Please use this identifier to cite or link to this item: https://doi.org/10.1364/OE.382226
Title: Vernier effect-based tunable mid-infrared sensor using silicon-on-insulator cascaded rings
Authors: Chang, Yuhua 
Dong, Bowei 
Ma, Yiming 
Wei, Jingxuan 
Ren, Zhihao 
Lee, Chengkuo 
Keywords: Science & Technology
Physical Sciences
Optics
SOI WAVE-GUIDE
HIGH-SENSITIVITY
OPTICAL SENSOR
MICRORING RESONATOR
GERMANIUM
BIOSENSOR
SAPPHIRE
DESIGN
FILTER
AIR
Issue Date: 2-Mar-2020
Publisher: OPTICAL SOC AMER
Citation: Chang, Yuhua, Dong, Bowei, Ma, Yiming, Wei, Jingxuan, Ren, Zhihao, Lee, Chengkuo (2020-03-02). Vernier effect-based tunable mid-infrared sensor using silicon-on-insulator cascaded rings. OPTICS EXPRESS 28 (5) : 6251-6260. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.382226
Abstract: Vernier effect has been captivated as a promising approach to achieve high-performance photonic sensors. However, experimental demonstration of such sensors in mid-infrared (MIR) range, which covers abundant absorption fingerprints of molecules, is still lacking. Here, we report Vernier effect-based thermally tunable photonic sensors using cascaded ring resonators fabricated on the silicon-on-insulator (SOI) platform. The radii and the coupling gaps in two rings are investigated as key design parameters. By applying organic liquids on our device, we observe an envelope shift of 48 nm with a sensitivity of 3000 nm/RIU and an intensity drop of 6.7 dB. Besides, our device can be thermally tuned with a sensitivity of 0.091 nm/mW. Leveraging the characteristic molecular absorption in the MIR, our work offers new possibilities for complex index sensing, which has wide applications in on-chip photonic sensors.
Source Title: OPTICS EXPRESS
URI: https://scholarbank.nus.edu.sg/handle/10635/189621
ISSN: 10944087
DOI: 10.1364/OE.382226
Appears in Collections:Staff Publications
Elements

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Vernier effect-based tunable mid-infrared sensor using silicon-on-insulator cascaded rings.pdfAccepted version775.43 kBAdobe PDF

OPEN

PublishedView/Download

SCOPUSTM   
Citations

15
checked on Dec 2, 2021

Page view(s)

76
checked on Dec 2, 2021

Download(s)

1
checked on Dec 2, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.