Design of an effective energy storage cavity in two-dimensional photonic crystal slab

Yazhao Liu; H. W. M. Salemink

doi:10.1117/12.922622

25 April 2012 Design of an effective energy storage cavity in two-dimensional photonic crystal slab

Yazhao Liu, H. W. M. Salemink

Proceedings Volume 8425, Photonic Crystal Materials and Devices X; 84251Z (2012) https://doi.org/10.1117/12.922622
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

A design of a point-defect cavity in two-dimensional photonic crystal slab with both high Q factor and high transmission intensity has been achieved by adjusting the radii and position of lattice points in both parallel and perpendicular directions. Analysis shows that discrete resonant modes have been found in the 1550 wavelength range with Q factors up to 40,000. Moreover, the cavity was verified to subject to minor intensity decrease of 1.2 dB due to the introducing of external waveguide access. All these features make the cavity a very promising candidate for light transmission and detection in practical application. We also demonstrate the potential application of such a cavity being used as a sensitive index sensor with a high sensitivity of 400nm/refractive index unit.

Citation Download Citation

Yazhao Liu and H. W. M. Salemink "Design of an effective energy storage cavity in two-dimensional photonic crystal slab", Proc. SPIE 8425, Photonic Crystal Materials and Devices X, 84251Z (25 April 2012); https://doi.org/10.1117/12.922622

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