Spectrum of Fused Silica Microspheres
Spectrum of Fused Silica Microspheres
A perfect whispering-gallery-mode microsphere's transmission spectrum is determined by its radius, polarization, refractive index, and the refractive index of the outside medium. This Demonstration shows how the spectrum (and free spectral range) changes around the 1400 nm (1.4 μm) wavelength range as the radius of the fused silica microsphere changes.