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Nano force sensing using symmetric double stage micro resonator
Author(s)
Bahadoran, Mahdi
Noorden, Ahmad Fakhrurrazi Ahmad
Chaudhary, Kashif
Safwan Aziz, Muhammad
Ali, Jalil
Yupapin, Preecha
Date Issued
December 1, 2014
Type
Review
Abstract
A new approach is proposed to improve a graphical approach with considering intensity coupling loss coefficients in the analytical derivation of the optical transfer functions for a symmetric double stage vertically coupled microring resonator. An optimum transmission coupling condition is determined with considering terms of couplers intensity loss which leads to low insertion loss of 1.2 dB, finesse of 1525, the out of band rejection ratio of 61.8 dB. The resonating system is used as an optical force sensing system to make the benefit of the accuracy of measurements in micro and nano scales. The sensitivity of proposed force sensor in terms of wavelength-shift is 33 nm/nN and the limit of detection is 1.6 × 10-2 nN. The proposed sensing system has the advantages of self-calibration and the low power consumption due to the low intensity.
Citation
Measurement Journal of the International Measurement Confederation, 58, 215-220, 2014