Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1339
Title: Graded index optical microresonators: analytical and numerical analyses
Authors: Dadashi, Khalil
Kurt, Hamza
Üstün, Kadir
Esen, Ramazan
200103
Keywords: Luneburg
Device
Modes
Lens
Issue Date: Sep-2014
Publisher: Optical Soc Amer
Source: Dadashi, K., Kurt, H., Üstün, K., & Esen, R. (2014). Graded index optical microresonators: analytical and numerical analyses. JOSA B, 31(9), 2239-2245.
Abstract: It is known that the spectra of optical modes supported by microresonators are shape and size dependent. We have introduced an additional parameter, i.e., spatially varying refractive index, to tailor the spectra of optical modes in a microdisk resonator while keeping size and shape intact. A new class of whispering gallery mode microresonators, referred to as graded index (GRIN) microresonators, is proposed. The GRIN profile belongs to a special inhomogeneous medium known as Maxwell's fish eye. The modal analysis of the structure is investigated both analytically and numerically. Solution of the Helmholtz equation is attempted under the spatially varying refractive index scenario and numerical verification of the analytical findings is tested by the finite-difference timedomain method. It is found that the two approaches support each other. It is expected that the findings of the GRIN microresonator may open up new research and device opportunities in photonics. (C) 2014 Optical Society of America
URI: https://www.osapublishing.org/josab/abstract.cfm?uri=josab-31-9-2239
https://hdl.handle.net/20.500.11851/1339
ISSN: 0740-3224
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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