Publications [#179203] of Tomoyuki Yoshie
- L. Tang and T. Yoshie, High-Q hybrid 3D-2D slab-3D photonic crystal microcavity,
Optics Letters, vol. 35
pp. 3144-3146 [doi]
(last updated on 2010/09/15)
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.