Integrated temperature sensor based on an enhanced pyroelectric photonic crystal | Zendy

Huihui Lu | Zendy; Benattou Sadani | Zendy; Gwenn Ulliac | Zendy; Clément Guyot | Zendy; Nadège Courjal | Zendy; Manuel Collet | Zendy; Fadi Baida | Zendy; M.-P. Bernal | Zendy

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Integrated temperature sensor based on an enhanced pyroelectric photonic crystal

Author(s) -

Huihui Lu,

Benattou Sadani,

Gwenn Ulliac,

Clément Guyot,

Nadège Courjal,

Manuel Collet,

Fadi Baida,

M.-P. Bernal

Publication year - 2013

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.21.016311

Subject(s) - materials science , pyroelectricity , lithium niobate , photonic crystal , optics , finite difference time domain method , optoelectronics , wavelength , photonics , sensitivity (control systems) , ferroelectricity , dielectric , physics , electronic engineering , engineering

In this paper, temperature variations are detected thanks to an enhanced nano-optical pyroelectric sensor. Sensing is obtained with the pyroelectric effect of lithium niobate (LN) in which, a suitable air-membrane photonic crystal cavity has been fabricated. The wavelength position of the cavity mode is tuned 11.5 nm for a temperature variation of only 32 °C. These results agree quite well with 3D-FDTD simulations that predict tunability of 12.5 nm for 32 °C. This photonic crystal temperature sensor shows a sensitivity of 0.359 nm/°C for an active length of only ~5.2 μm.

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