High-Q hybrid 3D-2D slab-3D photonic crystal microcavity | Zendy

Lingling Tang | Zendy; Tomoyuki Yoshie | Zendy

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High-Q hybrid 3D-2D slab-3D photonic crystal microcavity

Author(s) -

Lingling Tang,

Tomoyuki Yoshie

Publication year - 2010

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.35.003144

Subject(s) - photonic crystal , slab , optics , materials science , q factor , cladding (metalworking) , optoelectronics , yablonovite , resonance (particle physics) , photonic integrated circuit , resonator , physics , particle physics , geophysics , metallurgy

The radiation loss in the escaping light cone with a two-dimensional (2D) photonic crystal slab microcavity can be suppressed by means of cladding the low-Q slab microcavity by three-dimensional woodpile photonic crystals with the complete bandgap when the resonance frequency is located inside the complete bandgap. It is confirmed that the hybrid microcavity based on a low-Q, single-defect photonic crystal slab microcavity shows improvement of the Q factor without affecting the mode volume and modal frequency. Whereas 2D slab microcavities exhibit Q saturation with an increase in the number of layers, for the analyzed hybrid microcavities with a small gap between the slab and woodpiles, the Q factor does not saturate.

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