Wavelength-scale microdisks as optical gyroscopes : a finite-difference time-domain simulation study

  title={Wavelength-scale microdisks as optical gyroscopes : a finite-difference time-domain simulation study},
  author={R. Raghunath Sarma and Heeso Noh and Hui Cao},
We have developed a finite-difference time-domain algorithm to simulate a wavelength-scale optical gyroscope based on a circular microdisk. In addition to the frequency shift, the rotation-induced changes in the quality factor and far-field emission pattern of the whispering gallery modes are studied. Compared to the closed cavity of same size and shape, an open cavity displays a larger frequency splitting by rotation, due to an increase of themode size. When the disk dimension is on the order… CONTINUE READING
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