Accession Number : ADA112104

Title :   Blue-Green Laser Output from N(+2) and XeF.

Descriptive Note : Final technical rept. 1 Jan 77-31 Oct 81,


Personal Author(s) : Collins,Carl B

PDF Url : ADA112104

Report Date : 30 Dec 1981

Pagination or Media Count : 201

Abstract : The objective of this work was to determine the feasibility of developing, first the helium nitrogen charge transfer laser, and later the XeF laser into efficient scalable devices excited by preionized discharges for the production of blue-green outputs. The performance and scalability of the N2(+) laser pumped by charge transfer from He2(+) was determined in such a discharge environment. The gain and saturation parameters were measured and a regenerative amplifier capable of operation at 470.9 nm was constructed. A traveling wave device was built which at 427 nm produced peak powers of 5 MW in the forward direction and which had a front-to-back ratio of 10,000 to 1 for the pulse energies. Efforts were made to apply that technology to the problem of switching the output from a XeF laser into the C yields A transition at 480 nm. Gain and saturation parameters were examined and it was found that the relative gains between the stronger UV transition and the blue-green transition were greater than 30 to 1. These results implied that the blue-green transition of XeF was too weak to support the development of any practical device pumped by a preionized discharge. (Author)

Descriptors :   *Xenon lasers, *Nitrogen lasers, *Fluorides, *Helium, Production, Blue(Color), Green(Color), Transitions, Output, Charge transfer, Nitrogen, Ionization, Pulses, Low strength, Direction finding, Amplifiers, Regeneration(Electronics), Traveling waves, Saturation, Laser pumping

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE