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Regular | Open Access

Micro-Displacement Sensor Based on High Sensitivity Photonic Crystal

Saeed OLYAEE( ), Morteza AZIZI
Nano-Photonics and Optoelectronics Research Laboratory (NORLab), Faculty of Electrical and Computer Engineering, Shahid Rajaee Teacher Training University (SRTTU), 16788-15811, Tehran, Iran
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Abstract

In this paper, we present a micro-displacement sensor formed by the fixed and movable photonic crystal slabs. In this sensor, a waveguide was created by changing the radius of holes rather than removing them. At a proper operating wavelength, the structure could be used as the micro-displacement sensor. The results revealed that the micro-displacement sensor had a sensitivity of 3.6μm−1, the Q-factor was nearly 180, and the sensing range was 0.0µm – 0.5µm. The properties of the micro-displacement sensor are also analyzed theoretically and verified using the finite-difference time-domain (FDTD) method carried out using the software (Rsoft).

Keywords

Micro-displacement sensorQ-factorwaveguidesensitivityFDTDLorentzian function

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Photonic Sensors
Volume 4 Issue 3,
September 2014
Pages 220-224
DOI: 10.1007/s13320-014-0183-2

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Cite this article:
OLYAEE S, AZIZI M. Micro-Displacement Sensor Based on High Sensitivity Photonic Crystal. Photonic Sensors, 2014, 4(3): 220-224. https://doi.org/10.1007/s13320-014-0183-2

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Received: 03 March 2014
Revised: 22 May 2014
Published: 12 June 2014
© The Author(s) 2014.

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