Ti:sapphire tube laser by hypocycloidal-pinch plasma array
- Hampton Univ., VA (United States). Dept. of Physics
- National Aeronautics and Space Administration, Hampton, VA (United States). Langley Research Center
A Ti:sapphire hollow-tube laser has been pumped with plasma emission from a hypocycloidal pinch-plasma (HCP). The plasma color temperature was approximately 1 eV. The hollow of the Ti:Sapphire tube was filled with dye solution for spectrum conversion from the near-uv to 490-nm pump band of Ti laser. These new ideas for an improvement of the laser pumping efficiency were implemented. The operating conditions of the HCP were following: the input electrical energy to HCP was 3.75 kJ, argon fill gas pressure 90 Torr, and LD490 dye as the spectrum converter. The pump pulse had a halfwidth of 13 {mu}s and a risetime of 2 {mu}s. The dimension of laser cavity were: cavity length 200 mm, gain length 150 mm. Ti:sapphire crystal is in a hollow tube of 150 mm long, its outer diameter 10 mm with a wall thickness of 3 mm. The untuned laser pulse was detected at {lambda}c = 842 {+-} 6 nm and a temporal halfwidth of 2.5 {mu}s. Presentation will include the radiative properties of the dense plasmas in the HCP array and an optimization of Ti sapphire laser by the internal dye converter. The most interesting application of a high-energy Ti-Sapphire laser is generation of a tunable blue ({lambda} {approx} 456 nm by SHG) laser for bathymetry and underwater laser communication links.
- OSTI ID:
- 46177
- Report Number(s):
- CONF-940604-; ISBN 0-7803-2006-9; TRN: IM9522%%178
- Resource Relation:
- Conference: 1994 Institute of Electrical and Electronic Engineers (IEEE) international conference on plasma science, Santa Fe, NM (United States), 6-8 Jun 1994; Other Information: PBD: 1994; Related Information: Is Part Of IEEE conference record -- Abstracts; PB: 252 p.
- Country of Publication:
- United States
- Language:
- English
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