Sina Javanshir, Ali Pourziad, Saeed Nikmehr,
https://www.spiedigitallibrary.org/journals/Optical-Engineering/volume-58/issue-2/027101/Design-and-analysis-of-optical-micro-two-ring-resonator-temperature/10.1117/1.OE.58.2.027101.short?SSO=1
Micrometer-sized optical temperature sensors
with graphene have been designed and analyzed in order to reach the highest
temperature sensitivity. The main idea is to control the temperature of any
system by surface graphene material in a micro-two-ring resonator path. By
rising the temperature of the system, graphene with 5000 W / mK temperature
conductivity senses the increase and applies it in the sensor resonance peaks.
The prominent features of these sensors are small dimensions, high finesse and
sensitivity, safe from electromagnetic interference, high bandwidth, low
weight, and low cost. Electronic sensors suffer from electrical disturbances
and electromagnetic interference, and sometimes do not function properly.
Therefore, this micrometer optical temperature sensor with 44 × 40 μm
dimensions and high sensitivity and finesse in all industrial and medical
fields is necessary. The materials used in this sensor are graphene, Si, and
SiO2, which are natural elements and have very high temperature stability.
Free-spectral range reaches to 820 GHz and full width at half maximum to
21 GHz, and this quantity increases the finesse and sensitivity of the
system, the time delay of sensor is 1.21 ps, which shows the low light
dispersion and fast performance time.
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