Allied Corporation

Metalaser Technologies, Inc.

John C Walling

Michael L Shand

Robert S Anderson

Donald F Heller

A laser beam from a tunable solid state laser such as an alexandrite laser passes through a Raman shifter to produce a Raman-emitted beam with wavelength shifted so as to be able to activate a preselected photosensitizer for medical treatment. A combination of a laser and a Raman shifter with or without additionally a harmonic generator such as a frequency doubler may be also selected such that radiation with two different wavelengths can be obtained for treatment and detection.

Method of and apparatus for laser-assisted therapy

A broadly wavelength-tunable laser is provided which comprises as the laser medium a single crystal of YGG:Cr.sup.3+. The laser may be operated over a broad temperature range from cryogenic temperatures to elevated temperatures. Emission is in a spectral range from red to infrared, and the laser is useful in the fields of defense, communications, isotope separation, photochemistry, etc.

Growing community of inventors

White House Station, NJ, United States of America

John C Walling