Digital alloy InGaAs/InAlAs laser structures studied by cross-sectional scanning tunneling microscopy

P. Offermans, P.M. Koenraad, J.H. Wolter, J.D. Song, J.M. Kim, S.J. Bae, Y.T. Lee, M. Beck, T. Aellen, J. Faist

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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Samenvatting

We have studied digital alloy InAlAs/InGaAs quantum well and quantum cascade laser structures with cross-sectional scanning tunneling microscopy.We show the effect of rapid thermal annealing on structural properties of a digital alloy quantum well structure. Further, we compare a quantum cascade laser structure with digital alloy graded barriers to a structure with abrupt interfaces. We show that due to alloy fluctations, softening of the barriers occurs even without the digital alloy grading.
Originele taal-2Engels
TitelProc. 12th Int. Conf. on Scanning Tunneling Microscopy/Spectroscopy and Related Techniques, July 21-25 2003, Eindhoven, Netherlands
RedacteurenM. Kemerink, P.M. Koenraad
Plaats van productieMelville, New-York, USA
UitgeverijAmerican Institute of Physics
Pagina's677-684
ISBN van geprinte versie0-7354-0168-3
StatusGepubliceerd - 2003
Evenementconference; 12th Int. Conf. on Scanning Tunneling Microscopy/Spectroscopy and Related Techniques : STM 2003; 2003-07-21; 2003-07-25 -
Duur: 21 jul 200325 jul 2003

Publicatie series

NaamAIP Conference Proceedings
Volume696
ISSN van geprinte versie0094-243X

Congres

Congresconference; 12th Int. Conf. on Scanning Tunneling Microscopy/Spectroscopy and Related Techniques : STM 2003; 2003-07-21; 2003-07-25
Periode21/07/0325/07/03
Ander12th Int. Conf. on Scanning Tunneling Microscopy/Spectroscopy and Related Techniques : STM 2003

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