Angle-dependent photocurrent spectroscopy of oxide-apertured vertical-cavity surface-emitting lasers during aging

Autor:	T. D. Lowes, A. Jaeger, Pierre Petroff
Rok vydání:	2001
Předmět:	Photocurrent Materials science Physics and Astronomy (miscellaneous) business.industry Photoconductivity Laser Spectral line law.invention Semiconductor laser theory Optics Angle of incidence (optics) law Optoelectronics business Spectroscopy Tunable laser
Zdroj:	Applied Physics Letters. 78:3012-3014
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.1371792
Popis:	Aging properties of oxide-apertured vertical-cavity surface-emitting lasers have been analyzed by photocurrent (PC) measurements at room temperature. We demonstrate that this method allows an analysis of the aging process and provides insight into degradation mechanisms occurring during operation of these devices. By changing the angle of incidence in the PC experiment the energy positions of the top mirror features shift to higher energy while the excitonic transitions do not change. Thus, angle dependent PC spectra reveal both the appearance of defect bands located in the intrinsic region of the device as well as modifications of the top mirror transmission upon aging.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::be4e9249a26075ff84d24383ef40d332 https://doi.org/10.1063/1.1371792 Zobrazit plný text záznamu