Publication detail
Near-field photocurrent spectra in DQW-GRIN laser diodes
GRMELA, L. LÉTAL, P. TOMÁNEK, P.
English title
Near-field photocurrent spectra in DQW-GRIN laser diodes
Type
conference paper
Language
en
Original abstract
We present the comparative study of spatially resolved near-field photocurrent (NPC) spectra for high power laser diode arrays with double quantum well before and after degradation due to the aging process. Subwavelength spatial resolution is established using a single mode fiber probe as an excitation source. The potential of the technique for analyzing microscopic aging processes in optoelectronic devices is demonstrated. The nondestructive quality of this method is a particularly attractive for in-situ analysis of the structures.
English abstract
We present the comparative study of spatially resolved near-field photocurrent (NPC) spectra for high power laser diode arrays with double quantum well before and after degradation due to the aging process. Subwavelength spatial resolution is established using a single mode fiber probe as an excitation source. The potential of the technique for analyzing microscopic aging processes in optoelectronic devices is demonstrated. The nondestructive quality of this method is a particularly attractive for in-situ analysis of the structures.
Keywords in English
DQW-GRIN laser diode, degradation, aging process, optical near-field, photoccurent spectra
RIV year
2001
Released
01.01.2001
Publisher
VUT v Brně
Location
Brno
ISBN
80-214-1780-1
Book
Electronic Devices and Systems, EDS'Y2K
Edition number
1
Pages count
4
BIBTEX
@inproceedings{BUT3884,
author="Lubomír {Grmela} and Petr {Létal} and Pavel {Tománek},
title="Near-field photocurrent spectra in DQW-GRIN laser diodes",
booktitle="Electronic Devices and Systems, EDS'Y2K",
year="2001",
month="January",
publisher="VUT v Brně",
address="Brno",
isbn="80-214-1780-1"
}