Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2012Comparison of high-speed terahertz optical sampling techniques at different wavelengths
Zouaghi, W.; Ospald, F.; Molter, Daniel; Beigang, René
Conference Paper
2012Comparison of THz emitters and detectors pumped at 1560 nm: DAST, ErAs:InGaAs and LTG GaAs
Ospald, F.; Zouaghi, W.; Rämer, J.-M.; Beigang, René
Conference Paper
2011Three-dimensional GaN for semipolar light emitters
Wunderer, T.; Feneberg, M.; Lipski, F.; Wang, J.; Leute, R.A.R.; Schwaiger, S.; Thonke, K.; Chuvilin, A.; Kaiser, U.; Metzner, S.; Bertram, F.; Christen, J.; Beirne, G.J.; Jetter, M.; Michler, P.; Schade, L.; Vierheilig, C.; Schwarz, U.T.; Dräger, A.D.; Hangleiter, A.; Scholz, F.
Journal Article
2010Compositional variation of nearly lattice-matched InAlGaN alloys for high electron mobility transistors
Lim, T.; Aidam, Rolf; Kirste, Lutz; Waltereit, Patrick; Quay, Rüdiger; Müller, Stefan; Ambacher, O.
Journal Article
2010Influence of the surface potential on electrical properties of Al(x)Ga(1-x)N/GaN heterostructures with different Al-content: Effect of growth method
Köhler, K.; Müller, S.; Aidam, R.; Waltereit, P.; Pletschen, W.; Kirste, L.; Menner, H.; Bronner, W.; Leuther, A.; Quay, R.; Mikulla, M.; Ambacher, O.; Granzner, R.; Schwierz, F.; Buchheim, C.; Goldhahn, R.
Journal Article
2010Mid-infrared quantum cascade detectors for applications in spectroscopy and pyrometry
Hofstetter, D.; Giorgetta, F.R.; Baumann, E.; Yang, Q.K.; Manz, C.; Köhler, K.
Conference Paper
2010Mid-infrared quantum cascade detectors for applications in spectroscopy and pyrometry
Hofstetter, D.; Giorgetta, F.R.; Baumann, E.; Yang, Q.K.; Manz, C.; Köhler, K.
Conference Paper, Journal Article
2010Reduction of the threading edge dislocation density in AlGaN epilayers by GaN nucleation for efficient 350 nm light emitting diodes
Gutt, R.; Kirste, L.; Passow, T.; Kunzer, M.; Köhler, K.; Wagner, J.
Journal Article, Conference Paper
2009Carrier mass measurements in degenerate indium nitride
Pettinari, G.; Polimeni, A.; Capizzi, M.; Blokland, J.H.; Christianen, P.C.M.; Maan, J.C.; Lebedev, V.; Cimalla, V.; Ambacher, O.
Journal Article
2009Determination of surface potential of GaN:Si
Köhler, K.; Maier, M.; Kirste, L.; Wiegert, J.; Menner, H.
Journal Article, Conference Paper
2009Growth and electrical properties of AlxGa1-xN/GaN heterostructures with different Al-content
Köhler, K.; Müller, S.; Waltereit, P.; Kirste, L.; Menner, H.; Bronner, W.; Quay, R.
Journal Article
2009H- and D-related mid-infrared absorption bands in Ga(1-y)In(y)As(1-x)N(x) epitaxial layers
Alt, H.C.; Messerer, P.; Köhler, K.; Riechert, H.
Journal Article
2009Large-area terahertz emitters based on GaInAsN
Peter, F.; Winnerl, S.; Schneider, H.; Helm, M.; Köhler, K.
Conference Paper
2009Optical and mass spectrometric investigation of the interaction of hydrogen with nitrogen In (In)GaAsN layers
Alt, H.C.; Messerer, P.; Köhler, K.; Riechert, H.; Kirste, L.
Conference Paper
2009Quantum cascade detectors
Giorgetta, F.R.; Baumann, E.; Graf, M.; Yang, Q.K.; Manz, C.; Köhler, K.; Beere, H.E.; Ritchie, D.A.; Linfield, E.; Davies, A.G.; Fedoryshyn, Y.; Jäckel, H.; Fischer, M.; Faist, J.; Hofstetter, D.
Journal Article
2009Quaternary GaInAsSb/AlGaAsSb vertical-external-cavity surface-emitting lasers - a challenge for MBE growth
Manz, C.; Yang, Q.K.; Rattunde, M.; Schulz, N.; Rösener, B.; Kirste, L.; Wagner, J.; Köhler, K.
Journal Article, Conference Paper
2009The role of gated and ungated plasma in THz detection by field effect transistors
Sakowicz, M.; Lusakowski, J.; Karpierz, K.; Grynberg, M.; Knap, W.; Köhler, K.; Valusis, G.; Golaszewska, K.; Kaminska, E.; Piotrowska, A.
Conference Paper
2008Coherent acoustic phonons in nanostructures
Dekorsky, T.; Taubert, R.; Hudert, F.; Bartels, A.; Habenicht, A.; Merkt, F.; Leiderer, P.; Köhler, K.; Schmitz, J.; Wagner, J.
Conference Paper
2008Generation and detection of THz radiation with scalable antennas based on GaAs substrates with different carrier lifetimes
Winnerl, S.; Peter, F.; Nitsche, S.; Dreyhaupt, A.; Zimmermann, B.; Wagner, M.; Schneider, H.; Helm, M.; Köhler, K.
Journal Article
2008High-brightness long-wavelength semiconductor disk lasers
Schulz, N.; Hopkins, J.-M.; Rattunde, M.; Burns, D.; Wagner, J.
Journal Article
2008High-performance optically pumped GaSb-based semiconductor disk lasers for the 2.Xµm wavelength range
Rattunde, M.; Schulz, N.; Rösener, B.; Manz, C.; Köhler, K.; Wagner, J.; Hopkins, J.-M.; Burns, D.
Conference Paper
2008Influence of doping profiles on coherent acoustic phonon detection and generation in semiconductors
Hudert, F.; Bartels, A.; Dekorsky, T.; Köhler, K.
Journal Article
2008Leistungsstarke Emitter und einfach handhabbare Detektoren für die Terahertz-Time-Domain-Spektroskopie
Dreyhaupt, A.; Peter, F.; Winnerl, S.; Nitsche, S.; Wagner, M.; Schneider, H.; Helm, M.; Köhler, K.
Journal Article
2008The response rate of room temperature terahertz InGaAs-based bow-tie detector with broken symmetry
Kasalynas, I.; Seliuta, D.; Simniskis, R.; Tamosiunas, V.; Vaicikauskas, V.; Grigelionis, I.; Nedzinskas, R.; Köhler, K.; Valusis, G.
Conference Paper
2008The surface potential of GaN:Si
Köhler, K.; Wiegert, J.; Menner, H.P.; Maier, M.; Kirste, L.
Journal Article
2008Terahertz detection by the entire channel of high electron mobility transistors
Sakowicz, M.; Lusakowski, J.; Karpierz, K.; Knap, W.; Grynberg, M.; Köhler, K.; Valusis, G.; Golaszewska, K.; Kaminska, E.; Piotrowska, A.; Caban, P.; Strupinski, W.
Journal Article, Conference Paper
2008Terahertz detection by two dimensional plasma field effect transistors in quantizing magnetic fields
Sakowicz, M.; Lusakowski, J.; Karpierz, K.; Grynberg, M.; Knap, W.; Köhler, K.; Valusis, G.; Golaszewska, K.; Kaminska, E.; Piotrowska, A.
Journal Article
2008Terahertz emission from a large-area GaInAsN emitter
Peter, F.; Winnerl, S.; Schneider, H.; Helm, M.; Köhler, K.
Journal Article
2008Terahertz transmitters and receivers
Sartorius, B.
Conference Paper
2008THz detection by field-effect transistors in magnetic fields: Shallow water vs. deep water mechanism of electron plasma instability
Sakowicz, M.; Lusakowski, J.; Karpierz, K.; Grynberg, M.; Knap, W.; Köhler, K.; Valusis, G.; Golaszewska, K.; Kaminska, E.; Piotrowska, A.
Journal Article
2007Barrier- and in-well pumped GaSb-based 2.3 µm VECSELs
Wagner, J.; Schulz, N.; Rattunde, M.; Ritzenthaler, C.; Manz, C.; Wild, C.; Köhler, K.
Journal Article
2007Coherent acoustic phonons in phonon cavities investigated by asynchronous optical sampling
Hudert, F.; Bartels, A.; Janke, C.; Dekorsy, T.; Köhler, K.
Conference Paper, Journal Article
2007Identification of point defects in Ga(Al)NAs alloys
Vorona, I.P.; Mchedlidze, T.; Dagnelund, D.; Buyanova, I.A.; Chen, W.M.; Köhler, K.
Conference Paper
2007Telecom components for terahertz applications
Sartorius, B.; Bottcher, J.; Bornholdt, C.; Kunzel, H.; Röhle, H.; Schlak, M.
Conference Paper
2007The two-dimensional bigradient effect and its application for GHz-THz sensing
Seliuta, D.; Gruzinskis, V.; Tamosiunas, V.; Juozapavicius, A.; Kasalynas, I.; Asmontas, S.; Valusis, G.; Steenson, P.; Chow, W.-H.; Harrison, P.; Lisauskas, A.; Roskos, H.G.; Köhler, K.
Conference Paper
2007Ultrafast waveguide-integrated pin-photodiodes and photonic mixers from GHz to THz range
Bach, H.-G.
Conference Paper
2006Coherent acoustic phonons in nanostructures investigated by asynchronous optical sampling
Dekorsy, T.; Hudert, F.; Cerna, R.; Schäfer, H.; Janke, C.; Bartels, A.; Köhler, K.; Braun, S.; Wiemer, M.; Mantl, S.
Conference Paper
2006Correlation of band formation and local vibrational mode structure in Ga(0.95)Al(0.05)As(1-x)N(x) with 0<= x <= 0.03
Güngerich, M.; Klar, P.J.; Heimbrodt, W.; Volz, K.; Köhler, K.; Wagner, J.; Polimeni, A.; Capizzi, M.; Alt, H.C.; Gomeniuk, Y.V.
Journal Article
2006Femtosecond time-resolved optical pump-probe spectroscopy at kilohertz-scan-rates over nanosecond-time-delays without mechanical delay line
Bartels, A.; Hudert, F.; Janke, C.; Dekorsy, T.; Köhler, K.
Journal Article
2006Generation of a DC Fiske current by coupling of Bloch and in-plane cyclotron oscillations in a semiconductor superlattice
Kosevich, Y.A.; Hummel, A.B.; Roskos, H.G.; Köhler, K.
Journal Article
2006InP-based 1.55 µm waveguide-integrated photodetectors for high-speed applications
Beling, A.
Conference Paper
2006Mg doping profile in III-N light emitting diodes in close proximity to the active region
Köhler, K.; Perona, A.; Maier, M.; Wiegert, J.; Kunzer, M.; Wagner, J.
Journal Article
2006Multi-wafer MBE grown InP-based DHBTs for millimeterwave and digital applications
Driad, R.; Lösch, R.; Schneider, K.; Makon, R.E.; Ludwig, M.; Weimann, G.
Journal Article
2006New trends in terahertz electronics
Tamosiunas, V.; Seliuta, D.; Juozapavicius, A.; Sirmulis, E.; Valusis, G.; Fatimy, A. el; Meziani, Y.; Dyakonova, N.; Lusakowski, J.; Knap, W.; Lisauskas, A.; Roskos, H.G.; Köhler, K.
Journal Article
2006Optically detected magnetic resonance studies of point defects in Ga(Al)NAs
Vorona, I.P.; Mchedlidze, T.; Dagnelund, D.; Buyanova, I.A.; Chen, W.M.; Köhler, K.
Journal Article
2006Silicon lens-coupled bow-tie InGaAs-based broadband terahertz sensor operating at room temperature
Seliuta, D.; Kasalynas, I.; Tamosiunas, V.; Balakauskas, S.; Martunas, Z.; Asmontas, S.; Valusis, G.; Lisauskas, A.; Roskos, H.G.; Köhler, K.
Journal Article
2006Time-resolved photocurrent spectroscopy of optically excited superlattices and the prospects for Bloch gain
Lisauskas, A.; Blöser, C.; Sachs, R.; Demarina, N.V.; Juozapavicius, A.; Valusis, G.; Köhler, K.; Roskos, H.G.
Conference Paper
2006Ultrafast fiske effect in semiconductor superlattices
Kosevich, Y.A.; Hummel, A.B.; Roskos, H.G.; Köhler, K.
Journal Article
2005Bonding of nitrogen in dilute InAsN and high In-content GaInAsN
Wagner, J.; Köhler, K.; Ganser, P.; Maier, M.
Journal Article
2005Broad band THz sensing by 2DEG bow-tie-type diodes
Valusis, G.; Seliuta, D.; Tamosiunas, V.; Sirmulis, E.; Balakauskas, S.; Gradauskas, J.; Suziedelis, A.; Asmontas, S.; Anbinderis, T.; Narkunas, A.; Papsujeva, I.; Lisauskas, A.; Roskos, H.G.; Köhler, K.
Journal Article, Conference Paper
2005Control of the Mg doping profile in III-N light-emitting diodes and its effect on the elecroluminescence efficiency
Köhler, K.; Stephan, T.; Perona, A.; Wiegert, J.; Maier, M.; Kunzer, M.; Wagner, J.
Journal Article
2005Dynamics of the electric field in a GaAs/AlGaAs superlattice after femtosecond optical excitation: Application of time-resolved spectroscopic techniques
Lisauskas, A.; Blöser, C.; Sachs, R.; Roskos, H.G.; Juozapavicius, A.; Valusis, G.; Köhler, K.
Journal Article, Conference Paper
2005Electro-optic investigation of the Coherent Hall Effect in semiconductor superlattices
Hummel, A.B.; Blöser, C.; Bauer, T.; Roskos, H.G.; Kosevich, Y.; Köhler, K.
Journal Article
2005Improved GaN layer morphology by hydride vapor phase epitaxy on misoriented Al(2)O(3) wafers
Scholz, F.; Brueckner, P.; Habel, F.; Peter, M.; Köhler, K.
Journal Article
2005In-Plane shaped GaAS/AlGaAS modulation-doped structures: Physics and applications for THz/SUBTHz sensing
Asmontas, S.; Juozapavicius, A.; Seliuta, D.; Sirmulis, E.; Tamosiunas, V.; Valusis, G.; Köhler, K.
Book Article
2005Optical switching of clockwise/anti-clockwise lasing in bus coupled microrings
Troppenz, U.; Hamacher, M.; Radziunas, M.; Heidrich, H.
Conference Paper
2005THz/subTHz detection by asymmetrically-shaped bow-tie diodes containing 2DEG Layer
Seliuta, D.; Tamosiunas, V.; Sirmulis, E.; Asmontas, S.; Suziedelis, A.; Gradauskas, J.; Valusis, G.; Steenson, P.; Chow, W.-H.; Harrison, P.; Lisauskas, A.; Roskos, H.G.; Köhler, K.
Conference Paper
2004Detection of terahertz/sub-terahertz radiation by asymmetrically-shaped 2DEG layers
Seliuta, D.; Sirmulis, E.; Tamosiunas, V.; Balakauskas, S.; Asmontas, S.; Suziedelis, A.; Gradauskas, J.; Valusis, G.; Lisauskas, A.; Roskos, H.G.; Köhler, K.
Journal Article
2004Epitaxy and characterisation of dilute III-As(1-y)N(y) on GaAs and InP
Köhler, K.; Wagner, J.; Ganser, P.; Serries, D.; Geppert, T.; Maier, M.; Kirste, L.
Conference Paper, Journal Article
2004Growth of GaN crystals and epilayers from solutions at ambient pressure
Meissner, E.; Sun, G.; Hussy, S.; Birkmann, B.; Friedrich, J.; Müller, G.
Conference Paper
2004Intraband coherence of bloch oscillations after momentum scattering
Nüsse, S.; Wolter, F.; Haring Bolivar, P.; Köhler, K.; Hey, R.; Grahn, H.T.; Kurz, H.
Journal Article
2004Microwave sensor based on modulation-doped GaAs/AlGaAs structure
Juozapavicius, A.; Ardaravicius, L.; Suziedelis, A.; Kozic, A.; Gradauskas, J.; Kundrotas, J.; Seliuta, D.; Sirmulis, E.; Asmontas, S.; Valusis, G.; Roskos, H.G.; Köhler, K.
Journal Article, Conference Paper
2004Optical and acoustic intersubband plasmons
Rösch, M.; Batke, E.; Köhler, K.; Ganser, P.
Journal Article
2004The realization of long-wavelength (lambda <= 2.3 µm) Ga(1-x)In(x)As(1-y)N(y) quantum wells on InP by molecular-beam epitaxy
Köhler, K.; Wagner, J.; Ganser, P.; Serries, D.; Geppert, T.; Maier, T.; Kirste, L.
Journal Article
2004Room-temperature intersubband emission from GaInAs-AlAsSb quantum cascade structure
Yang, Q.K.; Manz, C.; Bronner, W.; Köhler, K.; Wagner, J.
Journal Article
2004Wave-function reconstruction in a graded semiconductor superlattice
Lyssenko, V.G.; Hvam, J.M.; Meinhold, D.; Köhler, K.; Leo, K.
Journal Article
2003AlGaN/GaN HEMTs on silicon carbide substrates for microwave power operation
Lossy, R.; Chaturvedi, N.; Heymann, P.; Köhler, K.; Müller, S.; Würfl, J.
Conference Paper
2003Asymmetrically - shaped diodes for microwave - submillimeter sensing
Asmontas, S.; Ardavicius, L.; Balakauskas, S.; Gradauskas, J.; Kozic, A.; Kundrotas, J.; Köhler, K.; Roskos, H.G.; Sachs, R.; Suziedelis, A.; Seliuta, D.; Sirmulis, E.; Valusis, G.
Conference Paper
2003Bonding of nitrogen in dilute GaInAsN and AlGaAsN studied by Raman spectroscopy
Wagner, J.; Geppert, T.; Köhler, K.; Ganser, P.; Maier, M.
Journal Article
2003The coherent Hall effect: Evolution of the Hall current of charge-carrier wavepackets in a semiconductor superlattice
Bauer, T.; Kolb, J.S.; Hummel, A.B.; Roskos, H.G.; Kosevich, Y.; Köhler, K.
Conference Paper
2003The Hall current of coherent electron wavepackets
Bauer, T.; Hummel, A.B.; Kolb, J.S.; Roskos, H.G.; Kosevich, Y.; Köhler, K.
Conference Paper
2003Identification of a Br-correlated bandgap state in GaAs by radiotracer spectroscopy
Albrecht, F.; Pasold, G.; Grillenberger, J.; Achtziger, N.; Witthuhn, W.; Risse, M.; Vianden, R.; Dietrich, M.
Journal Article
2003Influence of a strong magnetic field on the Wannier-Stark states of an electrically biased GaAs/Al(x)Ga(1-x)As superlattice
Hummel, A.B.; Bauer, T.; Roskos, H.G.; Glutsch, S.; Köhler, K.
Journal Article
2003Lifetime of Wannier-Stark states in semiconductor superlattices under strong Zener tunneling to above-barrier bands
Rosam, B.; Leo, K.; Glück, M.; Keck, F.; Korsch, H.J.; Zimmer, F.; Köhler, K.
Journal Article
2003Metastable behavior of anion-site donors in InAs
Risse, M.; Vianden, R.
Journal Article
2003Multiwafer epitaxy of GaN/AlGaN heterostructures for power applications
Köhler, K.; Müller, S.; Rollbühler, N.; Kiefer, R.; Quay, R.; Weimann, G.
Conference Paper
2003New results on high-field transport in semiconductor superlattices
Holfeld, C.P.; Rosam, B.; Meinhold, D.; Glutsch, S.; Schäfer, W.; Zhang, J.; Glück, M.; Korsch, H.J.; Rossi, F.; Köhler, K.; Leo, K.
Conference Paper
2003Peculiarities of excitonic photoluminescence of selectively-doped GaAs/Al(0.25)Ga(0.75)As structures
Kundrotas, J.; Asmontas, S.; Suziedelis, A.; Valusis, G.; Roskos, H.G.; Köhler, K.
Journal Article
2003Quantentopf-Infrarot-Photodetektoren für Hochgeschwindigkeitsanwendungen und Thermographie
Steinkogler, S.
Dissertation
2003Quantitative assessment of Al-to-N bonding in dilute Al(0.33)Ga(0.67)As(1-y)N(y)
Wagner, J.; Geppert, T.; Köhler, K.; Ganser, P.; Maier, M.
Journal Article
2003Quenching of transient photoluminescence by strong in-plane electric fields in quantum wells
Kundrotas, J.; Dargys, A.; Asmontas, S.; Valusis, G.; Köhler, K.
Conference Paper
2003Terahertz optical properties of thin doped contact layers in GaAs device structures
Bauer, T.; Kolb, J.S.; Mohler, E.; Roskos, H.G.; Köhler, K.
Journal Article
2003THz dielectric response of a moving electron gas
Sachs, R.; Banyai, L.; Mohler, E.; Köhler, K.; Roskos, H.G.
Conference Paper
2002Coherent hall effect in a semiconductor superlattice
Bauer, T.; Kolb, J.; Hummel, A.B.; Roskos, H.G.; Kosevich, Y.; Köhler, K.
Journal Article
2002GHz-THz detection by asymmetrically-shaped GaAs: Bulk material versus nanostructures
Valusis, G.; Sachs, R.; Roskos, H.G.; Suziedelis, A.; Gradauskas, J.; Asmontas, S.; Sirmulis, E.; Köhler, K.
Journal Article
2002High-reliability MOCVD-grown quantum dot laser
Sellin, R.L.; Ribbat, C.; Bimberg, D.; Rinner, F.; Konstanzer, H.; Kelemen, M.T.; Mikulla, M.
Journal Article
2002Polarization revival of a Bloch-oscillating wave packet in conjunction with resonant Zener tunneling
Meinhold, D.; Rosam, B.; Löser, F.; Lyssenko, V.G.; Rossi, F.; Zhang, J.-Z.; Köhler, K.; Leo, K.
Journal Article
2001Alpha particle induced luminescence from multiple quantum wells
Kundrotas, J.; Dargys, A.; Granja, C.; Köhler, K.; Pospísil, S.; Remeikis, V.; Smith, K.M.
Conference Paper
2001Changes of MQW photoluminescence under alpha particle irradiation
Kundrotas, J.; Dargys, A.; Valusis, G.; Asmontas, S.; Granja, C.; Pospisil, S.; Köhler, K.
Journal Article
2001Chapter 3: Bloch oscillations in semiconductors: Principles and applications
Sudzius, M.; Lyssenko, V.; Löser, F.; Valusis, G.; Hasche, T.; Leo, K.; Dignam, M.; Köhler, K.
Book Article
2001Fano resonances in semiconductor superlattices
Canzler, T.W.; Holfeld, C.P.; Löser, F.; Lyssenko, V.G.; Leo, K.; Whittaker, D.M.; Köhler, K.
Journal Article
2001Field-induced delocalization and Zener breakdown in semiconductor superlattices
Rosam, B.; Meinhold, D.; Löser, F.; Lyssenko, V.; Leo, K.; Glutsch, S.; Bechstedt, F.; Köhler, K.; Rossi, F.
Journal Article
2001Filling-factor-dependent electron correlations observed in cyclotron resonance
Manger, M.; Batke, E.; Hey, R.; Friedland, K.J.; Köhler, K.; Ganser, P.
Journal Article
2001Influence of alpha particle bombardment and postannealing on photoluminescence from GaAs/Al(0.35)Ga(0.65)As multiple quantum wells
Kundrotas, J.; Dargys, A.; Valusis, G.; Asmontas, S.; Köhler, K.; Leroy, C.
Journal Article
2001Nonlinear transport in superlattices: Bloch oscillations and Zener breakdown
Löser, F.; Rosam, B.; Meinhold, D.; Lyssenko, V.G.; Sudzius, M.; Dignam, M.M.; Glutsch, S.; Bechstedt, F.; Rossi, F.; Köhler, K.; Leo, K.
Journal Article
2000Coupled Bloch-phonon oscillations in semiconductor superlattices
Dekorsy, T.; Bartels, A.; Kurz, H.; Köhler, K.; Hey, R.; Ploog, K.
Journal Article
2000Excitonic photoluminescence quenching by impact ionization of excitons and donors in GaAs/Al(0.35)Ga(0.65)As quantum wells with an in-plane electric field
Kundrotas, J.; Valusis, G.; Cesna, A.; Kundrotaite, A.; Dargys, A.; Suziedelis, A.; Gradauskas, J.; Asmontas, S.; Köhler, K.
Journal Article
2000Femtosecond pulse shaping for coherent carrier control
Heberle, A.; Baumberg, J.; Kuhn, T.; Köhler, K.
Journal Article
2000Field-induced delocalization and zener breakdown in semiconductor superlattices
Rosam, B.; Meinhold, D.; Löser, F.; Lyssenko, V.; Leo, K.; Glutsch, S.; Bechstedt, F.; Köhler, K.
Journal Article
2000Industrial application of heterostructure device simulation
Palankovski, V.; Quay, R.; Selberherr, S.
Conference Paper
2000Midbandgap electro-optic detection of Bloch oscillations
Först, M.; Segschneider, G.; Dekorsy, T.; Kurz, H.; Köhler, K.
Journal Article
2000Observation of coherent zone-folded acoustic phonons generated by raman scattering in a superlattice
Hawker, P.; Kent, A.; Challis, L.; Bartels, A.; Dekorsy, T.; Kurz, H.; Köhler, K.
Journal Article
2000Photon drag investigations of current relaxation processes in a two-dimensional electron gas
Graf, S.; Sigg, H.; Köhler, K.; Bächtold, W.
Journal Article
2000Self-Induced Shapiro effect in semiconductor superlattices
Löser, F.; Dignam, M.; Kosevich, Y.; Köhler, K.; Leo, K.
Journal Article
2000Technology and performance of AlGaN/GaN HEMTs fabricated on 2-inch epitaxy for microwave power applications
Lossy, R.; Hilsenbeck, J.; Würfl, J.; Köhler, K.; Obloh, H.
Conference Paper
1999Coherent acoustic phonons in GaAs/AlAs superlattices
Bartels, A.; Dekorsy, T.; Kurz, H.; Köhler, K.
Journal Article
1999Coherent zone-folded longitudinal acoustic phonons in semiconductor superlattices. Excitation and detection
Bartels, A.; Dekorsy, T.; Kurz, H.; Köhler, K.
Journal Article
1999Dynamics of Bloch Oscillations: Influence of Excitation Conditions
Valusis, G.; Lyssenko, V.; Sudzius, M.; Löser, F.; Hasche, T.; Leo, K.; Köhler, K.
Journal Article
1999Field-induced delocalization and zener breakdown in semiconductor superlattices
Rosam, B.; Löser, F.; Lyssenko, V.; Leo, K.; Glutsch, S.; Bechstedt, F.; Köhler, K.
Journal Article
1999Grating-coupler excited interface phonos in GaAs/AlAs superlattices
Milekhin, A.G.; Rösch, M.; Batke, E.; Köhler, K.; Ganser, P.
Journal Article
1999High frequency optical rectification in bulk GaAs and asymmetric AlGaAs/GaAs quantum wells
Graf, S.; Sigg, H.; Köhler, K.; Bächtold, W.
Conference Paper
1999Influence of Electric Field on Photoluminescence Quenching in GaAs/AlGaAs Quantum Wells
Asmontas, S.; Cesna, A.; Gradauskas, J.; Köhler, K.; Kundrotaite, A.; Kundrotas, J.; Suziedelis, A.; Valusis, G.
Conference Paper
1999Infrared and Raman studies of confined and interface optical phonons in short-period GaAs/AlAs superlattices with a grating coupler
Milekhin, A.G.; Rösch, M.; Batke, E.; Zahn, D.R.T.; Köhler, K.; Ganser, P.; Preobrazhenskij, V.; Semyagin, B.
Journal Article
1999New Features of Spatial-Temporal dynamics of Bloch Oscillations
Dignam, M.; Köhler, K.; Leo, K.; Litvinenko, K.L.; Löser, F.; Lyssenko, V.; Sudzius, M.; Valusis, G.
Conference Paper
1999Optical signal and energy transmission for a retina implant
Groß, M.; Buß, R.; Köhler, K.; Schaub, J.; Jäger, D.
Conference Paper
1999Threshold reduction in pierced microdisk lasers
Backes, S.A.; Cleaver, J.R.A.; Heberle, A.P.; Baumberg, J.J.; Köhler, K.
Journal Article
1998Anharmonicity of Bloch oscillations in GaAs/AlAs superlattices in the case of inhomogeneously broadened excitonic states in a weak electric field
Litvinenko, K.L.; Okhrimenko, I.; Köhler, K.; Lyssenko, V.; Leo, K.; Löser, F.
Journal Article
1998Bloch wave packets in semiconductor superlattices: Composition and spatial displacement
Löser, F.; Sudzius, M.; Lyssenko, V.G.; Hasche, T.; Leo, K.; Dignam, M.M.; Köhler, K.
Journal Article
1998Coherent control of acoustic phonons in semiconductor superlattices
Bartels, A.; Dekorsy, T.; Kurz, H.; Köhler, K.
Journal Article
1998Coherent dynamics of continuum and excitonic states in quantum confined systems
Bakker, H.J.; Dekorsy, T.; Cho, G.C.; Kurz, H.; Leisching, P.; Köhler, K.
Journal Article
1998Coupled cyclotron resonance transitions of bilayer 2DEG systems in GaAs
Hu, C.M.; Batke, E.; Shen, S.C.; Köhler, K.; Ganser, P.
Journal Article
1998Direct measurement of the spatial displacement of Bloch-oscillating electrons in semiconductor superlattices
Sudzius, M.; Lyssenko, V.; Valusis, G.; Löser, F.; Hasche, T.; Dignam, M.; Köhler, K.; Leo, K.
Journal Article
1998Direct observation of the rotational direction of electron spin precession in semiconductors
Oestreich, M.; Hägele, D.; Schneider, H.C.; Knorr, A.; Hansch, A.; Hallstein, S.; Schmidt, K.H.; Köhler, K.; Koch, S.W.; Rühle, W.W.
Journal Article
1998Fano resonances in semiconductor superlattices
Holfeld, C.P.; Löser, F.; Sudzius, M.; Leo, K.; Whittaker, D.M.; Köhler, K.
Journal Article
1998Interaction ruled temperature dependence of the electron cyclotron mass in GaAs heterojunctions
Hu, C.M.; Batke, E.; Köhler, K.; Ganser, P.
Journal Article
1998Microdisk laser structures for mode control and directional emission
Backes, S.A.; Cleaver, J.R.A.; Heberle, A.P.; Köhler, K.
Journal Article
1998Optical control of Bloch-oscillation amplitudes: From harmonic spatial motion to breathing modes
Sudzius, M.; Lyssenko, V.G.; Löser, F.; Leo, K.; Dignam, M.M.; Köhler, K.
Journal Article
1998Polariton motional narrowing in semiconductor multiple quantum wells
Baumberg, J.J.; Heberle, A.P.; Kavokin, A.V.; Vladimirova, M.R.; Köhler, K.
Journal Article
1998Suppression of dopant redistribution in AlGaAs/GaAs laser-HEMT structures for optoelectronic transmitters grown by molecular beam epitaxy
Gaymann, A.; Maier, M.; Köhler, K.; Bronner, W.; Grotjahn, F.; Hornung, J.; Ludwig, M.
Conference Paper
1998Ultra-broadband InP-based photoreceiver with integrated travelling wave amplifier for Gbit/s detection
Bach, H.-G.; Bertenburg, R.M.; Bulow, H.; Jacumeit, G.; Mekonnen, G.G.; Umbach, A.; Unterborsch, G.; Veith, G.; Waasen, S. van
Conference Paper
1997Coulomb-renormalized intraband dynamics probed by THz emission
Wolter, F.; Haring Bolivar, P.; Bartels, G.; Roskos, H.G.; Kurz, H.; Axt, V.M.; Köhler, K.
Journal Article
1997Enhanced electro-optic modulation by integration on non-radiative centers in a resonant tunneling light emitting diode
Alphenaar, B.W.; Baumberg, J.J.; Köhler, K.
Journal Article
1997Influence of LO-phonon emission on bloch oscillations in semiconductor superlattices
Wolter, F.; Roskos, H.G.; Haring Bolivar, P.; Bartels, G.; Kurz, H.; Köhler, K.; Grahn, H.T.; Hey, R.
Journal Article
1997Shape dependence of emission from microdisk lasers
Backes, S.A.; Heberle, A.P.; Cleaver, J.R.A.; Köhler, K.
Journal Article
1997Spin flip of excitons in GaAs quantum wells
Snoke, D.W.; Rühle, W.W.; Köhler, K.; Ploog, K.
Journal Article
1997Ultrafast coherent carrier control in quantum wells
Baumberg, J.J.; Heberle, A.P.; Köhler, K.; Kavokin, A.V.
Journal Article
1993Multi fiber/chip coupling and optoelectronic integrated circuit packaging based on flip chip bonding techniques
Weber, R.; Fidorra, F.; Hamacher, M.; Heidrich, H.; Jacumeit, G.
Conference Paper
1992Integrated wavelength demultiplexer-receiver on InP
Bornholdt, C.; Trommer, D.; Unterborsch, G.; Bach, H.G.; Kappe, F.; Passenberg, W.; Rehbein, W.; Reier, F.; Schramm, C.; Stenzel, R.; Umbach, A.; Venghaus, H.; Weinert, C.M.
Journal Article
1992Passive mode converter with a periodically tilted InP/GaInAsP rib waveguide
Heidrich, H.; Albrecht, P.; Hamacher, M.; Nolting, H.-P.; Schroeter-Janssen, H.; Weinert, C.M.
Journal Article
1991Critical issues in the MBE growth of Ga0.47In0.53As for waveguide/PIN/JFET integration
Kunzel, H.; Kaiser, R.; Passenberg, W.; Trommer, D.; Unterborsch, G.
Conference Paper, Journal Article
1991Electro-optic modulation by electron transfer in MOVPE grown InGaAsP/InP multiple quantum well structures
Agrawal, N.; Hoffmann, D.; Franke, D.; Li, K.C.; Clemens, U.; Witt, A.; Wegener, M.
Conference Paper
1991Fabrication and characterization of a waveguide integrated balanced receiver OEIC on InP
Trommer, D.; Feiste, U.; Kaiser, R.; Mekonnen, G.G.; Passenberg, W.; Reier, F.; Unterborsch, G.
Conference Paper
1991On the current transport across isotype heterojunctions investigated on InP-based BRS-lasers
Bach, H.G.; Fidorra, F.
Conference Paper
1991Polarisation diversity waveguide network integrated on InP for a coherent optical receiver front-end
Heidrich, H.; Hamacher, M.; Albrecht, P.; Engel, H.; Hoffmann, D.; Imhof, D.; Nolting, H.-P.; Reier, F.; Weinert, C.M.
Conference Paper
1991Theoretical investigation of a meander coupler as fast tunable, narrowband multiplexer/demultiplexer for optical ATM-system application
Nolting, H.-P.
Conference Paper
1989Assessment of semi-insulating InP:Fe layers for substrate applications
Grote, N.; Bach, H.G.; Feifel, T.; Franke, D.; Harde, P.; Sartorious, B.; Wolfram, P.
Conference Paper
1989Very high purity InP layers grown by adduct-MOVPE
Wolfram, P.; Reier, F.W.; Franke, D.; Schumann, H.
Journal Article
1988Waveguide-mirror components InGaAsP/InP
Albrecht, P.; Döldissen, W.; Niggebrügge, U.; Nolting, H.-P.; Schmid, H.
Conference Paper
1987Self-aligned waveguide mirrors for optical integration on InGaAsP/InP
Albrecht, P.; Doldissen, W.; Niggerbrugge, U.; Nolting, H.P.; Schmid, H.
Conference Paper
1985High-efficiency phase modulators in InGaAsP/InP
Bornholdt, C.; Doldissen, W.; Franke, D.; Krauser, J.; Niggebrugge, U.; Nolting, H.-P.; Schmitt, F.
Conference Paper
1984Diffused planar InP bipolar transistor with a cadmium oxide film emitter
Su, L.M.; Grote, N.; Schmitt, F.
Journal Article
1984A new open diffusion technique using evaporated Zn3P2 and its application to a lateral p-n-p transistor
Schmitt, F.; Su, L.M.; Franke, D.; Kaumanns, R.
Journal Article
1983Light guiding and electrooptical modulation in InGaAsP/InP double heterostructures
Albrecht, P.; Bach, H.G.; Bornholdt, C.; Doldissen, W.; Franke, D.; Grote, N.; Krauser, J.; Niggebrugge, U.; Nolting, H.P.; Schlak, M.; Tiedke, I.; Logan, R.A.; Reinhart, F.K.
Conference Paper
1977Investigation of the production and technical use of InSb single crystals periodically doped by means of the Peltier effect
Nolting, P.
Journal Article