Lasing properties of disk microcavity based on a circular Bragg reflector

Autor:	Romuald Houdré, Ursula Oesterle, Brendan Roycroft, A. Shaw, John Hegarty, Caleb Smith, D. Labilloy, Claude Weisbuch, Henri Benisty, Thomas F. Krauss, R. P. Stanley
Rok vydání:	1999
Předmět:	Diffraction Physics Physics and Astronomy (miscellaneous) business.industry Whispering gallery Physics::Optics Distributed Bragg reflector Gain-switching Optics Distributed Bragg reflector laser Wave vector business Lasing threshold Quantum well
Zdroj:	Applied Physics Letters. 75:3051-3053
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.125227
Popis:	The lasing properties of quantum well structures, where the cavity is defined in the plane of the wells by circular Bragg reflectors are investigated. Diffraction of the in-plane lasing modes into the vertical direction by the circular distributed Bragg reflector (DBR) allows the simultaneous measurement of near-field emission patterns and emission spectra, allowing unambiguous assignment of azimuthal quantum numbers to the lasing modes. The radial quantum number is determined by fitting the lasing spectrum to theory. Lasing is shown to occur in modes whose wave vector is mainly radial, confined by the circular DBR structure, rather than in whispering gallery type modes which are mainly azimuthal.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::141f485d29b0bf8a16349e7d23e31e78 https://doi.org/10.1063/1.125227 Zobrazit plný text záznamu