Plasma ultraviolet source for short wavelength lasers. Final report, 15 January 1985-14 January 1986

Technical Report · Mon Mar 10 00:00:00 EST 1986

OSTI ID:5815640

Han, K S

A high-power blue-green laser was pumped with an array of the dense plasma focus. As the result of optimizing the operating conditions of the dense plasma focus and laser system, the maximum untuned laser output exceeded 2.l mJ, corresponding to the energy density 3J/cu cm which is much higher than the typical flashlamp dye laser. The optimum operating conditions of the DPF device and laser system were argon pressure 0.3 torr, dye concentration 6 x 0.0001 mol/liter and 10% output transmission mirror. In order to enhance the efficiency of a blue-green laser through spectrum conversion of the pumping light, a converter dye, BBQ, was mixed in the laser dye solutions. The laser was pumped with the hypocyloidal-pinch plasma radiation source. The maximum increase of laser output at the dye mixture of LD490+BBQ or coumarin 503+bbq was about 80%. The enhancement is mainly due to the abundance of near uv in the pumping source, the fairly good match of the fluorescence band of converter dye with the absorption band of the laser dye, and a small overlap of fluorescence band of laser dyes with triplet-triplet adsorption band of converter dye.

• Research Organization: Hampton Inst., VA (USA). Dept. of Physics and Engineering Studies
• OSTI ID: 5815640
• Report Number(s): AD-A-165430/0/XAB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DYE LASERS
EFFICIENCY
OPTICAL PUMPING
ABSORPTION SPECTRA
CONVERSION
COUMARINS
DENSITY
DYES
PLASMA FOCUS
ULTRAVIOLET RADIATION
ANTICOAGULANTS
DRUGS
ELECTROMAGNETIC RADIATION
HEMATOLOGIC AGENTS
LASERS
LIQUID LASERS
PHYSICAL PROPERTIES
PUMPING
RADIATIONS
SPECTRA
420300* - Engineering- Lasers- (-1989)