The mode spectrum of a 3.8-cm-diameter fused-silica sphere has been studied in the vicinity of 1.06 μm. A single-frequency Nd:YAG laser was used to excite whispering gallery modes by means of evanescent wave coupling. The spectrum is in excellent agreement with predictions from Mie theory.
© 1991 Optical Society of America
Original Manuscript: March 26, 1991
Published: August 1, 1991
Stephan Schiller and R. L. Byer, "High-resolution spectroscopy of whispering gallery modes in large dielectric spheres," Opt. Lett. 16, 1138-1140 (1991)