Reconfigurable optical spectra from perturbations on elliptical whispering gallery resonances.
Elastic strain, electrical bias, and localized geometric deformations were applied to elliptical whispering-gallery-mode resonators fabricated with lithium niobate. The resultant perturbation of the mode spectrum is highly dependant on the modal indices, resulting in a discretely reconfigurable optical spectrum. Breaking of the spatial degeneracy of the whispering-gallery modes due to perturbation is also observed.
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109-8099, USA. makan@caltech.edu
Makan
M
Mohageg
Lute
L
Maleki
D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D009556:Niobium / Q000737:chemistry*; D055095:Optics and Photonics / Q000295:instrumentation*; D010087:Oxides / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D012542:Scattering, Radiation; D014159:Transducers
D010087:Oxides; D009556:Niobium; C091692:lithium niobate