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25 April 2012 High-Q (>750,000) photonic crystal nanocavities fabricated from chalcogenide glass fully embedded in an index-matched cladding
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Abstract
We have fabricated a Ge11.5As24Se64.5 2-D photonic crystal containing a hetero-structure cavity fully embedded in a cladding with index of 1.44. Because of the low index contrast of this structure (≈1.2) we had to use a W0.54 defect waveguide to inhibit losses to continuum modes above the light line. By has allowed optical cavities with very high Q (>750,000) to be obtained.
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Xin Gai, Barry Luther-Davies, and Thomas P. White "High-Q (>750,000) photonic crystal nanocavities fabricated from chalcogenide glass fully embedded in an index-matched cladding", Proc. SPIE 8425, Photonic Crystal Materials and Devices X, 842516 (25 April 2012); https://doi.org/10.1117/12.921526
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