On the efficiency of e-beam and electric discharge pumped SF6-H2 laser

Edward A. Sosnin, Michail V. Erofeev, Victor M. Orlovskii, Victor S. Skakun, Victor F. Tarasenko

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

Energy, temporal and spectral characteristics of HF-laser pumped by non-chain chemical reaction initiated by radially converging e-beam, planar e-beam and non-self-sustained discharge have been investigated. The major channels of vibrationally excited HF molecules formation have been analyzed. It has been confirmed that the high efficiency (approximately 10%) of non-chain HF laser can be reached only by simultaneous atomic and molecular fluorine formation under the action of e-beam and molecular fluorine participation in the inversion releasing process. It is shown that the laser pulse has a complex spectral-temporal structure caused by consecutive generation of the P-lines P2→P1→P3→P4→P5→P6 and overlapping of the rotary lines of the same oscillatory band and separate oscillatory lines during a pulse of radiation. With e-beam pumping of a 30 1 active volume laser, the output energy as high as 115 J and efficiency with respect to e-beam energy deposited into gas mixture up to 8% were demonstrated. The optimal gas mixture SF6:H2 = 8:1 under pressure of 0.45 atm has been obtained. At pressure 1.1 atm and non-uniform output distribution, total laser energy and efficiency with respect to e-beam energy deposited into gas were found to be up to 200 J and 11%, respectively. E-beam initiated low pressure pulsed discharge for excitation HF molecules leads to increase of radiation energy in 2.8 times.

Язык оригиналаАнглийский
Название основной публикацииProceedings of SPIE - The International Society for Optical Engineering
ИздательSociety of Photo-Optical Instrumentation Engineers
Страницы22-28
Число страниц7
Том3931
СостояниеОпубликовано - 2000
Событие3rd Conference on Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications - San Jose, CA, USA
Продолжительность: 24 янв 200025 янв 2000

Другое

Другое3rd Conference on Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications
ГородSan Jose, CA, USA
Период24.1.0025.1.00

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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