Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
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
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
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
2008Influence of doping profiles on coherent acoustic phonon detection and generation in semiconductors
Hudert, F.; Bartels, A.; Dekorsky, T.; Köhler, K.
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
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
2006Micro-cavity organic light emitting diodes for biochip applications
Roma, G.; Belardini, A.; Michelotti, F.; Danz, N.; Pace, A.; Sarto, F.; Montereali, R.M.
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
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
2005Connected fit algorithm for optical investigations of large area coatings
Gnehr, W.-M.; Hartung, U.; Kopte, T.
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
2005The evolution of the electric field in an optically excited semiconductor superlattice
Lisauskas, A.; Blöser, C.; Hummel, A.B.; Sachs, R.; Roskos, H.G.; Juozapavicius, A.; Valusis, G.; 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
2005Time-resolved photocurrent spectroscopy of the evolution of the electric field in optically excited superlattices and the prospects for Bloch gain
Lisauskas, A.; Blöser, C.; Sachs, R.; Roskos, H.G.; Juozapavicius, A.; Valusis, G.; Köhler, K.
Journal Article
2004Combination of X-ray reflectometry and optical spectroscopy as a new tool for thin films parameter determination
Pflug, A.; Ruske, F.; Sittinger, V.; Werner, W.; Szyszka, B.
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
2004Optical and acoustic intersubband plasmons
Rösch, M.; Batke, E.; Köhler, K.; Ganser, P.
Journal Article
2004Wave-function reconstruction in a graded semiconductor superlattice
Lyssenko, V.G.; Hvam, J.M.; Meinhold, D.; Köhler, K.; Leo, K.
Journal Article
2001In-situ monitoring of optical coatings on architectural glass and comparison of the accuracy of the layer thicknesses attainable with ellipsometry and photometry
Vergöhl, M.; Malkomes, N.; Matthee, T.; Bräuer, G.; Richter, U.; Nickol, F.-W.; Bruch, J.
Conference Paper, Journal Article
2001Quantitative Messung induzierter Hautrötungen mittels optischer Reflexionsspektroskopie. Methodik und klinische Anwendung
Smesny, S.; Riemann, S.; Riehemann, S.; Bellemann, M.E.; Sauer, H.
Journal Article
1993Point defects in silicon carbide.
Schneider, J.; Maier, K.
Journal Article
1992Effect of photoexcitation on the surface band bending in delta-doped GaAs:Si/Al0.33Ga0.67As double heterostructures.
Richards, D.; Wagner, J.; Fischer, A.; Ploog, K.
Journal Article
1990Electronic structure of single delta-doped GaAs layers studied by photoluminescence and raman spectroscopy.
Ploog, K.; Wagner, J.
Conference Paper
1989Optical spectroscopy of impurity levels in GaAs
Wagner, J.
Journal Article
1989The spectroscopic evidence for the identity of EL2 and the AsGa antisite in As-grown GaAs.
Kaufmann, U.
Book Article