Laser action in chromium-activated forsterite for near-infrared excitation

Technical Report · Sat Oct 15 00:00:00 EDT 1988

OSTI ID:6040931

Petricevic, V; Gayen, S K; Alfano, R R

Recently, the authors reported room-temperature pulsed-laser action in chromium-activated forsterite (Cr:Mg/sub 2/SiO/sub 4/). The free-running laser output was centered at 1235 nm with a spectral bandwidth (full width at half-maximum,FWHM) of 22 nm. The laser emission was stimulated by the 532-nm excitation of the green-red absorption band of the system. The crystal is characterized by a shallow absorption band spanning the 850-1200-nm wavelength range, which overlaps a significant portion of the emission spectrum and was previously thought to inhibit laser action in that region. In this communication, laser action in chromium-doped forsterite for 1064-nm excitation of this band is reported. The near infrared absorption thus turns out to be effective in populating the initial level of the lasing transition.

• Research Organization: City Univ. of New York, NY (USA)
• OSTI ID: 6040931
• Report Number(s): AD-A-205080/5/XAB
• Resource Relation: Other Information: Pub. in Applied Optics, Vol. 27, No. 20, 4162-4163 (15 Oct 1988)
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASER MATERIALS
MAGNESIUM SILICATES
SOLID STATE LASERS
ABSORPTION SPECTRA
EMISSION
EMISSION SPECTRA
EXCITATION
NEAR INFRARED RADIATION
ALKALINE EARTH METAL COMPOUNDS
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
INFRARED RADIATION
LASERS
MAGNESIUM COMPOUNDS
MATERIALS
OXYGEN COMPOUNDS
RADIATIONS
SILICATES
SILICON COMPOUNDS
SPECTRA
420300* - Engineering- Lasers- (-1989)