Title :
Ultrasound sensing using a fiber coupled silica microtoroid resonator encapsulated in a polymer
Author :
Monifi, Faraz ; Bo Peng ; Ozdemir, Sahin Kaya ; Lijun Ma ; Maslov, Konstantin ; Wang, L.V. ; Lan Yang
Author_Institution :
Dept. of Electr. & Syst. Eng., Washington Univ. in St.Louis, St. Louis, MO, USA
Abstract :
We have demonstrated the detection of a 12MHz ultrasound wave using a microtoroidal whispering gallery mode optical resonator, encapsulated in a low-refractive-index polymer with its coupling tapered-fiber. The sensitivity of our device is 35 mV/KPa.
Keywords :
encapsulation; fibre optic sensors; micro-optomechanical devices; micromechanical resonators; microsensors; optical polymers; optical resonators; refractive index; silicon compounds; ultrasonic devices; whispering gallery modes; SiO2; coupling tapered-fiber; encapsulation; fiber coupled silica microtoroid resonator; frequency 12 MHz; low-refractive-index polymer; microtoroidal whispering gallery mode optical resonator; ultrasound sensing; ultrasound wave detection; Optical fiber devices; Optical resonators; Polymers; Silicon compounds; Transducers; Ultrasonic imaging; Voltage measurement; microcavity; optical resonator; packaging; sensing; ultrasound; whispering gallery;
Conference_Titel :
Photonics Conference (IPC), 2013 IEEE
Conference_Location :
Bellevue, WA
Print_ISBN :
978-1-4577-1506-8
DOI :
10.1109/IPCon.2013.6656511
