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Husimi functions at gradient index cavities designed by conformal transformation optics

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Title
Husimi functions at gradient index cavities designed by conformal transformation optics
Author(s)
INBO KIM; JINHANG CHO; YUSHIN KIM; BUMKI MIN; JUNG-WAN RYU; SUNGHWAN RIM; MUHAN CHOI
Publication Date
2018-03
Journal
OPTICS EXPRESS, v.26, no.6, pp.6851 - 6859
Publisher
OPTICAL SOC AMER
Abstract
Dielectric cavity systems, which have been studied extensively so far, have uniform refractive indices of their cavities, and Husimi functions, the most widely used phase space representation of optical modes formed in the cavities, accordingly were derived only for these homogeneous index cavities. For the case of the recently proposed gradient index dielectric cavities called as transformation cavities designed by optical conformal mapping, we show that the phase space structure of resonant modes can be revealed through the conventional Husimi functions by constructing a reciprocal virtual space. As examples, the Husimi plots were obtained for an anisotropic whispering gallery mode (WGM) and a shortlived mode supported in a limaçon-shaped transformation cavity. The phase space description of the corresponding modes in the reciprocal virtual space is compatible with the far-field directionality of the resonant modes in the physical space. © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
URI
https://pr.ibs.re.kr/handle/8788114/4439
ISSN
1094-4087
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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