High Q factor chalcogenide ring resonators for cavity-enhanced MIR spectroscopic sensing | Zendy

Pan Ma | Zendy; DukYong Choi | Zendy; Yi Yu | Zendy; Zhiyong Yang | Zendy; Khu Vu | Zendy; Thach G. Nguyen | Zendy; Arnan Mitchell | Zendy; Barry LutherDavies | Zendy; Steve Madden | Zendy

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High Q factor chalcogenide ring resonators for cavity-enhanced MIR spectroscopic sensing

Author(s) -

Pan Ma,

DukYong Choi,

Yi Yu,

Zhiyong Yang,

Khu Vu,

Thach G. Nguyen,

Arnan Mitchell,

Barry LutherDavies,

Steve Madden

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.019969

Subject(s) - resonator , cladding (metalworking) , chalcogenide , materials science , optics , q factor , ring (chemistry) , chalcogenide glass , split ring resonator , optoelectronics , refractive index , infrared , physics , chemistry , organic chemistry , metallurgy

We report the characteristics of high Q factor chalcogenide ring resonators designed for sensing in the mid-infrared (MIR). The resonators consisted of an exposed Ge11.5As24Se64.5 core on a Ge11.5As24S64.5 bottom cladding and were fabricated in the racetrack coupled ring structure. Loaded Q factors at 5.2μm up to 58,000were obtained, corresponding to an intrinsic Q of 145,000 and a waveguide propagation loss of 0.84dB/cm.

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