Professor Dr. rer. nat. Udo Behn
Lehrgebiete:
Physik/ Thermodynamik/ Lasertechnik
Kontakt:
Fachhochschule Schmalkalden
Fakultät Maschinenbau
Blechhammer 4-9
98574 Schmalkalden
Tel.: 03683 / 688-2101
Fax: 03683 / 688-2499
Raum: D 0209
Kontaktformular
Lehre MB:
Bachelorstudiengang: Physik I, Physik II, Lasertechnik
Masterstudiengang: Methodik des wissenschaftlichen Arbeitens
Lehre WIW:
Labore:
Forschung:
Polarisationsabhängige Untersuchungen an nicht-polarem GaN und anderen Gruppe III - Nitriden mittels Modulationsspektroskopie
Veröffentlichungen 2000-2007:
U. Behn, P. Misra, H.T. Grahn, B. Immer, S. Nakamura, S.P. DenBaars, and J.S. Speck, "Polarization anisotropy in nonpolar oriented GaN films studied by polarized photoreflectance spectroscopy", phys. stat. sol (a) 204, 299-303 (2007)
C. Roder, S. Einfeld, S. Figge, T. Paskova, D. Hommel, P.P. Paskov, D. Monemar, U. Behn, B.A. Haskell, P.T. Fini, and S. Nakamura, "Stress and wafer bending of a-plane GaN on r-plane sapphire substrates", J. Appl. Phys. 100, 103511 (2006)
P. Misra, U. Behn, O. Brandt, H.T. Grahn, B. Imer, S. Nakamura, S.P. DenBaars, and J. Speck "Polarization anisotropy in GaN films for different nonpolar orientations studied by polarized photoreflectance spectroscopy", Appl. Phys. Lett 88, 161920 (2006)
U. Behn, P. Misra, H.T. Grahn, B. Imer, S. Nakamura, S.P. DenBaars, and J.S. Speck, "Polarization anisotropy in nonpolar GaN films studied by polarized photoreflectance spectroscopy" Scientific Report des Paul-Drude-Institutes Berlin 2005
U. Behn, O. Brandt, and H.T. Grahn, "Relation between photoreflectance excitation and absorption spectra for GaAs and GaN films" J. Appl. Phys. 93, 221-225 (2003)
U. Behn, A. Thamm, O. Brandt, and H.T. Grahn, "Line Shape Analysis of Photoreflectance Excitation Spectra of GaN Films on 6H-SiC(0001)" phys. stat. sol. (a) 192, 144-150 (2002)
U. Behn, A. Thamm, O. Brandt, and H.T. Grahn, "Optimization of the signal-to-noise ratio for photoreflectance spectroscopy" , J. Appl. Phys. 90, 5081-85 (2001)
U. Behn, A. Thamm, O. Brandt, and H.T. Grahn, "Temperature Dependence of the Photoreflectance Lineshape of GaN Films Grown by Molecular Beam Epitaxy" phys. stat. sol. (a) 180, 381-86 (2000)
U. Behn, A. Thamm, O. Brandt, and H.T. Grahn, "Unpinned behavior of the surface Fermi level of GaN films detected by photoreflectance spectroscopy" , J. Appl. Phys. 87, 4315-18 (2000)
Poster, Vorträge:
U. Behn, P. Misra, H.T. Grahn, B. Imer, S. Nakamura, S.P. Denbaars, and J.S. Speck "Polarization anisotropy in nonpolar oriented GaN films studied by photoreflectance spectroscopy", 6th International Symposium on Blue Lasers and Light Emitting Diodes (ISBLLED2006) , May 14-19, 2006, Montpellier, France
U. Behn, A. Thamm, O. Brandt, and H.T. Grahn, "Line Shape Analysis of Photoreflectance Excitation Spectra of GaN Films on 6H-SiC(0001)" 4rd International Symposium on Blue Lasers and Light Emitting Diodes (ISBLLED2002) , March 11-15, 2002, Cordoba, Spain
U. Behn, A. Thamm, O. Brandt, and H.T. Grahn, "Temperature Dependence of the Photoreflectance Lineshape of GaN Films Grown by Molecular Beam Epitaxy" 3rd International Symposium on Blue Lasers and Light Emitting Diodes (ISBLLED2000) , 6-10 March 2000, Zeuthen/Berlin, Germany