Refractive index insensitive temperature sensor based on a photonic crystal nanobeam cavity

Xuepei Li; Chao Wang; Zheng Wang; Zhongyuan Fu; Fujun Sun; Huiping Tian

doi:10.1117/12.2522602

14 February 2019 Refractive index insensitive temperature sensor based on a photonic crystal nanobeam cavity

Xuepei Li, Chao Wang, Zheng Wang, Zhongyuan Fu, Fujun Sun, Huiping Tian

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 110484F (2019) https://doi.org/10.1117/12.2522602
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

We present an ambient refractive index (RI) insensitive temperature sensor based on a Silicon-on-Insulator (SOI) ellipse stack major axis modulated photonic crystal (PC) nanobeam cavity (EPCNC). The PC nanobeam cavity is covered with SU-8 cladding to increase the temperature sensitivity by taking advantage of the relatively high thermooptic (TO) coefficient of SU-8 cladding. Three dimensional finite-difference time-domain (3D-FDTD) simulations are used for our analysis. The results show that the sensitivity of temperature sensing is -108.9pm/K. In particular, the proposed sensor not only achieves a competitive temperature sensitivity, but also eliminates the influence of ambient RI on sensing. Therefore, the proposed sensor is potentially a promising platform for future application of temperature sensing.

Citation Download Citation

Xuepei Li, Chao Wang, Zheng Wang, Zhongyuan Fu, Fujun Sun, and Huiping Tian "Refractive index insensitive temperature sensor based on a photonic crystal nanobeam cavity", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110484F (14 February 2019); https://doi.org/10.1117/12.2522602

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Sensors

Cladding

Photonic crystals

Temperature sensors

Silicon

Refractive index

Silica

Show All Keywords

Keywords/Phrases

Search In:

Publication Years