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Titolo:
Proposal and finite-difference time-domain simulation of whispering galleymode microgear cavity
Autore:
Fujita, M; Baba, T;
Indirizzi:
Yokohama Natl Univ, Fac Elect & Comp Engn, Hodogaya Ku, Yokohama, Kanagawa2408501, Japan Yokohama Natl Univ Yokohama Kanagawa Japan 2408501 Kanagawa2408501, Japan
Titolo Testata:
IEEE JOURNAL OF QUANTUM ELECTRONICS
fascicolo: 10, volume: 37, anno: 2001,
pagine: 1253 - 1258
SICI:
0018-9197(200110)37:10<1253:PAFTSO>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
MICRODISK INJECTION-LASERS; LASING CHARACTERISTICS;
Keywords:
FDTD; grating; microcavity; microdisk; microgear; spontaneous emission control; whispering gallery mode;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
--discip_EC--
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Baba, T Yokohama Natl Univ, Fac Elect & Comp Engn, Hodogaya Ku, Yokohama, Kanagawa2408501, Japan Yokohama Natl Univ Yokohama Kanagawa Japan 2408501 2408501, Japan
Citazione:
M. Fujita e T. Baba, "Proposal and finite-difference time-domain simulation of whispering galleymode microgear cavity", IEEE J Q EL, 37(10), 2001, pp. 1253-1258

Abstract

The existence of many high Q whispering galley modes in microdisk and microcylinder lasers seriously affects the internal efficiency in lasing operation and disturbs the enhancement of the spontaneous emission factor. To suppress these modes except for one lasing mode, we propose the microgear cavity having a grating with the same period as that of the mode standing wave. The finite-difference time-domain simulation theoretically demonstrates that the microgear selects one resonant mode that satisfies the unique condition regarding the mode order and the phase. This paper describes the dependence of the mode behavior on some structural parameters, and concludes thata deep grating, which seems to be possible in an experiment, allows for sufficient suppression of any types of nonlasing modes and the enhancement ofthe Q factor of the lasing mode.

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Documento generato il 29/03/20 alle ore 01:19:36