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Proceedings Paper

High-Q (>750,000) photonic crystal nanocavities fabricated from chalcogenide glass fully embedded in an index matched cladding
Author(s): Xin Gai; Barry Luther-Davies; Thomas P. White
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Paper 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.

Paper Details

Date Published: 25 April 2012
PDF: 7 pages
Proc. SPIE 8425, Photonic Crystal Materials and Devices X, 842516 (25 April 2012); doi: 10.1117/12.921526
Show Author Affiliations
Xin Gai, The Australian National Univ. (Australia)
Barry Luther-Davies, The Australian National Univ. (Australia)
Thomas P. White, The Australian National Univ. (Australia)

Published in SPIE Proceedings Vol. 8425:
Photonic Crystal Materials and Devices X
Hernán Ruy Míguez; Sergei G. Romanov; Lucio Claudio Andreani; Christian Seassal, Editor(s)

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