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Number of items at this level: 65.

2011

Vierheilig, Clemens (2011) Hochortsaufgelöste elektro-optische Charakterisierung von InGaN-GaN-LED-Strukturen. Dissertationsreihe der Fakultät für Physik der Universität Regensburg 15, PhD, Universität Regensburg.

2010

Wiesmann, Christopher (2010) Nano-structured LEDs – Light extraction mechanisms and applications. Dissertationsreihe der Fakultät für Physik der Universität Regensburg 11, PhD, Universität Regensburg.

2009

Braun, Harald (2009) Multidimensionale Charakterisierung der Modendynamik von (Al,In)GaN Laserdioden. Dissertationsreihe der Fakultät für Physik der Universität Regensburg 6, PhD, Universität Regensburg.

2007

Witzigmann, B., Laino, V., Roemer, F., Lauterbach, C., Schwarz, Uli, Rumbolz, C., Schillgalies, M., Lell, A. and Härle, V. (2007) Analysis of substrate modes in GaN/InGaN Lasers. SPIE proceedings 6468, 64680Q. Fulltext not available.

Kojima, K., Funato, M., Kawakami, Y., Braun, Harald, Schwarz, Uli, Nagahama, S. and Mukai, T. (2007) Comparison between optical gain spectra of InxGa1-xN/In0.02Ga0.98N laser diodes emitting at 404 nm and 470 nm. phys. stat. sol. (a) 204, p. 2108. Fulltext not available.

Braun, Harald, Lauterbach, C., Schwarz, Uli, Laino, V., Witzigmann, B., Rumbolz, C., Schillgalies, M., Lell, A. and Härle, V. (2007) Experimental and Theoretical Study of Substrate Modes in (Al,In)GaN Laser Diodes. phys. stat. sol. (c) 4, p. 2772. Fulltext not available.

Laino, V., Roemer, F., Witzigmann, B., Lauterbach, C., Schwarz, Uli, Rumbolz, C., Schillgalies, M., Furitsch, M., Lell, A. and Här, V. (2007) Experimental and theoretical study of substrate modes in (Al,In)GaN laser diodes. IEEE J. Quantum Electronics 43, p. 16. Fulltext not available.

Schwarz, Uli, Braun, Harald, Kojima, K., Kawakami, Y., Nagahama, S. and Mukai, T. (2007) Interplay of built-in potential and piezoelectric field on carrier recombination in green light emitting InGaN quantum wells. Applied Physics Letters 91, p. 123503. Fulltext not available.

Schwarz, Uli, Braun, Harald, Kojima, K., Funato, M., Kawakami, Y., Nagahama, S. and Mukai, T. (2007) Investigation and comparison of optical gain spectra of (Al,In)GaN laser diodes emitting in the 375 nm to 470 nm spectral range. SPIE proceedings 6485, p. 648506. Fulltext not available.

Vierheilig, Clemens, Braun, Harald, Schwarz, Uli, Wegscheider, Werner, Baur, E., Strauß, U. and Härle, V. (2007) Lateral Diffusion of Photogenerated Carriers in InGaN/GaN-heterostructures Observed by PL Measurements. phys. stat. sol. (c) 4, p. 2362. Fulltext not available.

Laubsch, A., Sabathil, M., Bruederl, G., Wagner, J., Strassburg, M., Baur, E., Braun, Harald, Schwarz, Uli, Lell, A., Lutgen, S., Linder, N., Oberschmid, R. and Hahn, B. (2007) Measurement of the internal quantum efficiency of InGaN quantum wells. Proc. SPIE 6486, 64860J. Fulltext not available.

Swietlik, T., Franssen, G., Czernecki, R., Leszczynski, M., Skierbiszewski, C., Grzegory, I., Bohdan, R., Trzeciakowski, W., Suski, T., Perlin, P., Lauterbach, C. and Schwarz, Uli (2007) Mode dynamics of high power (InAl)GaN based laser diodes grown on bulk GaN substrate. Journal of Appli ed Physics 101, 083109. Fulltext not available.

Schwarz, Uli and Witzigmann, B. (2007) Nitride Semiconductor Devices. In: Optical properties of edge-emitting lasers: measurement and simulation. Wiley-VCH. Fulltext not available.

Schwarz, Uli and Kneissl, M. (2007) Nitride emitters go nonpolar. phys. stat. solidi (RRL) 1, A44. Fulltext not available.

Kojima, K., Schwarz, Uli, Funato, M., Kawakami, Y., Nagahama, S. and Mukai, T. (2007) Optical gain spectra for near UV to aquamarine (Al,In)GaN laser diodes. Optics Express 15, p. 7730. Fulltext not available.

Schwarz, Uli (2007) Pattern formation and directional and spatial ordering of edge dislocations in bulk GaN: Micro-photoluminescence spectra and continuum elastic calculations. Physical Review B 75, p. 245213.

Gmeinwieser, N. and Schwarz, Uli (2007) Strain of single edge dislocations in bulk GaN. Physica Status Solidi (B). Fulltext not available.

Vierheilig, Clemens, Braun, Harald, Schwarz, Uli, Wegscheider, Werner, Baur, E., Strauß, U. and Härle, V. (2007) Temperature- and excitation density dependency of photoluminescence spectra in InGaN/GaN-heterostructures. phys. stat. sol. (c) 4, p. 179. Fulltext not available.

2006

Flossmann, Florian (2006) Singularitäten von Phase und Polarisation des Lichts. PhD, Universität Regensburg.

Sturm, Evi (2006) Optische Verstärkungsmessungen von (In, Al)GaN Diodenlasern. PhD, Universität Regensburg.

Engl, Karl, Beer, Martin, Gmeinwieser, Nikolaus, Schwarz, Ulrich, Zweck, Josef, Wegscheider, Werner, Miller, S., Miler, A., Lugauer, H., Brüderl, G., Lell, A. and Härle, V. (2006) Influence of an in situ-deposited SiN_x intermediate layer inside GaN and AlGaN layers on SiC substrates. Journal of Crystal Growth 289 (1), pp. 6-13. Fulltext restricted.

Witzigmann, B., Laino, V., Luisier, M., Schwarz, Uli, Feicht, Georg, Wegscheider, Werner, Engl, K., Furitsch, M., Leber, A., Lell, A. and Härle, V. (2006) Microscopic analysis of optical gain in InGaN/GaN quantum wells. Applied Physics Letters 88, 021104. Fulltext restricted.

Witzigmann, B., Laino, V., Luisier, M., Schwarz, Uli, Fischer, H., Feicht, Georg, Wegscheider, Werner, Rumbolz, C., Lell, A. and Härle, V. (2006) Analysis of temperature dependent optical gain in GaN/InGaN quantum well structures. IEEE Phot. Tech. Lett. 18, p. 1600. Fulltext not available.

Kojima, K., Funato, M., Kawakami, Y., Nagahama, S., Kumai, T., Braun, Harald and Schwarz, Uli (2006) Gain suppression phenoma observed in InGaN QW laser diodes emitting at 470 nm. Applied Physics Letters 89, p. 241127. Fulltext not available.

Witzigmann, B., Laino, V., Luisier, M., Feicht, Georg and Schwarz, Uli (2006) Simulation and design of optical gain in In(Al)GaN/GaN short wavelength lasers. SPIE proceedings 6184, 61840E. Fulltext not available.

Flossmann, Florian, Schwarz, Uli, Maier, Max and Dennis, M. (2006) Stokes parameters in the unfolding of an optical vortex through a birefringent crystal. Optics Express 14, p. 11402. Fulltext not available.

Schwarz, Uli, Lauterbach, C., Schillgalies, M., Rumbolz, C., Furitsch, M., Lell, A. and Härle, V. (2006) Time-resolved scanning near-field microscopy of InGaN laser diode dynamics. SPIE proceedings 6184, 61840K. Fulltext not available.

Pindl, M. and Schwarz, Uli (2006) Waveguide mode dynamics of blue laser diodes. phys. stat. sol. (a) 203, p. 1787. Fulltext not available.

2005

Schödl, Thomas (2005) Verlustmechanismen und Degradation von blauen (Al,In)GaN Laserdioden. PhD, Universität Regensburg.

Manz, T. and Schwarz, Uli (2005) Erratum to: Stimulated Stokes and anti-Stokes Raman scattering in liquid acetone with a Bessel beam. Optics Communications 249, p. 363. Fulltext not available.

Schoedl, T., Schwarz, Uli, Kümmler, V., Furitsch, M., Leber, A., Miler, A., Lell, A. and Härle, V. (2005) Facet degradation of GaN heterostructure laser diodes. Journal of Appli ed Physics 97, p. 123102. Fulltext not available.

Schwarz, Uli, Bandres, M. and Gutierrez-Vega, J. (2005) Formation of Ince-Gaussian modes in a stable laser oscillator. SPIE proceedings 5708, p. 124. Fulltext not available.

Schwarz, Uli, Pindl, M., Sturm, Evi, Furitsch, M., Leber, A., Miller, S., Lell, A. and Härle, V. (2005) Influence of ridge geometry on lateral mode stability of (In/Al)GaN laser diodes. phys. stat. sol. (a) 202, p. 261. Fulltext not available.

Flach, S. and Schwarz, Uli (2005) Lokal angeregt, ganz diskret. Physik Journal 4, p. 15. Fulltext not available.

Schwarz, Uli, Pindl, M., Wegscheider, Werner, Eichler, C., Scholz, F., Furitsch, M., Leber, A., Miller, S., Lell, A. and Härle, V. (2005) Near-field and far-field dynamics of (Al,In)GaN laser diodes. Applied Physics Letters 86, p. 161112. Fulltext not available.

Pindl, M. (2005) Near-field and far-field dynamics of (Al,In)GaN laser diodes. SPIE proceedings 5738, p. 229. Fulltext not available.

Flossmann, Florian, Schwarz, Uli and Maier, Max (2005) Optical vortices in a Laguerre-Gaussian LG10 beam. J. Mod. Optics 52, p. 1009. Fulltext not available.

Flossmann, Florian, Schwarz, Uli, Maier, Max and Dennis, M. (2005) Polarization singularities from unfolding an optical vortex through a birefringent crystal. Physical Review Letters 95, p. 253901.

Flossmann, Florian, Schwarz, Uli and Maier, Max (2005) Propagation dynamics of optical vortices in Laguerre-Gaussian beams. Optics Communications 250, p. 218. Fulltext not available.

Gmeinwieser, N., Gottfriedsen, P., Schwarz, Uli, Wegscheider, Werner, Clos, R., Krtschil, A., Krost, A., Weimar, A., Brüderl, G., Lell, A. and Härle, V. (2005) Single dislocation induced strain in GaN. Journal of Appli ed Physics 98, p. 116102. Fulltext not available.

2004

Gmeinwieser, N., Engl, K., Gottfriedsen, P., Schwarz, Uli, Zweck, Josef, Wegscheider, Werner, Miller, S., Lugauer, H., Leber, A., Lell, A. and Härle, V. (2004) Correlation of strain, wing tilt, dislocation density, and photoluminescence in epitaxial lateral overgrown GaN on SiC substrate. Journal of Appli ed Physics 96, J. Appl. Phys.. Fulltext not available.

Schwarz, Uli, Sturm, Evi, Wegscheider, Werner, Kümmler, V., Lell, A. and Härle, V. (2004) Excitonic signature in gain and carrier induced change of refractive index spectra of (In,Al)GaN quantum well lasers. Applied Physics Letters 85, p. 1475. Fulltext not available.

Schoedl, T., Schwarz, Uli, Miller, S., Leber, A., Furitsch, M., Lell, A. and Härle, V. (2004) Facet degradation of (Al,In)GaN laser diodes. phys. stat. sol. (a) 201, p. 2635. Fulltext not available.

Bandres, M., Schwarz, Uli and Gutierrez-Vega, J. (2004) Ince-Gaussian Beams: The third family of eigenmodes of stable laser resonators. Optics and Photonics News, p. 36. Fulltext not available.

Schwarz, Uli, Schoedl, T., Kümmler, V., Lell, A. and Härle, V. (2004) Laser Diode Facet Degradation Study. MRS Proceeding 798, Y11.10.1. Fulltext not available.

Schwarz, Uli, Wegscheider, Werner, Lell, A. and Härle, V. (2004) Nitride-based in-plane laser diodes with vertical current path. Proceedings of the SPIE 5365, p. 267. Fulltext not available.

Schwarz, Uli, Bandres, M. and Gutierrez-Vega, J. (2004) Observation of Ince-Gaussian modes in stable resonators. Optics Lett. 29, p. 1870. Fulltext not available.

Manz, T. and Schwarz, Uli (2004) Stimulated Stokes and anti-Stokes Raman scattering in liquid acetone with a Bessel beam. Optics Communications 235, p. 201. Fulltext not available.

Gmeinwieser, N., Engl, K., Schwarz, Uli, Zweck, Josef, Wegscheider, Werner, Miller, S., Leber, A., Lell, A. and Härle, V. (2004) Strain, wing tilt and Photoluminescence in ELOG GaN on SiC substrates. phys. stat. sol. (a) 201, p. 2760. Fulltext not available.

2003

Schwarz, Uli, Sturm, Evi, Wegscheider, Werner, Kümmler, V., Lell, A. and Härle, V. (2003) Gain spectra and current-induced change of refractice index in (In/Al)GaN diode lasers. phys. stat. sol. (a) 200, p. 143. Fulltext not available.

Schwarz, Uli, Schuck, P., Mason, M., Grober, R., Roskowsky, A., Einfeldt, S. and Davis, R. (2003) Microscopic mapping of strain relaxation in uncoalesced pendeoepitaxial GaN on SiC. Physical Review B 67, p. 45321.

Schwarz, Uli, Sturm, Evi, Wegscheider, Werner, Kümmler, V., Lell, A. and Härle, V. (2003) Optical gain, carrier-induced phase shift, and linewidth enhancement factor in InGaN quantum well lasers. Applied Physics Letters 83, p. 4095. Fulltext not available.

Schwarz, Uli, Zeitler, J., Baier, Jürgen, Sogomonian, S. and Maier, Max (2003) Stimulated anti-Stokes Raman scattering with Bessel beams in hydrogen gas. J. Opt. Soc. Am. B 20, p. 1750. Fulltext not available.

2002

Balzer, Herbert (2002) Entwicklung und Anwendung bildgebender Verfahren für die Messung der elektrischen Feldstärke mit Hilfe der Lochbrennspektroskopie. PhD, Universität Regensburg.

Kümmler, V., Brüderl, G., Bader, S., Miller, S., Weimar, A., Lell, A., Härle, V., Schwarz, Uli, Gmeinwieser, N. and Wegscheider, Werner (2002) Degradation Analysis of InGaN Laser Diodes. phys. stat. sol. (a) 194, p. 419. Fulltext not available.

Bittner, B., Scherm, M., Schoedl, T., Tyroller, T., Schwarz, Uli and Maier, Max (2002) Phonon-polariton damping by low-frequency excitations in lithium tantalate investigated by spontaneous and stimulated Raman scattering. J. Phys.: Condes. Matter 14, p. 9013. Fulltext not available.

Schwarz, Uli, Sogomonian, S. and Maier, Max (2002) Propagation dynamics of phase dislocations embedded in a Bessel light beam. Optics Communications 208, p. 255. Fulltext not available.

2001

Kilger, Robert (2001) Untersuchung der Relaxation von Photofrin-generiertem Singulett-Sauerstoff in Lösungen und in vitro. PhD, Universität Regensburg.

Sogomonian, S., Schwarz, Uli and Maier, Max (2001) Phase front transformation of a first-order Bessel beam in Raman-resonant four-wave mixing. J. Opt. Soc. Am. B 18, p. 497. Fulltext not available.

Roskowsky, A., Miraglia, P., Preble, E., Einfeldt, S., Stiles, T., Davis, R., Schuck, J., Grober, R. and Schwarz, Uli (2001) Strain and dislocation reduction in maskless pendeo-epitaxy GaN thin films. phys. stat. sol. (a) 188, p. 729. Fulltext not available.

2000

Schwarz, Uli, Niggl, L. and Maier, Max (2000) Gain guiding in stimulated scattering processes with hollow Bessel pump beams. Optics Communications 181, p. 413. Fulltext not available.

1999

Schwarz, Uli, English, L. and Sievers, A. (1999) Experimental Generation and Observation of Intrinsic Localized Spin Wave Modes in an Antiferromagnet. Physical Review Letters 83, p. 223.

1998

Maier, Max (1998) Damping mechanisms of phonon polaritons, exploited by stimulated Raman gain measurements. Physical Review B 58, p. 766.

1997

Schwarz, Uli and Maier, Max (1997) Asymmetric Raman lines caused by an anharmonic lattice potential in lithium niobate. Physical Review B 55, p. 11041.

1996

Maier, Max (1996) Frequency dependence of phonon-polariton damping in lithium niobate. Physical Review B 53, p. 5074.

This list was generated on Mon Oct 7 08:09:09 2024 CEST.
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