Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2015NGCPV: A new generation of concentrator photovoltaic cells, modules and systems (a final review)
Datas, A.; Cristóbal, A.B.; Sala, G.; Anton Hernandez, I.; Minano, J.C.; Benítez, P.; Algora, C.; Bett, A.W.; Lackner, D.; Niemeyer, M.; Philipps, S.P.; Siefer, G.; Ekins-Daukes, N.J.; Roca, F.; Cancro, C.; Luque-Heredia, L.; Warmuth, W.; Baudrit, M.; Okada, Y.; Sugiyama, M.; Hishikawa, Y.; Takamoto, T.; Araki, K.; Fukuyama, A.; Nishioka, K.; Suzuki, H.; Kuze, N.; Moriyasu, Y.; Kita, T.; Kotagiri, A.; Kojima, N.; Martí Vega, A.; Yamaguchi, M.; Luque, A.
Conference Paper
2012Local internal quantum efficiency of a green light emitting InGaN/GaN quantum well
Danhof, J.; Schwarz, S.U.; Meyer, T.; Vierheilig, C.; Peter, M.
Journal Article
2011Impact of band structure and transition matrix elements on polarization properties of the photoluminescence of semipolar and nonpolar InGaN quantum wells
Schade, L.; Schwarz, U.T.; Wernicke, H.; Weyers, M.; Kneissl, M.
Journal Article
2011Temperature-dependent photoluminescence measurements on a sub-micrometer length scale on green light emitting InGaN/GaN quantum wells
Danhof, J.; Vierheilig, C.; Schwarz, U.T.; Meyer, T.; Peter, M.; Hahn, B.
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
2000Direct observation of depolarization shift of the intersubband resonance
Graf, S.; Sigg, H.; Köhler, K.; Bächtold, W.
Journal Article
2000Group III-Nitride heterostructures: From materials research to devices
Wagner, J.; Obloh, H.; Kunzer, M.; Schlotter, P.; Pletschen, W.; Kiefer, R.; Kaufmann, U.; Köhler, K.
Conference Paper
2000MOMBE selective infill growth of InP/GaInAs for quantum dot formation
Gibis, R.; Schelhase, S.; Steingrüber, R.; Urmann, G.; Kunzel, H.; Thiel, S.; Stier, O.; Bimberg, D.
Conference Paper, Journal Article
2000Optimization of InGaN/GaN quantum wells for violet GaN/InGaN/AlGaN LEDs
Ramakrishnan, A.; Kunzer, M.; Schlotter, P.; Obloh, H.; Pletschen, W.; Köhler, K.; Wagner, J.
Conference Paper
1999Cyclotron mass of correlated two-dimensional electron GAS systems in GaAs
Manger, M.; Batke, E.; Köhler, K.; Ganser, P.
Conference Paper
1999Dynamics of Bloch Oscillations: Influence of Excitation Conditions
Valusis, G.; Lyssenko, V.; Sudzius, M.; Löser, F.; Hasche, T.; Leo, K.; 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
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
1999Transport parameters of 2D systems derived from microwave transmission experiments
Brensing, A.; Bauhofer, W.; Köhler, K.
Conference Paper
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
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
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
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
1998Photogalvanic effect in asymmetric quantum wells and superlattices
Schneider, H.; Ehret, S.; Schönbein, C.; Schwarz, K.; Bihlmann, G.; Fleissner, J.; Tränkle, G.; Böhm, G.
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
1997Barrier composition dependence of the emission properties of AlGaInAs/GaInAs quantum wells grown by molecular beam epitaxy
Hase, A.; Chew-Walter, A.; Kuenzel, H.
Journal Article
1997Carrier escape time in quantum well lasers: dependence on injection level, doping concentration, and temperature
Romero, B.; Esquivias, I.; Arias, J.; Batko, G.; Weisser, S.; Rosenzweig, J.
Conference Paper
1997Characterization and modeling of InGaAs/GaAs multi-quantum well lasers by capacitance-voltage measurements
Arias, J.; Esquivias, I.; Bürkner, S.; Chazan, P.; Ralston, J.D.; Larkins, E.C.; Mikulla, M.; Weisser, S.; Rosenzweig, J.
Conference Paper
1997Direct measurement of the spatial displacement of bloch-oscillating electrons in semiconductor superlattices
Lyssenko, V.G.; Valusis, G.; Löser, F.; Hasche, T.; Leo, K.; Köhler, K.; Dignam, M.M.
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
1997Large- and selective-area LP-MOVPE growth of InGaAsP-based bulk and QW layers under nitrogen atmosphere
Roehle, H.; Schroeter-Janssen, H.; Kaiser, R.
Conference Paper, Journal Article
1997Low-power photocurrent nonlinearity in quantum well infrared detectors
Mermelstein, C.; Schneider, H.; Sa'ar, A.; Schönbein, C.; Walther, W.; Bihlmann, G.
Journal Article
1997Progress in the layer thickness determination of AlGaAs/GaAs heterostructures using selective etching and AFM imaging of the (110) cleavage planes
Müller, S.; Weyher, J.L.; Dian, R.; Jantz, W.
Journal Article
1997Resonant Raman scattering in GaN/(AlGa)N single quantum wells
Behr, D.; Niebuhr, R.; Wagner, J.; Bachem, K.H.; Kaufmann, U.
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
1997Structural and optical properties of AlGaN/GaN quantum well structures grown by MOCVD on sapphire
Niebuhr, R.; Bachem, K.H.; Behr, D.; Hoffmann, C.; Kaufmann, U.; Lu, Y.; Santic, B.; Wagner, J.; Arlery, M.; Rouviere, J.L.; Jürgensen, H.
Conference Paper
1997Ultrafast acoustic phonon ballistics in semiconductor heterostructures
Baumberg, J.J.; Williams, D.A.; Köhler, K.
Journal Article
1997Ultrafast coherent carrier control in quantum wells
Baumberg, J.J.; Heberle, A.P.; Köhler, K.; Kavokin, A.V.
Journal Article
1996Carrier profile for In(0.35)Ga(0.65)As/GaAs multiquantum well lasers from capacitance-voltage measurements
Arias, J.; Esquivias, I.; Ralston, J.D.; Larkins, E.C.; Weisser, S.; Rosenzweig, J.; Schönfelder, A.; Maier, M.
Journal Article
1996Coherent exciton dynamics as a function of quantum-well number
Weber, D.; Feldmann, J.; Göbel, E.O.; Stroucken, T.; Knorr, A.; Koch, S.W.; Citrin, D.S.; Köhler, K.
Journal Article
1996Damping-limited modulation bandwidths up to 40 GHz in undoped short-cavity In(0.35)Ga(0.65)As-GaAs multiple-quantum-well lasers
Weisser, S.; Larkins, E.C.; Czotscher, K.; Benz, W.; Daleiden, J.; Esquivias, I.; Fleissner, J.; Ralston, J.D.; Romero, B.; Sah, R.E.; Schönfelder, A.; Rosenzweig, J.
Journal Article
1996Dissipative tunneling in asymmetric double-quantum-well system. A coherence phenomenon
Vaupel, H.; Thomas, P.; Kühn, O.; May, V.; Maschke, K.; Heberle, A.P.; Rühle, W.W.; Köhler, K.
Journal Article
1996Femtosecond coherent fields induced by many-particle correlations in transient four-wave mixing
Schäfer, W.; Kim, D.-S.; Shah, J.; Damen, T.C.; Cunningham, J.E.; Goossen, K.W.; Pfeiffer, L.N.; Köhler, K.
Journal Article
1996Field enhanced blockade of the confined energy levels in nanometer scale pillar arrays
Alphenaar, B.W.; Durrani, Z.A.K.; Wagner, M.; Köhler, K.
Journal Article
1996Influence of spatial doping correlation on scattering times studied in gated and ungated GaAs/AlGaAs quantum weels under hydrostatic pressure
Brunthaler, G.; Penn, C.; Suski, T.; Wisniewski, P.; Litwin-Staszewska, E.; Köhler, K.
Journal Article
1996Influence of the electron-electron and electron-phonon interaction on the cyclotron resonance of 2DEG in GaAs
Hu, C.M.; Batke, E.; Köhler, K.; Ganser, P.
Journal Article
1996Metal-non-metal transition at the crossover from antidots to quantum dots
Lütjering, G.; Weiss, D.; Tank, R.W.; Klitzing, K. von; Hülsmann, A.; Jakobus, T.; Köhler, K.
Journal Article
1996Mobility and quantum lifetime in a GaAs/AlGaAs heterostructure. Tuning of the remote-charge correlations
Wisniewski, P.; Suski, T.; Litwin-Staszewska, E.; Brunthaler, G.; Köhler, K.
Journal Article
1996MOCVD-Züchtung und Charakterisierung von Nitridischen Verbindungshalbleitern
Niebuhr, R.
Dissertation
1996Photon drag spectroscopy of a two-dimensional electron system
Sigg, H.; Son, P. van; Köhler, K.
Journal Article
1996Time-resolved study of intervalence band thermalization in a GaAs quantum well
Kim, A.M.T.; Hunsche, S.; Dekorsy, T.; Kurz, H.; Köhler, K.
Journal Article
1996Ultrafast coherent carrier control in quantum wells
Baumberg, J.J.; Heberle, A.P.; Köhler, K.; Ploog, K.
Journal Article
1996Ultrafast photon drag detector for intersubband spectroscopy
Sigg, H.; Graf, S.; Kwakernaak, M.H.; Margotte, B.; Erni, D.; Son, P. van; Köhler, K.
Journal Article
1995Band-gap renormalization and excitonic effects in tunneling in asymmetric double quantum wells
Tackeuchi, A.; Heberle, A.P.; Rühle, W.W.; Köhler, K.
Journal Article
1995Bloch oscillations at room temperature
Dekorsy, T.; Ott, R.; Kurz, H.; Köhler, K.
Journal Article
1995Bloch oscillations in semiconductor superlattices
Roskos, H.G.; Waschke, C.; Victor, K.; Köhler, K.; Kurz, H.
Journal Article
1995Coherent dynamics of excitonic and biexcitonic wave packets in semiconductor superlattices
Leisching, P.; Ott, R.; Bolivar, P.H.; Dekorsy, T.; Bakker, H.J.; Roskos, H.G.; Kurz, H.; Köhler, K.
Journal Article
1995Coherent exciton-photon dynamics in single, double, and quintuple quantum wells.
Weber, D.; Feldmann, J.; Göbel, E.O.; Citrin, D.S.; Köhler, K.
Journal Article
1995Exceptionally slow dephasing of electronic continuum states in a semiconductor
Leisching, P.; Dekorsy, T.; Bakker, H.J.; Kurz, H.; Köhler, K.
Journal Article
1995External-field-induced electric dipole moment of biexcitons in a semiconductor
Leisching, P.; Ott, R.; Haring Bolivar, P.; Dekorsy, T.; Bakker, H.J.; Roskos, H.G.; Kurz, H.; Köhler, K.
Journal Article
1995Four-wave-mixing theory beyond the semiconductor Bloch equations
Axt, V.M.; Stahl, A.; Mayer, E.J.; Haring Bolivar, P.; Nüsse, S.; Ploog, K.; Köhler, K.
Journal Article
1995Interaction coupled cyclotron transitions of two-dimensional electron systems in GaAs at high temperatures
Hu, C.M.; Batke, E.; Köhler, K.; Ganser, P.
Journal Article
1995Midinfrared lead salt multi-quantum-well diode lasers with 282 K operation
Shi, Z.; Tacke, M.; Lambrecht, A.; Böttner, H.
Journal Article
1995Mobility enhancement due to spatial correlation of remote impurity charges in delta-doped AlGaAs/GaAs heterostructure
Suski, T.; Brunthaler, G.; Stöger, G.; Köhler, K.; Wisniewski, P.
Conference Paper
1995Non-Markovian polarization decay in semiconductor quantum wells by three-beam four-wave mixing
Löser, F.; Klatt, D.; Pantke, K.-H.; Leo, K.; Bakker, H.; Shah, J.; Köhler, K.
Journal Article
1995Realization and modeling of a pseudomorphic (GaAs(1-x)Sb(x)-In(y)Ga(1-y)As)/GaAs bilayer-quantum well
Peter, M.; Winkler, K.; Maier, N.; Herres, N.; Wagner, J.; Fekete, D.; Bachem, K.H.; Richards, D.
Journal Article
1995Spin-split cyclotron resonance and spatial distribution of interacting electrons
Hu, C.M.; Friedrich, T.; Batke, E.; Köhler, K.; Ganser, P.
Journal Article
1995Ultrafast coherent control and destruction of excitons in quantum wells
Heberle, A.P.; Baumberg, J.J.; Köhler, K.
Journal Article
1995Ultrafast far-infrared GaAs/AlGaAs photon drag detector in microwave transmission line topology.
Sigg, H.; Kwakernaak, M.H.; Margotte, A.B.; Erni, D.; Son, P. van; Köhler, K.
Journal Article
1995X(5) signature in th four-wave-mixing signal from a GaAs/Al(0.3)Ga(0.7)As superlattice
Bartels, G.; Axt, V.M.; Victor, K.; Stahl, A.; Leisching, P.; Köhler, K.
Journal Article
1994Dependence of resonant electron and hole tunnelling times between quantum wells on barrier thickness.
Heberle, A.P.; Zhou, X.Q.; Tackeuchi, A.; Rühle, W.W.; Köhler, K.
Journal Article
1994Detection of Bloch oscillations in a semiconductor superlattice by time-resolved terahertz spectroscopy and degenerate four-wave mixing.
Waschke, C.; Leisching, P.; Bolivar, P.H.; Schwedler, R.; Brüggemann, F.; Roskos, H.G.; Leo, K.; Kurz, H.; Köhler, K.
Journal Article
1994Direct observation of resonant tunneling dynamics in high magnetic fields
Heberle, A.P.; Oestreich, M.; Haacke, S.; Rühle, W.W.; Maan, J.C.; Köhler, K.
Journal Article
1994Exciton absorption saturation by phase-space filling: Influence of carrier temperature and density
Hunsche, S.; Leo, K.; Kurz, H.; Köhler, K.
Journal Article
1994Experimental realization of the Bloch oscillator in a semiconductor superlattice.
Waschke, C.; Roskos, H.G.; Leo, K.; Kurz, H.; Köhler, K.
Journal Article
1994Femtosecond intersubband relaxation in GaAs quantum wells
Hunsche, S.; Leo, K.; Kurz, H.; Köhler, K.
Journal Article
1994Investigation of Bloch oscillations in a GaAs/AlGaAs superlattice by spectrally resolved four-wave mixing.
Leisching, P.; Bolivar, P.H.; Schwedler, R.; Leo, K.; Kurz, H.; Köhler, K.; Ganser, P.
Journal Article
1994Photovoltaic quantum well intersubband infrared detectors by internal electric fields
Schneider, H.; Ehret, S.; Larkins, E.C.; Ralston, J.D.; Schwarz, K.; Koidl, P.
Conference Paper
1994Time-resolved study of depashing mechanismen of excitons in GaAs/Al(x)Ga(1-x)As quantum-well structures
Bakker, H.J.; Leo, K.; Shah, J.; Köhler, K.
Journal Article
1993Alpha-factor improvements in high-speed p-doped In0.35Ga0.65As/GaAs MQW lasers
Schönfelder, A.; Weisser, S.; Ralston, J.D.; Rosenzweig, J.
Conference Paper
1993Coupling of exciton transitions associated with different quantum-well islands
Koch, M.; Feldmann, J.; Göbel, E.O.; Thomas, P.; Shah, J.; Köhler, K.
Journal Article
1993Enhancement of the in-plane effective mass of electrons in modulation-doped In(x)Ga(1-x)As quantum wells due to confinement effects
Hendorfer, G.; Seto, M.; Ruckser, H.; Jantsch, W.; Helm, M.; Brunthaler, G.; Jost, W.; Obloh, H.; Köhler, K.; As, D.J.
Journal Article
1993Hydrogen passivation of shallow impurities in GaAs/AlGaAs quantum wells.
Harris, C.I.; Stutzmann, M.; Köhler, K.
Journal Article
1993Optical spectroscopy of shallow impurity states in semiconductor quantum wells.
Monemar, B.; Holtz, P.O.; Harris, C.I.; Bergmann, J.P.; Kalt, H.; Sundaram, M.; Merz, J.L.; Gossard, A.C.; Köhler, K.; Schweizer, T.
Journal Article
1993Optimized performance of quantum well intersubband infrared detectors - photovoltaic versus photoconductive operation.
Schneider, H.
Journal Article
1993Quantum beats versus polarization interference - an experimental distinction
Koch, M.; Feldmann, J.; Plessen, G. von; Göbel, E.O.; Thomas, P.; Köhler, K.
Book Article
1993Space-charge effects in photovoltaic double barrier quantum well infrared detectors.
Schneider, H.; Larkins, E.C.; Ralston, J.D.; Schwarz, K.; Fuchs, F.; Koidl, P.
Journal Article
1993Strain relaxation in high-speed p-i-n photodetectors with In0.2Ga0.8As/GaAs multiple quantum wells.
Bender, G.; Larkins, E.C.; Schneider, H.; Ralston, J.D.; Koidl, P.
Journal Article
1993Terahertz radiation from coherent electron oscillations in a double-quantum-well structure.
Roskos, H.G.; Nuss, M.C.; Shah, J.; Leo, K.; Miller, D.A.B.; Schmitt-Rink, S.; Köhler, K.
Book Article
1992Coherent submillimeter-wave emission from charge oscillations in a double-well potential
Roskos, H.G.; Nuss, M.C.; Miller, D.A.B.; Köhler, K.; Leo, K.; Schmitt-Rink, S.; Shah, J.
Journal Article
1992The exciton formation time in a GaAs quantum well
Eccleston, R.; Strobel, R.; Kuhl, J.; Köhler, K.
Conference Paper
1992Grating coupling and intersubband absorption at 10mym in GaAs/AlXGa1-XAs infrared quantum well waveguides.
Bittner, P.; Fleissner, J.; Dischler, B.; Gallagher, D.F.G.; Koidl, P.; Ralston, J.D.
Journal Article
1992High-speed InGaAs/GaAs multiple quantum well electrooptical modulator.
Wingen, G.; Zumkley, S.; David, G.; Larkins, E.C.; Ralston, J.D.; Jäger, D.
Conference Paper
1992Low temperature photoluminescence topography of MOCVD-grown InGaP, AlGaAs and AlGaAs/GaAs single quantum wells.
As, D.J.; Korf, S.; Wang, Z.M.; Bachem, K.H.; Jantz, W.; Windscheif, J.
Conference Paper
1992Novel molecular-beam epitaxially grown GaAs/AlGaAs quantum well structures for infrared detection and integrated optics at 3-5 and 8-12 mym.
Schneider, H.; Kheng, K.; Fuchs, F.; Bittner, P.; Dischler, B.; Gallagher, D.F.G.; Koidl, P.; Ralston, J.D.
Journal Article
1992Optical dephasing of light-hole excitons in GaAs single quantum wells
Honold, A.; Saku, T.; Horikoshi, Y.; Köhler, K.
Journal Article
1992Optical spectroscopy of bound excitons in AlGaAs/GaAs quantum wells
Monemar, B.; Holtz, P.O.; Bergmann, J.P.; Harris, C.; Sundaram, M.; Merz, J.P.; Gossard, A.C.; Schweizer, T.; Kalt, H.; Köhler, K.
Conference Paper
1992Performance comparison of high-speed GaAs/Al0.25Ga0.75As and In0.35Ga0.65As/GaAs multiple quantum well lasers suitable for monolithic integration.
Weisser, S.; Esquivias, I.; Gallagher, D.F.G.; Tasker, P.J.; Fleissner, J.; Larkins, E.C.; Ralston, J.D.; Rosenzweig, J.
Conference Paper
1992Quantum beats of excitons in quantum wells
Schmitt-Rink, S.; Damen, T.; Göbel, E.O.; Köhler, K.; Leo, K.; Schäfer, W.; Shah, J.
Journal Article
1992Resonances in tunnelling between quantum wells
Heberle, A.P.; Rühle, W.W.; Alexander, M.G.W.; Köhler, K.
Journal Article
1992Screening and correlation effects in degenerately center doped GaAs/AlGaAs single quantum wells.
Harris, C.I.; Kalt, H.; Monemar, B.; Köhler, K.
Journal Article
1992Special nuclear magnetic resonance techniques.
Ackermann, H.; Bagraev, N.T.; Harley, R.T.; Schneider, J.
Book Article
1992Transport asymmetry and photovoltaic response in -AlGa-As/AlAs/GaAs/-AlGa-As single-barrier quantum-wel infrared detectors.
Schneider, H.; Kheng, K.; Ramsteiner, M.; Ralston, J.D.; Fuchs, F.; Koidl, P.
Journal Article
1992Tunneling of electrons and holes in asymmetric double quantum well structures.
Kuhl, J.; Strobel, R.; Eccleston, R.; Köhler, K.
Journal Article
1991Coherent oscillations of a wave packet in a semiconductor double-quantum-well structure
Damen, T.C.; Göbel, E.O.; Köhler, K.; Leo, K.; Schäfer, W.; Schmitt-Rink, S.; Shah, J.
Conference Paper
1991Competition between tunneling and exciton formation for photoexcited carriers in asymmetric double quantum wells.
Kuhl, J.; Strobel, R.; Eccleston, R.; Köhler, K.
Conference Paper
1991Dynamics of free and bound excitons in center-doped GaAs/AsGaAs quantum wells.
Monemar, B.; Kalt, H.; Harris, C.I.; Bergman, J.P.; Holtz, P.O.; Sundaram, M.; Merz, J.L.; Gossard, A.C.; Schweizer, T.; Köhler, K.
Journal Article
1991Grating coupled GaAs/AlGaAs waveguide structures for 10-mym detectors.
Bittner, P.; Fleissner, J.; Gallagher, D.F.G.; Ralston, J.D.
Conference Paper
1991Hole-tunneling dynamics in biased GaAs/Al(0.35)Ga(0.65)As asymmetric double quantum wells
Nido, M.; Alexander, M.G.W.; Rühle, W.W.; Köhler, K.
Journal Article
1991Intersubband absorption and infrared photodetection at 3.5 and 4.2 mym in GaAs quantum wells
Dischler, B.; Fuchs, F.; Koidl, P.; Ralston, J.D.; Schneider, H.
Journal Article
1991Intersubband transitions in partially interdiffused GaAs/AlGaAs multiple quantum-well structures
As, D.J.; Brandt, G.; Dischler, B.; Koidl, P.; Maier, M.; Ralston, J.D.; Ramsteiner, M.
Journal Article
1991Lasing characteristics of InGaAs/InGaAsP MQW structures grown by low-pressure MOVPE
Rosenzweig, M.; Ebert, W.; Franke, D.; Grote, N.; Sartorius, B.; Wolfram, P.
Conference Paper, Journal Article
1991Low temperature infrared measurements and photo-induced persistent changes of intersubband transitions in GaAs/AlGaAs multiple quantum wells
Dischler, B.; Hiesinger, P.; Koidl, P.; Maier, M.; Ralston, J.D.; Ramsteiner, M.
Conference Paper
1991Measurement of the exciton-formation time and the electron- and hole-tunneling times in a double-quantum-well structure
Strobel, R.; Eccleston, R.; Kuhl, J.; Köhler, K.
Journal Article
1991Photolumineszenz-Untersuchungen an GaAs/AlxGa1-xAs-Heterostrukturen
Korf, S.
Thesis
1991Photovoltaic intersubband detectors for 3-5 mym using GaAs quantum wells sandwiched between AlAs tunnel barriers.
Dischler, B.; Fuchs, F.; Koidl, P.; Ralston, J.D.; Schneider, H.; Schwarz, K.
Journal Article
1991Quantum beats of excitons in quantum wells
Leo, K.; Shah, J.; Schmitt-Rink, S.; Schäfer, W.; Müller, J.F.; Köhler, K.; Damen, T.C.; Göbel, E.O.
Journal Article
1991Quantum-Well interdiffusion for integrated photonics.
Eastman, L.F.; Dischler, B.; Ralston, J.D.
Conference Paper
1991Resonant and nonresonant tunneling in GaAs/AlxGa1-xAs asymmetric double quantum wells.
Alexander, M.G.W.; Nido, M.; Rühle, W.W.; Köhler, K.
Journal Article
1991Terahertz absorption between split subbands in coupled Quantum Wells.
Cunningham, J.; Köhler, K.; Nuss, M.C.; Roskos, H.; Shah, J.; Tell, B.
Conference Paper
1991Time-resolved optical investigation of tunneling of carriers through single AlxGa1-xAs barriers
Rühle, W.W.; Heberle, A.P.; Alexander, M.G.W.; Nido, M.; Köhler, K.
Journal Article
1991Variations of the confining potential of doped AlGaAs/GaAs Quantum Wells with the photon energy of excitation.
Harris, C.I.; Monemar, B.; Brunthaler, G.; Kalt, H.; Schweizer, T.; Köhler, K.
Journal Article
1991Vertically compact 15 GHz GaAs/AlGaAs multiple quantum well laser grown by molecular beam epitaxy.
Ralston, J.D.; Tasker, P.J.; Zappe, H.P.; Esquivias, I.; Fleissner, J.; Gallagher, D.F.G.
Journal Article
1990Comparative investigation of the interface quality of GaAs/AlGaAs quantum wells grown by MBE.
Schweizer, T.; Bachem, K.H.; Voigt, A.; Strunk, H.P.; Ganser, P.; Köhler, K.; Maier, M.; Wagner, J.
Journal Article
1990Electron and hole tunneling transfer times in GaAs/Al0.35Ga0.65As asymmetric double quantum wells under electric field.
Nido, M.; Alexander, M.G.W.; Rühle, W.E.; Köhler, K.
Conference Paper
1990Electron tunneling via gamma- and chi-states in GaAs/Al0.35Ga0.65As double quantum well structures
Alexander, M.G.W.; Nido, M.; Rühle, W.W.; Reimann, K.; Ploog, K.; Köhler, K.
Journal Article
1990Femtosecond transient-grating experiments in quantum wells
Schmitt-Rink, S.; Müller, J.F.; Damen, T.C.; Ganser, P.; Göbel, E.O.; Köhler, K.; Leo, K.; Schäfer, W.; Shah, J.
Conference Paper
1990Nonresonant electron and hole tunneling times in GaAs/Al0.35Ga0.65As asymmetric double quantum wells.
Nido, M.; Alexander, M.G.W.; Rühle, W.W.; Schweizer, T.; Köhler, K.
Journal Article
1990Quantum beats of free and bound excitons in GaAs/Al(x)Ga(1-x)As quantum wells
Leo, K.; Shah, J.; Köhler, K.; Damen, T.C.
Journal Article
1990Quantum beats of light hole and heavy hole excitons in quantum wells.
Damen, T.C.; Köhler, K.; Leo, K.; Shah, J.
Journal Article
1990Resonant-tunneling transfer times between asymmetric GaAs/Al(0.35)Ga(0.65)As double quantum wells
Alexander, M.G.W.; Nido, M.; Rühle, W.W.; Köhler, K.
Journal Article
1990Tunneling in semiconductor heterostructures studied by subpicosecond four-wave mixing.
Damen, T.C.; Ganser, P.; Göbel, E.O.; Köhler, K.; Leo, K.; Shah, J.
Journal Article
1989Gamma- and X-band contributions to nonresonant tunneling in GaAs/Al0.35Ga0.65As double quantum wells.
Alexander, M.G.W.; Nido, M.; Reimann, K.; Rühle, W.W.; Köhler, K.
Journal Article
1989Strained-layer InGaAs-AlGaAs graded-index separate confinement heterostructure single quantum well lasers grown by molecular beam epitaxy.
Offsey, S.D.; Schaff, W.J.; Tasker, P.J.; Eastman, L.F.; Ennen, H.
Journal Article
1989Tunneling between two quantum wells - In0.35Ga0.47As/InP versus GaAs/Al0.35Ga0.65As.
Alexander, M.G.W.; Nido, M.; Rühle, W.W.; Sauer, R.; Köhler, K.; Tsang, W.T.
Journal Article
1986Effect of barrier configuration on excitonic recombination in Ga.47In.53As/Al.48In.52As multi quantum well structures
Stolz, W.; Knecht, J.; Ploog, K.; Wagner, J.
Journal Article
1986Excitonic transitions in quantum wells composed of either binary or ternary III-V semiconductors grown by molecular beam epitaxy
Miguel, J.L. de; Ohmori, Y.; Stolz, W.; Tapfer, L.; Ploog, K.; Wagner, J.
Conference Paper
1985Free-exciton luminescence in GaSb quantum wells confined by short-period AISb-GaSb superlattices
Ploog, K.; Ohmori, Y.; Okamoto, H.; Stolz, W.; Wagner, J.
Journal Article
1985Luminescence excitation spectroscopy on Ga(0.47)In(0.53)As/Al(0.48)In(0.52)As quantum-well heterostructures
Stolz, W.; Ploog, K.; Wagner, J.
Journal Article