Accession Number:

ADA172660

Title:

Intense Excitation Source of Blue-Green Laser.

Descriptive Note:

Annual summary rept. 1 Oct 85-30 Sep 86,

Corporate Author:

HAMPTON UNIV VA DEPT OF PHYSICS

Personal Author(s):

Report Date:

1986-10-06

Pagination or Media Count:

14.0

Abstract:

An intense and efficient source for blue green laser useful for the space-based satellite laser applications, underwater strategic communication, and measurement of ocean bottom profile is being developed. The source in use, the hypocycloidal pinch plasma HCP, and the dense plasma focus DPF can produce intense uv photons 200-400nm which match the absorption spectra of both near uv and blue green dye lasers 300-400nm. As a result of optimization of the DPF light at 355nm, the blue green dye LD490 laser output exceeding 4mJ was obtained at the best cavity tunning of the laser system. With the HCP pumped system a significant enhancement of the blue green laser outputs with dye LD490 and coumarin 503 has been achieved through the spectrum conversion of the pumping light by mixing a converter dye BBQ. The maximum increase of laser output with the dye mixture of LD490BBQ and coumarin 503BBQ was greater than 80. In addition, the untunned near uv lasers were also obtained. The near uv laser output energy of P-terphenyl dye was 0.5mJ at lambda sub C337nm with the bandwidth of 3nm for the pulse duration of 0.2us. Another near uv laser output energy obtained with BBQ dye was 25 mJ at lambda sub C383nm with the bandwidth of 3nm for the pulse duration of 0.2us. Another near uv laser output energy obtained with BBQ dye was 25 mJ at lambda sub C383nm with the bandwidth of 3nm for the pulse duration of 0.2microsec.

Subject Categories:

  • Lasers and Masers
  • Air Conditioning, Heating, Lighting and Ventilating

Distribution Statement:

APPROVED FOR PUBLIC RELEASE