch; Optics Express 19, 24884 (2011) [DOI]
Efficient Terahertz En-face Imaging: S. Katletz, M. Pfleger, H. Pühringer, N. Vieweg, B. Scherger, B. Heinen, M. Koch, and K. Wiesauer; Optics Express 19, 23042 (2011) [DOI]
Luminescence Dynamics in Ga(AsBi): S.Imhof, C. Wagner, A. Thränhardt,A. Chernikov, M. Koch, N.Köster, S. Chatterjee, S. W. Koch, O. Rubel, X. Lu, S.R. Johnson, D.A. Beaton, and T. Tiedje; Appl. Phys. Lett.s 98, 161104 (2011) [DOI]
Characterization of Micro-Powders for the Fabrication of Compression Molded THz Lenses: B. Scherger, S. Wietzke, M. Scheller, N. Vieweg, M. Wichmann, M. Koch and K. Wiesauer; Journal of Infrared, Millimeter and Terahertz Waves, Springer New York, 2011, 32, pp. 943-951 [DOI]
Analyzing Morphology and Thermal History of Polybutylene Terephthalate by THz Time-domain Spectroscopy: S. Wietzke, M. Reuter, N. Nestle, E. Klimov, U. Zadok, B.M. Fischer and M. Koch; Journal of Infrared, Millimeter and Terahertz Waves, Springer New York, 2011, 32, pp. 952-959 [DOI]
OSCAT: Novel Technique for Time-Resolved Experiments Without Moveable Optical Delay Lines: R. Wilk, T. Hochrein, M. Koch, M. Mei and R. Holzwarth; Journal of Infrared, Millimeter and Terahertz Waves, Springer New York, 2010 [DOI]
Terahertz lenses made by compression molding of micropowders: B. Scherger, M. Scheller, C. Jansen, M. Koch and K. Wiesauer; Appl. Opt., OSA, 2011, 50(15), pp. 2256-2262 [DOI]
Terahertz quasi-time-domain spectroscopy imaging: M. Scheller, S.F. Dürrschmidt, M. Stecher and M. Koch; Appl. Opt., OSA, 2011, 50(13), pp. 1884-1888 [DOI]
Sharp Fano resonances in THz metamaterials: R. Singh, I.A.I. Al-Naib, M. Koch and W. Zhang; Opt. Express, OSA, 2011, 19(7), pp. 6312-6319 [DOI]
Polarization and angle independent terahertz metamaterials with high Q-factors: I.A.I. Al-Naib, C. Jansen, N. Born and M. Koch; Applied Physics Letters, AIP, 2011, 98(9), pp. 091107 [DOI]
Heat Management in High-Power Vertical-External-Cavity Surface-Emitting Lasers: A. Chernikov, J. Herrmann, M. Koch, B. Kunert, W. Stolz, S. Chatterjee, S.W. Koch, T.L. Wang, Y. Kaneda, J.M. Yarborough, J. Hader and J.V. Moloney; IEEE J. of Selected Topics in Quant. El., 2011, PP(99) [DOI]
Terahertz spectrometer operation by laser repetition frequency tuning: R. Wilk, T. Hochrein, M. Koch, M. Mei and R. Holzwarth; J. Opt. Soc. Am. B, OSA, 2011, 28(4), pp. 592-595 [DOI]
Variable-focus terahertz lens: B. Scherger, C. Jördens and M. Koch; Opt Express, 2011, 19(5), pp. 4528-4535 [DOI]
Terahertz metasurfaces with high Q-factors: C. Jansen, I.A.I. Al-Naib, N. Born and M. Koch; Appl. Phys. Lett., 2011, 98(5), pp. 051109 [DOI]
BL037: A nematic mixture with high terahertz birefringence: N. Vieweg, M.K. Shakfa and M. Koch; Optics Communications, 2011, 284(7), pp. 1887-1889 [DOI]
Terahertz Spectroscopy on Adhesive Bonds: C. Jansen, S. Wietzke, H. Wang, M. Koch and G. Zhao; Polymer Testing, 2011, 30(1), pp. 150 - 154 [DOI]
THz spectroscopy and imaging - Modern techniques and applications: P. Jepsen, D.G. Cooke and M. Koch; Laser & Photonics Reviews, 2011, 5(1), pp. 124 - 166 [DOI]
Degree of dispersion of polymeric compounds determined with terahertz time-domain spectroscopy: N. Krumbholz, T. Hochrein, N. Vieweg, I. Radovanovic, I. Pupeza, M. Schubert, K. Kretschmer and M. Koch; Polymer Engineering and Science, 2011, 51(1), pp. 109 - 116 [DOI]
Evidence of two disorder scales in GA(AsBi): S.Imhof, A. Thränhard, A. Chernikov, M. Koch, K. Kolata, N.S. Köster, S. Chatterjee, S.W. Koch, X. Lu, S.R. Johnson, D.A. Beaton, T. Tiedje, and O. Rubel; Phys. Stat. Sol. B, 2011, 248851 [DOI]

2010

Versatile spectrally shapeable multi-mode terahertz system: M. Scheller, M. Stecher, M. Gerhard, and M. Koch; Applied Physics B: Lasers and Optics, Springer Berlin/Heidelberg, 2010, pp. 1-4 [DOI]
Terahertz imaging spectroscopy for quality inspection in the food industry: C. Jansen, B. Scherger, C. Jördens, I. A. I. Al-Naib, and M. Koch; Food Engineering and Ingredients, 2010, (special issue), pp. 11-14
Room temperature continuous wave milliwatt terahertz source: M. Scheller, J.M. Yarborough, J.V. Moloney, M. Fallahi, M. Koch and S.W. Koch; Opt. Express, OSA, 2010, 18(26), pp. 27112-27117 [DOI]
Compact diode-laser-based system for continuous-wave and quasi-time-domain terahertz spectroscopy: C. Brenner, M. Hofmann, M. Scheller, M.K. Shakfa, M. Koch, I.C. Mayorga, A. Klehr, G. Erbert and G. Tränkle; Opt. Lett., OSA, 2010, 35(23), pp. 3859-3861 [DOI]
THz Properties of Nematic Liquid Crystals: N. Vieweg, M.K. Shakfa, B. Scherger, M. Mikulics and M. Koch; Journal of Infrared, Millimeter and Terahertz Waves, 2010, 31(11), pp. 1312 - 1320 [DOI]
Evidence of two disorder scales in Ga(AsBi): S. Imhof, A. Thränhardt, A. Chernikov, M. Koch, K. Kolata, N.S. Köster, S. Chatterjee, S.W. Koch, X. Lu, S.R. Johnson, D.A. Beaton, T. Tiedje and O. Rubel; Phys. Stat. Sol. B, 2010, 248(4), pp. 851-854 [DOI]
Terahertz properties of liquid crystals with negative dielectric anisotropy: N. Vieweg and M. Koch; Appl. Opt., OSA, 2010, 49(30), pp. 5764-5767 [DOI]
Influence of the spatial pump distribution on the performance of high power vertical-external-cavity surface-emitting lasers: A. Chernikov, J. Herrmann, M. Scheller, M. Koch, B. Kunert, W. Stolz, S. Chatterjee, S.W. Koch, T.L. Wang, Y. Kaneda, J.M. Yarborough, J. Hader and J.V. Moloney; Applied Physics Letters, 2010, 97(19), pp. 191110 [DOI]
Single Metal Layer CPW Metamaterial Bandpass Filter: C. Jansen I.A.I. Al-Naib and M. Koch; Progress In Electromagnetics Research Letters, 2010, 17, pp. 153 - 161 [DOI]
Highly Miniaturized Single Metal Layer CPW Bandstop Filters Based on Spiral Resonators: I.A.I. Al-Naib and M. Koch; Elect. Lett, 2010, 46(18), pp. 1274 - 1275 [DOI]
Investigation of carrier dynamics in Zn_1-xMg_xO by time-resolved photoluminescence: A. Chernikov, S. Horst, M. Koch, K. Volz, S. Chatterjee, S. Koch, T. Wassner, B. Laumer and M. Eickhoff; Journal of Luminescence, 2010, 130(11), pp. 2256 - 2259 [DOI]
Time-resolved phonon-sideband spectroscopy: A. Chernikov, T. Feldtmann, S. Chatterjee, M. Koch, M. Kira and S.W. Koch; Solid State Communications, 2010, 150(37-38), pp. 1733 - 1736 [DOI]
Coplanar Waveguides Incorporating SRRs or CSRRs: I.A.I. Al-Naib and M. Koch; Progress In Electromagnetics Research B, 2010, 23, pp. 343-355 [DOI]
Hybrid Continuous Wave Terahertz Spectroscopy: M.Scheller, M. Stecher, M. Gerhard and M. Koch; Optics Express, 2010, 18(15), pp. 15887-15892 [DOI]
Thermomorphological study of the terahertz lattice modes in polyvinylidene fluoride and high-density polyethylene: S. Wietzke, C. Jansen, M. Reuter, T. Jung, J. Hehl, D. Kraft, S. Chatterjee, A. Greiner and M. Koch; Applied Physics Letters, 2010, 97(2)[DOI]
Asymmetric planar terahertz metamaterials: R. Singh, I.A.I. Al-Naib, M. Koch and W. Zhang; Optics Express, 2010, 18(12), pp. 13044-13050 [DOI]
Terahertz form birefringence: M. Scheller, C. Jördens and M. Koch; Optics Express, 2010, 18(10), pp. 10137-10142 [DOI]
Terahertz imaging: applications and perspectives: C. Jansen, S. Wietzke, O. Peters, M. Scheller, N. Vieweg, M. Salhi, N. Krumbholz, C. Jördens, T. Hochrein and M. Koch; Applied Optics, 2010, 49(19), pp. E48-E57 [DOI]
Multi-Frequency Continuous Wave Terahertz Spectroscopy for Absolute Thickness Determination: M. Scheller, K. Baaske and M. Koch; Appl. Phys. Lett., 2010, 96(15), pp. 151112 [DOI]
Clustering effects in Ga(AsBi): S.R. Johnson, D.A. Beaton, T. Tiedje, O. Rubel, S. Imhof, A. Thränhardt, A. Chernikov, M. Koch, N.S. Köster, K. Kolata, S. Chatterjee, S.W. Koch and X. Lu; Applied Physics Letters, 2010, 96(13), pp. 131115 [DOI]
Mechanically flexible polymeric compound one-dimensional photonic crystals for terahertz frequencies: C. Jansen, S. Wietzke, V. Astley, D.M. Mittleman and M. Koch; Applied Physics Letters, 2010, 96(11), pp. 111108 [DOI]
Investigation of the water absorption in polyamide and wood plastic composite by terahertz time-domain spectroscopy: C. Jördens, S. Wietzke, M. Scheller and M. Koch; Polymer Testing, 2010, 29(2), pp. 209 - 215 [DOI]
Molecular properties of liquid crystals in the terahertz frequency range: N. Vieweg, C. Jansen, M.K. Shakfa, M. Scheller, N. Krumbholz, R. Wilk, M. Mikulics and M. Koch; Optics Express, 2010, 18(6), pp. 6097 [DOI]
Optical sampling by laser cavity tuning: T. Hochrein, R. Wilk, M. Mei, R. Holzwarth, N. Krumbholz and M. Koch; Optics Express, 2010, 18(2), pp. 1613 [DOI]
Terahertz spectroscopy to study the orientation of glass fibres in reinforced plastics: C. Jördens, M. Scheller, S. Wietzke, D. Romeike, C. Jansen, T. Zentgraf, K. Wiesauer, V. Reisecker and M. Koch; Composites Science and Technology, 2010, 70(3), pp. 472 - 477 [DOI]
Confocal THz Laser Microscope: M.A. Salhi, I. Pupeza and M. Koch; Journal of Infrared, Millimeter and Terahertz Waves, 2010, 31(3), pp. 358 - 366 [DOI]
Dielectric Fibres for Low-Loss Transmission of Millimetre Waves and its Application in Couplers and Splitters: C. Jördens, K. Chee, I.A.I. Al-Naib, I. Pupeza, S. Peik, G. Wenke and M. Koch; Journal of Infrared, Millimeter and Terahertz Waves, Springer New York, 2010, 31(2), pp. 214-220 [DOI]

2009

Terahertz time-domain spectroscopy as a tool to monitor the glass transition in polymers: S. Wietzke, C. Jansen, T. Jung, M. Reuter, B. Baudrit, M. Bastian, S. Chatterjee and M. Koch; Optics Express, 2009, 17(21), pp. 19006-19014 [DOI]
Terahertz quasi time domain spectroscopy: M. Scheller and M. Koch; Opt. Express, OSA, 2009, 17(20), pp. 17723-17733 [DOI]
Evaluation of leaf water status by means of permittivity at terahertz frequencies: C. Jördens, M. Scheller, B. Breitenstein, D. Selmar and M. Koch; Journal of Biological Physics, 2009, 35(3), pp. 255-264 [DOI]
THz Spectroscopy of Liquid Crystals from the CB Family: R. Wilk, N. Vieweg, O. Kopschinski, T. Hasek and M. Koch; Journal of Infrared, Millimeter and Terahertz Waves, 2009, 30(11), pp. 1139-1147 [DOI]
Liquid crystal based electrically switchable Bragg structure for THz waves: R. Wilk, N. Vieweg, O. Kopschinski and M. Koch; Opt. Express, OSA, 2009, 17(9), pp. 7377-7382 [DOI]
Fast and Accurate Thickness Determination of Unknown Materials using Terahertz Time Domain Spectroscopy: M. Scheller and M. Koch; Journal of Infrared, Millimeter and Terahertz Waves, 2009, 30(7), pp. 762-769 [DOI]
High Q-factor metasurfaces based on miniaturized asymmetric single split resonators: I.A. Al-Naib, C. Jansen and M. Koch; Applied Physics Letters, 2009, 94, pp. 153505 [DOI]
Spatially resolved measurements of depletion properties of large gate two-dimensional electron gas semiconductor terahertz modulators: T. Kleine-Ostmann, K. Pierz, G. Hein, P. Dawson, M. Marso and M. Koch; Journal of Applied Physics, 2009, 105(9), pp. 093707 [DOI]
Terahertz birefringence for orientation analysis: C. Jördens, M. Scheller, M. Wichmann, M. Mikulics, K. Wiesauer and M. Koch; Appl. Opt., OSA, 2009, 48(11), pp. 2037-2044 [DOI]
Modelling heterogeneous dielectric mixtures in the terahertz regime: a quasi-static effective medium theory: M. Scheller, S. Wietzke, C. Jansen and M. Koch; Journal of Physics D: Applied Physics, 2009, 42, pp. 065415 [DOI]
Monitoring polymeric compounding processes inline with THz time-domain spectroscopy: N. Krumbholz, T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, M. Mikulics and M. Koch; Polymer Testing, 2009, 28(1), pp. 30-35 [DOI]
Analyzing sub-100-[mu]m samples with transmission terahertz time domain spectroscopy: M. Scheller, C. Jansen and M. Koch; Optics Communications, 2009, 282(7), pp. 1304 - 1306 [DOI]
A hybrid time-domain model for pulsed terahertz dipole antennas: K. Ezdi, B. Heinen, C. Jördens, N. Vieweg, N. Krumbholz, R. Wilk, M. Mikulics and M. Koch; J. Europ. Opt. Soc. Rap. Public., European Optical Society, 2009, 4 [DOI]

2008

Fibre-coupled terahertz transceiver head: C. Jördens, N. Krumbholz, T. Hasek, N. Vieweg, B. Scherger, L. Bähr, M. Mikulics and M. Koch; Electronics Letters, 2008, 44, pp. 1473 [DOI]
Impact of the contact metallization on the performance of photoconductive THz antennas: N. Vieweg, M. Mikulics, M. Scheller, K. Ezdi, R. Wilk, H.W. Hübers and M. Koch; Optics Express, 2008, 16(24), pp. 19695-19705 [DOI]
Applying the Babinet principle to asymmetric resonators: I.A.I. Al-Naib, C. Jansen and M. Koch; Electronics Letters, 2008, 44(21), pp. 1228-1229 [DOI]
Miniaturized bandpass filter based on metamaterial resonators: I.A.I. Al-Naib, C. Jansen and M. Koch; Journal of Physics D: Applied Physics, 2008, 41, pp. 205002 [DOI]
Thin-film sensing with planar asymmetric metamaterial resonators: I. A.I. Al-Naib, C. Jansen and M. Koch; Applied Physics Letters, 2008, 93, pp. 083507 [DOI]
All-semiconductor laser driven terahertz time-domain spectrometer: C. Jördens, T. Schlauch, M. Li, M.R. Hofmann, M. Bieler and M. Koch; Applied Physics B: Lasers and Optics, 2008, 93(2), pp. 515-520 [DOI]
THz Metrology: B. Gutschwager, J. Hollandt, A. Steiger, I. Pupeza, R. Muller, M. Koch, T. Kleine-Ostmann, T. Schrader, M. Bieler, U. Siegner and C. Monte; Frequenz, 2008, 62(5-6), pp. 137-148 [URL]
Sub-terahertz on-off switch based on a two-dimensional photonic crystal infiltrated by liquid crystals: Z. Ghattan, T. Hasek, R. Wilk, M. Shahabadi and M. Koch; Optics Communications, 2008, 281(18), pp. 4623-4625 [DOI]
A Continuous wave terahertz spectrometer as a noncontact thickness measuring device: R. Wilk, F. Breitfeld, M. Mikulics and M. Koch; Appl. Opt., OSA, 2008, 47(16), pp. 3023-3026 [DOI]
Coupling of free space sub-terahertz waves into dielectric slabs using PC waveguides: Z. Ghattan, T. Hasek, M. Shahabadi and M. Koch; Optics Express, 2008, 16, pp. 6112 - 6118 [DOI]
300 GHz transmission system: C. Jastrow, K. Münter, R. Piesiewicz, T. Kürner, M. Koch and T. Kleine-Ostmann; Electronics Letters, 2008, 44(3), pp. 213 [DOI]
Discrimination between intra- and intermolecular THz modes in biomolecular crystals: a combined theoretical and experimental study: T. Kleine-Ostmann, R. Wilk, F. Rutz, M. Koch, H. Niemann, B. Güttler and J. Grunenberg; ChemPhysChem, 2008, 9, pp. 554
Group delay characteristics in coplanar waveguide left-handed media: I.A. Ibraheem, J. Schoebel and M. Koch; Journal of Applied Physics, 2008, 103, pp. 024903 [DOI]
Detection of foreign bodies in chocolate with pulsed terahertz spectroscopy: C. Jördens and M. Koch; Optical Engineering, 2008, 47, pp. 037003 [DOI]
Performance Analysis of Future Multigigabit Wireless Communication Systems at THz Frequencies With Highly Directive Antennas in Realistic Indoor Environments: R. Piesiewicz, M. Jacob, M. Koch, J. Schoebel and T. Kurner; IEEE Journal of Selected Topics in Quantum Electronics, 2008, 14(2), pp. 421-430 [DOI]
Highly accurate THz time-domain spectroscopy of multi-layer structures: R. Wilk, I. Pupeza, R. Cernat and M. Koch; IEEE Journal of Selected Topics in Quantum Electronics, 2008, 14, pp. 392 [DOI]
High Power Monolithic Two Mode DFB Laser Diodes for the Generation of THz Radiation: A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walter, R. Wilk, M. Mikulics and M. Koch; IEEE Journal Select. Topics Quant. Electronics, 2008, 14(2), pp. 289 - 294 [DOI]
Low-dispersive dielectric mirrors for future wireless terahertz communication systems: I.A. Ibraheem, N. Krumbholz, D. Mittleman and M. Koch; IEEE Microwave and Wireless Components Letters, 2008, 18(1), pp. 67 - 69 [DOI]
The impact of reflections from stratified building materials on the wave propagation in future indoor terahertz communication systems: C. Jansen, R. Piesiewicz, D. Mittleman, M. Koch and T. Kürner; IEEE Transactions on Antennas and Propagation, 2008, 56(5), pp. 1413-1419 [DOI]

2007

Coplanar waveguide metamaterials: The role of bandwidth modifying slots: I.A. Ibraheem and M. Koch; Applied Physics Letters, 2007, 91, pp. 113517 [DOI]
Detection of THz radiation with semiconductor diode lasers: C. Brenner, S. Hoffmann, M.R. Hofmann, M. Salhi, M. Koch, A. Klehr, G. Erbert, G. Trankle, J.T. Steiner, M. Kira and S.W. Koch; Applied Physics Letters, AIP, 2007, 91(10), pp. 101107 [DOI]
Terahertz Technology: A land to be discovered: M. Koch; Optics and Photonics News, 2007, 18(3), pp. 20-25 [DOI] (invited article)
Detection of terahertz radiation with diode lasers: C. Brenner, S. Hoffmann, M.R. Hofmann, M. Salhi, M. Koch, A. Klehr, G. Erbert and G. Tränkle; Electronics Letters, 2007, 43, pp. 870 - 872 [DOI]
Terahertz imaging: a new non-destructive technique for the quality control of plastic weld joints: S. Wietzke, C. Jördens, N. Krumbholz, B. Baudrit, M. Bastian and M. Koch; Journal of the European Optical Society: Rapid Publications, 2007, 2, pp. 07013 [DOI]
Short-range ultra-broadband terahertz communications: Concepts and perspectives: R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch, J. Schoebel and T. Kürner; IEEE Antennas and Propagation Magazine, 2007, 49(6), pp. 24-39 [DOI]
Highly accurate optical material parameter determination with THz time-domain spectroscopy: I. Pupeza, R. Wilk and M. Koch; Opt. Express, OSA, 2007, 15(7), pp. 4335-4350 [DOI]
Scattering analysis for the modeling of THz communication systems: R. Piesiewicz, C. Jansen, D. Mittleman, T. Kleine-Ostmann, M. Koch and T. Kürner; IEEE Transactions on Antennas and Propagation, 2007, 55(11), pp. 3002 - 3009 [DOI]
Determination of additive content in polymeric compounds with terahertz time-domain spectroscopy: S. Wietzke, C. Jansen, F. Rutz, D.M. Mittleman and M. Koch; Polymer Testing, 2007, 26(5), pp. 614-618 [DOI]
Properties of Building and Plastic Materials in the THz Range: R. Piesiewicz, C. Jansen, S. Wietzke, D. Mittleman, M. Koch and T. Kürner; International Journal of Infrared and Millimeter Waves, Springer New York, 2007, 28, pp. 363-371 [DOI]
Dielectric Reflectors for TeraHertz Frequencies: R. Wilk, N. Krumbholz, F. Rutz, D.M. Mittleman and M. Koch; Journal of Nanoelectronics and Optoelectronics, 2007, 2(1), pp. 77-82 [DOI] (invited article)
Terahertz generation with 1064nm DFB laser diode: R. Wilk, A. Klehr, M. Mikulics, T. Hasek, M. Walther and M. Koch; Electronics Letters, 2007, 43(2), pp. 108-110 [DOI]
Nonlinear mixing between the emission of a cw laser and a femtosecond laser: M.A. Salhi, M. Bieler and M. Koch; Optics Communications, 2007, 274, pp. 198 [DOI]
A novel THz source based on a two-color Nd: LSB microchip-laser and a LT-GaAsSb photomixer: U. Willer, R. Wilk, W. Schippers, S. Böttger, D. Nodop, T. Schossig, W. Schade, M. Mikulics, M. Koch, M. Walther, H. Niemann and B. Güttler; Applied Physics B: Lasers and Optics, 2007, 87(1), pp. 13-16 [DOI]

2006

Micro-mirrors for a multifocus terahertz imaging system: C. Jördens, M. Salhi, T. Hasek, G. Thorwirth, U. Böttger and M. Koch; Proceedings of the European Microwave Association, 2006, 12(4), pp. 300-304
Terahertz birefringence of liquid crystal polymers: F. Rutz, T. Hasek, M. Koch, H. Richter and U. Ewert; Applied Physics Letters, 2006, 89, pp. 221911 [DOI]
Photonic crystals for fluid sensing in the sub-terahertz range: T. Hasek, H. Kurt, D. Citrin and M. Koch; Applied Physics Letters, 2006, 89, pp. 173508 [DOI]
Terahertz imaging system based on LT-GaAsSb antenna driven by all-semiconductor femtosecond source: K.G. Wilcox, F. Rutz, R. Wilk, H.D. Foreman, J.S. Roberts, J. Sigmund, H.L. Hartnagel, M. Koch and A.C. Tropper; Electronics Letters, 2006, 42(20), pp. 1159-1160 [DOI]
Ceramic dielectric mirrors for the terahertz range: F. Rutz, M. Koch, L. Micele and G. de Portu; Appl. Opt., OSA, 2006, 45(31), pp. 8070-8073 [DOI]
Terahertz quality control of polymeric products: F. Rutz, M. Koch, S. Khare, M. Moneke, H. Richter and U. Ewert; International Journal of Infrared and Millimeter Waves, Springer New York, 2006, 27(4), pp. 547-556 [DOI] (invited article)
Omnidirectional terahertz mirrors: A key element for future terahertz communication systems: N. Krumbholz, K. Gerlach, F. Rutz, M. Koch, R. Piesiewicz, T. Kürner and D. Mittleman; Applied Physics Letters, 2006, 88, pp. 202905 [DOI]
Conductivity of single-stranded and double-stranded deoxyribose nucleic acid under ambient conditions: The dominance of water: T. Kleine-Ostmann, C. Jördens, K. Baaske, T. Weimann, M.H. de Angelis and M. Koch; Applied Physics Letters, 2006, 88, pp. 102102 [DOI]

2005

Structure investigation of LTG-GaAsSb as a new material for photoconductive THz antennas: J. Sigmund, C. Sydlo, H. Hartnagel, N. Benker, H. Fuess, F. Rutz, T. Kleine-Ostmann and M. Koch; Applied Physics Letters, 2005, 87, pp. 252103 [DOI]
Ultrafast electric field measurements in semiconductors by spectral integration over electric field-induced Franz-Keldysh oscillations: M. Bieler, G. Hein, K. Pierz, U. Siegner and M. Koch; Applied Physics Letters, 2005, 87, pp. 042102 [DOI]
Terahertz characterisation of building materials: R. Piesiewicz, T. Kleine-Ostmann, N. Krumbholz, D. Mittleman, M. Koch and T. Kürner; Electronics Letters, 2005, 41(18), pp. 1002-1004 [DOI]
Terahertz time-domain spectroscopy and imaging of artificial RNA: B.M. Fischer, M. Hoffmann, R. Wilk, F. Rutz, H. Helm, T. Kleine-Ostmann, M. Koch and P. Jepsen; Optics Express, 2005, 13(14), pp. 5205-5215 [DOI]

2004

Audio signal transmission over THz communication channel using semiconductor modulator: T. Kleine-Ostmann, K. Pierz, G. Hein, P. Dawson and M. Koch; Electronics Letters, 2004, 40, pp. 124 [DOI]
Room-temperature operation of an electrically driven terahertz modulator: T. Kleine-Ostmann, P. Dawson, K. Pierz, G. Hein and M. Koch; Applied Physics Letters, 2004, 84, pp. 3555 [DOI]
A new class of improved-efficiency THz filters for on-chip detection of biomaterials: F. Stewing, T. Kleine-Ostmann and M. Koch; Microwave and Optical Technology Letters, 2004, 41(2), pp. 79-81 [DOI]

2003

Ultrafast polarization dynamics in biased quantum wells under strong femtosecond optical excitation: D. Turchinovich, P.U. Jepsen, B.S. Monozon, M. Koch, S. Lahmann, U. Rossow and A. Hangleiter; Physical Review B, 2003, 68(24), pp. 241307 [DOI]

2002

Modulation of THz radiation by semiconductor nanostructures: T. Kleine-Ostmann, M. Koch and P. Dawson; Microwave and Optical Technology Letters, 2002, 35(5), pp. 343-345 [DOI]
Fourier-transform external cavity lasers: M. Breede, S. Hoffmann, J. Zimmermann, J. Struckmeier, M. Hofmann, T. Kleine-Ostmann, P. Knobloch, M. Koch, J.P. Meyn, M. Matus, S.W. Koch and J.V. Moloney; Optics Communications, 2002, 207(1-6), pp. 261-271 [DOI]
Quantifying the drift velocity of carrier ensembles in time-dependent electric fields: M. Bieler, J. Hübner, M. Oestreich, M. Koch, G. Hein, K. Pierz and U. Siegner; Journal of Applied Physics, 2002, 91, pp. 9869 [DOI]
Dual-wavelength fibre laser: T. Kleine-Ostmann, P. Knobloch, R. Caspary, M. Hofmann and M. Koch; Electronics Letters, 2002, 38, pp. 309 [DOI]
Flexible all-plastic mirrors for the THz range: D. Turchinovich, A. Kammoun, P. Knobloch, T. Dobbertin and M. Koch; Applied Physics A: Materials Science & Processing, 2002, 74(2), pp. 291-293 [DOI]

2001

Continuous-wave THz imaging: G. Hein, K. Pierz, M. Sperling, K. Donhuijsen, T. Kleine-Ostmann, P. Knobloch, M. Koch, S. Hoffmann, M. Breede and M. Hofmann; Electronics Letters, 2001, 37, pp. 1461 [DOI]

2000

Spatial pattern formation of optically excited carriers in photoconductive switches: M. Bieler, G. Hein, K. Pierz, U. Siegner and M. Koch; Applied Physics Letters, 2000, 77, pp. 1002 [DOI]
An optically controllable terahertz filter: I.H. Libon, S. Baumgärtner, M. Hempel, N.E. Hecker, J. Feldmann, M. Koch and P. Dawson; Applied Physics Letters, 2000, 76, pp. 2821 [DOI]
Launching surface plasmons into nanoholes in metal films: C. Sönnichsen, A.C. Duch, G. Steininger, M. Koch, G. von Plessen and J. Feldmann; Applied Physics Letters, 2000, 76, pp. 140 [DOI]

1999

Magnetoexciton quantum beats: influence of Coulomb correlations: M. Koch, S.T. Cundiff, W.H. Knox, J. Shah and W. Stolz; Solid State Communications, 1999, 111(10), pp. 553 - 558 [DOI]
Recent advances in terahertz imaging: D.M. Mittleman, M. Gupta, R. Neelamani, R.G. Baraniuk, J.V. Rudd and M. Koch; Applied Physics B: Lasers and Optics, 1999, 68(6), pp. 1085-1094 [DOI] (invited article)
Excitonic wave packets in space- and time-resolved pump and probe experiments: R. Otremba, S. Grosse, Koch, J. Feldmann, V. Axt, T. Kuhn and W. Stolz; Solid state communications, 1999, 109, pp. 317 [DOI]

1998

THz-imaging: a new method for density mapping of wood: M. Koch, S. Hunsche, P. Schumacher, M.C. Nuss, J. Feldmann and J. Fromm; Wood Science and Technology, 1998, 32(6), pp. 421-427 [DOI]
Laser-induced thermal expansion of a scanning tunneling microscope tip measured with an atomic force microscope cantilever: R. Huber, M. Koch and J. Feldmann; Applied Physics Letters, 1998, 73(17), pp. 2521 [DOI]
THz near-field imaging: S. Hunsche, M. Koch, I. Brener and M.C. Nuss; Optics Communications, 1998, 150(1-6), pp. 22 - 26 [DOI]
New Dimensions in T-Ray Imaging: M. Koch, S. Hunsche, D.M. Mittleman and M.C. Nuss; IEICE Trans. Electron., 1998, 81-C(2), pp. 269 - 276 [URL]
Cavity Quantum Electrodynamics: Observation of a characteristic nonlinear response: M. Koch, J. Shah and T. Meier; Physical Review B, 1998, 57(4), pp. R2049-R2052 [DOI]

1997

Short cavity erbium/ytterbium fiber lasers mode-locked with a saturable Bragg reflector: B.C. Collings, K. Bergman, S.T. Cundiff, S. Tsuda, J.N. Kutz, J.E. Cunningham, W.Y. Jan, M. Koch and W.H. Knox; IEEE Journal of Selected Topics in Quantum Electronics, 1997, 3(4), pp. 1065-1075 [DOI]
THz oscillations in the emission from a semiconductor microcavity: M. Tsuchiya, M. Koch, J. Shah, T.C. Damen, W.Y. Jan and J.E. Cunningham; Applied Physics Letters, 1997, 71, pp. 1240 [DOI]
Spectrally and Temporally Resolved Gain Dynamics in Mode Locked Semiconductor Lasers: P. Miltenyi, M. Koch, M. Hofmann, H. Jung and W. Elsäßer; Applied Physics Letters, 1997, 70, pp. 1506 [DOI]

1996

Excitonic Quantum Beats in Semiconductor Quantum-Well Structures: M. Koch, G. von Plessen, J. Feldmann and E. Göbel; Chemical Physics, 1996, 120, pp. 367 [DOI]
Optical coherence in semiconductors: Strong emission mediated by nondegenerate interactions: S.T. Cundiff, M. Koch, W.H. Knox, J. Shah and W. Stolz; Physical review letters, 1996, 77(6), pp. 1107-1110 [DOI]
Disorder mediated biexcitonic beats in semiconductor quantum wells: S.T. Cundiff, J. Feldmann, W. Stolz, P. Thomas, S.W. Koch, E. Göbel, T.F. Albrecht, K. Bott, T. Meier, A. Schulze and M. Koch; Physical Review B, 1996, 54(7), pp. 4436-4439 [URL]
Excitonic dephasing in semimagnetic semiconductors: S.T. Cundiff, R. Hellmann, M. Koch, G. Mackh, A. Waag, G. Landwehr, W.H. Knox and E. Göbel; Journal of the Optical Society of America B, 1996, 13(6), pp. 1263-1267 [DOI]
Exciton ionization induced by an electric field in a strongly-coupled GaAs/AlGaAs superlattice: G. von Plessen, T. Meier, M. Koch, P. Thomas, S.W. Koch, E. Göbel, K. Goossen, J. Kuo and R. Kopf; Physical Review B, 1996, 53, pp. 13688 [DOI]

1995

Enhanced energy and phase relaxation of excitons in the presence of bare electrons: M. Koch, R. Hellmann, G. Bastian, J. Feldmann, E. Göbel and P. Dawson; Physical Review B, 1995, 51(19), pp. 13887-13890 [DOI]
Light Propagation and Disorder Effects in Semiconductor Multiple Quantum Wells: T. Stroucken, A. Knorr, C. Anthony, A. Schulze, P. Thomas, S.W. Koch, M. Koch, S.T. Cundiff, J. Feldmann and E.O. Göbel; Phys. Rev. Lett., American Physical Society, 1995, 74(12), pp. 2391-2394 [DOI]

1994

Exciton dynamics in disordered quantum wells: Localized and delocalized regimes: R. Hellmann, S.T. Cundiff, M. Koch, J. Feldmann, E.O. Göbel, B. Kuhn-Heinrich, D.R. Yakovlev, A. Waag and G. Landwehr; Physical Review B, 1994, 50(19), pp. 14651-14654 [DOI]
Simultaneous influence of disorder and Coulomb interaction on photon echoes in semiconductors: F. Jahnke, M. Koch, T. Meier, J. Feldmann, W. Schäfer, P. Thomas, S.W. Koch, E.O. Göbel and H. Nickel; Physical Review B, 1994, 50(11), pp. 8114-8117 [DOI]
Picosecond gain dynamics of an actively mode-locked external-cavity laser diode: M. Hofmann, M. Koch, J. Feldmann, W. Elsasser, E. Gobel, W. Chow and S. Koch; Journal of Quantum Electronics, IEEE; Journal of Quantum Electronics, IEEE, California, 1994, 30, pp. 1756 - 1762 [DOI]
Koch et al. reply: M. Koch, J. Feldmann, G. von Plessen, S.T. Cundiff, E.O. Göbel, P. Thomas and K. Köhler; Phys. Rev. Lett., American Physical Society, 1994, 73(1), pp. 210 [DOI]
Temporal and spectral gain dynamics in an actively modelocked semiconductor laser: M. Hofmann, M. Koch, H.-J. Heinrich, G. Weiser, J. Feldmann, W.E. er, E. Göbel, W.W. Chow and S. Koch; IEE Proc.-Optoelectron., 1994, 141, pp. 127 [DOI]

1993

Excitonic Quantum Beats in CdTe/Cd_1-xMn_xTe Quantum Wells: M. Koch, R. Hellmann, S.T. Cundiff, J. Feldmann and E.O.. and Yakovlev, D.R. and Waag, A. and Landwehr, G. Göbel; Solid state communications, 1993, 88, pp. 515 [DOI]
Coupling of exciton transitions associated with different quantum-well islands: M. Koch, J. Feldmann, E.O. Göbel, P. Thomas, J. Shah and K. Köhler; Physical Review B, 1993, 48(15), pp. 11480-11483 [DOI]
Homogeneous linewidth of excitons in semimagnetic CdTe/Cd_1-xMn_xTe multiple quantum wells: R. Hellmann, M. Koch, J. Feldmann, S.T. Cundiff, E.O. Göbel, D.R. Yakovlev, A. Waag and G. Landwehr; Phys. Rev. B, American Physical Society, 1993, 48(4), pp. 2847-2850 [DOI]
Coherent dynamics of excitonic wave packets: J. Feldmann, T. Meier, G. von Plessen, M. Koch, E.O. Göbel, P. Thomas, G. Bacher, C. Hartmann, H. Schweizer, W. Schäfer and H. Nickel; Phys. Rev. Lett., American Physical Society, 1993, 70(20), pp. 3027-3030 [DOI]
Subpicosecond photon-echo spectroscopy on GaAs/AlAs short-period superlattices: M. Koch, D. Weber, J. Feldmann, E.O. Göbel, T. Meier, A. Schulze, P. Thomas, S. Schmitt-Rink and K. Ploog; Physical Review B, 1993, 47(3), pp. 1532-1539 [DOI]

1992

Quantum beats versus polarization interference: An experimental distinction: M. Koch, J. Feldmann, G. von Plessen, E. Göbel, P. Thomas and K. Köhler; Phys. Rev. Lett., 1992, 69, pp. 3631-3634 [DOI]