Development of solid-state vibrational lasers. Final report, 1 April 1984-31 March 1985
Continuous-wave lasing in the 5 ..mu..m wavelength region was obtained on the 2 to 1 vibrational transition of impurity CN- ions in KBr. Population inversion is produced by optical pumping of the weakly allowed first-overtone level of the molecule with a tunable (F2(+)) sub A color-center laser. The energy budget of this solid-state vibrational laser was investigated when the v = 2 upper laser level is pumped with a C-W color center laser. Using pulsed fluorescence techniques and numerical simulations, it was found that due to vibrational energy exchange between pairs of CN- ions in the v = 1 lower level, waste pump energy is recycled to the v = 2 upper level. Ideally the efficiency of this recycyling scheme approaches unity, but due to energy transfer into higher vibrational levels, and because of spectral diffusion within the inhomogeneously broadened CN- profile, the observed recycling efficiency is reduced. The author thinks this is the first experiment demonstrating defeat of the Manley-Rowe limit.
- Research Organization:
- Cornell Univ., Ithaca, NY (USA). Lab. of Atomic and Solid State Physics
- OSTI ID:
- 6046554
- Report Number(s):
- AD-A-159817/6/XAB
- Country of Publication:
- United States
- Language:
- English
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Continuous-wave operation of the KBr:CN/sup -/ solid-state vibration laser in the 5-. mu. m region
Development of the cn- solid-state vibrational laser. Final report, 1 August 1985-31 October 1988
Related Subjects
420300* -- Engineering-- Lasers-- (-1989)
ALKALI METAL COMPOUNDS
BROMIDES
BROMINE COMPOUNDS
CHARGED PARTICLES
COLOR CENTERS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
EFFICIENCY
ENERGY LEVELS
ENERGY TRANSFER
EXCITED STATES
FLUORESCENCE
HALIDES
HALOGEN COMPOUNDS
IMPURITIES
IONS
LASERS
LUMINESCENCE
MATHEMATICS
NUMERICAL ANALYSIS
OPTICAL PUMPING
POINT DEFECTS
POTASSIUM BROMIDES
POTASSIUM COMPOUNDS
PULSES
PUMPING
SOLID STATE LASERS
VACANCIES
VIBRATIONAL STATES