Krass & Young
Thermo-optically induced waveguide
 A waveguide created by thermo-optically induced changes in the refractive index of a medium resultant from absorption of light focused thereupon. The medium absorbs optical energy of a preselected wavelength to cause a refractive index change in response thereto. A pulsed optical switch beam of the preselected wavelength is focused on the medium. The switch beam has an energy level adapted to create an optically induced focal region waveguide therethrough. An optical probe beam is focused on the medium and angularly offset with respect to the pulsed beam. The probe beam is optically confined within the waveguide to emerge from the medium as a diverging, cone-shaped beam. 
Environmental Research Institute of Michigan
G
G02F
inventional
Lauren M.
Peterson