Whispering‐gallery modes (WGM) on a spherical surface were first described by Lord
Rayleigh at the beginning of the last century, but only after the invention of laser did they …

Optical whispering gallery modes (WGMs) derive their name from a famous acoustic
phenomenon of guiding a wave by a curved boundary observed nearly a century ago. This …

Confinement of light into small volumes has become an essential requirement for photonic
devices; examples of this trend are provided by optical fibers, integrated optical circuits …

This volume represents the most complete, up-to-date compilation of wavelengths of lasers
in all media. Divided by type-solid, liquid, and gas-and listed in order of increasing …

Lasers continue to be an amazingly robust field of activity. Anyone seeking a photon source
is now confronted with an enormous number of possible lasers and laser wavelengths to …

A novel class of optical materials, microcavities doped with nanostructured fractal
aggregates, was studied. Fractal aggregate optical excitations may be concentrated in …

Micro dielectric spheres are known to act as efficient optical resonators. According to the
Lorenz-Mie scattering theory, micro spheres of the order of the several tenth of micrometer in …

A liquid droplet can act as a microscale high-Q optical cavity via a whispering gallery mode,
where light resonates with enhanced intensity. A collision of two droplets temporarily …

The spectral behavior of 15.3-μm-diameter Rhodamine 6G in water solution droplets was
studied. Microdroplet lasing is known to occur simultaneously at many discrete wavelengths …

The US Government has a paid-up license in this inven tion and the right in limited
circumstances to require the patent owner to license others on reasonable terms as …