Toward a whitelight laser. [Cd-He]

Journal Article · Sat Nov 01 04:00:00 EST 1975 · Laser Focus; (United States)

OSTI ID:7100430

Meckley, J

A modified Cd--He laser emits simultaneously at five wavelengths in the green, red, and blue. This can simplify multicolor recording and color holography systems that now require an awkward and expensive setup with two or more cw monochromatic lasers emitting each at its own wavelength. A cataphoretic process in the metal-vapor discharge sweeping Cd ions toward the cathode is a major factor in Cd--He laser tube design. Mirror reflectivity can be altered to select wavelength. Emission occurs from the negative-glow region of the cathode and the hollow cathode doubles as a discharge bore around which Cd vapor can diffuse back to the anode region. The relative outputs at the several emission wavelengths can be adjusted for improved fits to the ICI chromaticity diagram, enabling more accurate reproduction of colors.

• OSTI ID: 7100430
• Journal Information: Laser Focus; (United States), Journal Name: Laser Focus; (United States) Vol. 11; ISSN LAFOA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CADMIUM
CRYOGENIC FLUIDS
DESIGN
ELEMENTS
FLUIDS
GAS LASERS
GASES
HELIUM
LASERS
METALS
NONMETALS
OPERATION
RARE GASES
VAPORS