Design of an Ultra-Compact and Highly-Sensitive Temperature Sensor Using Photonic Crystal Based Single Micro-Ring Resonator and Cascaded Micro-Ring Resonator

In the present report, a photonic crystal based micro-ring resonator (MRR) structure is proposed which is very compact in size and has very fast response and is employed for temperature sensing purpose. Temperature sensing application for both the single MRR and cascaded MRR is illustrated in this p...

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Bibliographic Details
Published in:SILICON 2021-03, Vol.13 (3), p.885-892
Main Authors: Biswas, Uttara, Rakshit, Jayanta Kumar, Das, Joyashree, Bharti, Gaurav Kumar, Suthar, Bhuvneshwer, Amphawan, Angela, Najjar, Monia
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Crystals
Engineering
Environmental Chemistry
Finite difference time domain method
Inorganic Chemistry
Lasers
Materials Science
Optical Devices
Optics
Original Paper
Photonic crystals
Photonics
Point defects
Polymer Sciences
Refractivity
Resonators
Sensors
Spectrum analysis
Temperature sensors
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Summary:In the present report, a photonic crystal based micro-ring resonator (MRR) structure is proposed which is very compact in size and has very fast response and is employed for temperature sensing purpose. Temperature sensing application for both the single MRR and cascaded MRR is illustrated in this paper. The sensitivity of the reported structure is increased from 2.9 nm/°C to 3.4 nm/°C by cascading two MRR. The refractive index of the material is subjected to change with the variation in temperature which results in the shift of the resonant wavelength of the proposed sensor. The finite difference time domain (FDTD) simulation is utilized to see the transmission spectrum of the proposed structure and analyzing the shift in the resonance wavelength the temperature is calculated. The proposed design is simple, reliable and may be integrated into different transducer and sensing applications.
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-020-00489-z