Photonic crystal heteroslab-edge microcavity with high quality factor surface mode for index sensing

Tsan Wen Lu; Yi Hua Hsiao; Wei De Ho; Po Tsung Lee

doi:10.1063/1.3117225

Photonic crystal heteroslab-edge microcavity with high quality factor surface mode for index sensing

Tsan Wen Lu^*, Yi Hua Hsiao, Wei De Ho, Po Tsung Lee

^*Corresponding author for this work

Department of Photonics

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

In this report, we propose a photonic crystal heteroslab-edge microcavity design for optical index sensing, where the high quality (Q) surface mode is confined by mode-gap effect. By optimizing the barrier region of the microcavity, high Q factor of 6.6× 105 is obtained in simulations. Lasing actions with high Q factor and low threshold of 6400 and 0.55 mW are obtained from the real devices. High index sensing response and small detectable index variation of 625 nm per refractive index unit and 3.6× 10-6 are obtained in simulations.

Original language	English
Article number	141110
Journal	Applied Physics Letters
Volume	94
Issue number	14
DOIs	https://doi.org/10.1063/1.3117225
State	Published - 17 Apr 2009

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abstract = "In this report, we propose a photonic crystal heteroslab-edge microcavity design for optical index sensing, where the high quality (Q) surface mode is confined by mode-gap effect. By optimizing the barrier region of the microcavity, high Q factor of 6.6× 105 is obtained in simulations. Lasing actions with high Q factor and low threshold of 6400 and 0.55 mW are obtained from the real devices. High index sensing response and small detectable index variation of 625 nm per refractive index unit and 3.6× 10-6 are obtained in simulations.",

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AU - Ho, Wei De

AU - Lee, Po Tsung

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AB - In this report, we propose a photonic crystal heteroslab-edge microcavity design for optical index sensing, where the high quality (Q) surface mode is confined by mode-gap effect. By optimizing the barrier region of the microcavity, high Q factor of 6.6× 105 is obtained in simulations. Lasing actions with high Q factor and low threshold of 6400 and 0.55 mW are obtained from the real devices. High index sensing response and small detectable index variation of 625 nm per refractive index unit and 3.6× 10-6 are obtained in simulations.

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Photonic crystal heteroslab-edge microcavity with high quality factor surface mode for index sensing

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