Generation of tunable picosecond pulses in the vibrational infrared by stimulated electronic Raman scattering of rhodamine-dye-laser pulses from the 6s--5d cesium transition

Journal Article · Wed Feb 01 04:00:00 EST 1984 · Opt. Lett.; (United States)

DOI:https://doi.org/10.1364/OL.9.000050· OSTI ID:5151186

Berg, M; Harris, A L; Brown, J K; Harris, C B

The first reported use of a rhodamine-dye laser to generate tunable high-power picosecond pulses in the vibrational infrared is described. By using stimulated electronic Raman scattering from the 6s--5d transition in a superheated cesium vapor, we have shifted 1-psec pulses from an amplified rhodamine-dye laser (568--590 nm) to 3040--2320 cm/sup -1/ (3.3--4.3 ..mu..m). Somewhat longer pulses have been shifted to 1950 cm/sup -1/ (5.1 ..mu..m). Peak infrared energies of 11 ..mu..J, representing a quantum efficiency of 4.6%, were obtained at a 10-Hz repetition rate. Tuning to longer wavelengths with short pulses is limited by nonlinear processes but should be possible by further reductions of cesium dimer effects.

• Research Organization: Department of Chemistry, University of California at Berkeley, and the Materials and Molecular Research Division, Lawrence Berkeley Laboratory, Berkeley, California 94720
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5151186
• Journal Information: Opt. Lett.; (United States), Journal Name: Opt. Lett.; (United States) Vol. 9:2; ISSN OPLED
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALKALI METALS
CESIUM
CONTROL
DYE LASERS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
ENERGY SPECTRA
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FREQUENCY CONTROL
INFRARED RADIATION
LASER SPECTROSCOPY
LASERS
LINE WIDTHS
LIQUID LASERS
METALS
NONLINEAR OPTICS
OPTICS
PULSES
RADIATIONS
RAMAN SPECTROSCOPY
SPECTRA
SPECTROSCOPY
VIBRATIONAL STATES
WAVELENGTHS