Directional emission from an optical microdisk resonataor with a point scatterer

CP Dettmann, GV Morozov, MMA Sieber, H Waalkens

Research output: Contribution to journalArticle (Academic Journal)peer-review

21 Citations (Scopus)

Abstract

We present a new design of dielectric microcavities supporting modes with large quality factors and highly directional light emission. The key idea is to place a point scatterer inside a dielectric circular microdisk. We show that, depending on the position and strength of the scatterer, this leads to strongly directional modes in various frequency regions while preserving the high Q-factors reminiscent of the whispering gallery modes of the microdisk without scatterer. The design is very appealing due to its simplicity, promising a cleaner experimental realisation than previously studied microcavity designs on the one hand and analytic tractability based on Green's function techniques and self-adjoint extension theory on the other.
Translated title of the contributionDirectional emission from an optical microdisk resonataor with a point scatterer
Original languageEnglish
Article number34002
Number of pages5
JournalEPL
Volume82
Issue number3
DOIs
Publication statusPublished - May 2008

Bibliographical note

Publisher: IOP Publishing

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