Two-photon optically pumped molecular gas visible laser. [Ammonia]

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Recent investigations of the multiphoton ionization (MPI) spectrum of gaseous ammonia have led to the discovery of a novel two-photon pumped molecular gas electronic transition laser. Resonant, two-photon electronic excitation of NH/sub 3/ in the near uv (approx. 305 nm) leads to the first observation of fluorescence from NH/sub 3/ excited states (B and C'), and, at higher pressures, to lasing action (approx. 570 nm) between numerous C' and A state vibronic levels. A frequency-doubled Nd:YAG pumped dye laser (a few mJ) is focused into a cell containing NH/sub 3/ (or ND/sub 3/). Stimulated emission is observed in the forward ... continued below

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Pages: 11

Creation Information

Quick, C.R. Jr.; Glownia, J.H.; Tiee, J.J. & Archuleta, F.L. January 1, 1983.

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Description

Recent investigations of the multiphoton ionization (MPI) spectrum of gaseous ammonia have led to the discovery of a novel two-photon pumped molecular gas electronic transition laser. Resonant, two-photon electronic excitation of NH/sub 3/ in the near uv (approx. 305 nm) leads to the first observation of fluorescence from NH/sub 3/ excited states (B and C'), and, at higher pressures, to lasing action (approx. 570 nm) between numerous C' and A state vibronic levels. A frequency-doubled Nd:YAG pumped dye laser (a few mJ) is focused into a cell containing NH/sub 3/ (or ND/sub 3/). Stimulated emission is observed in the forward and backward direction at NH/sub 3/ pressures greater than approx. 200 torr, without external mirrors to provide feedback. Conversion coefficiencies (output NH/sub 3/ pulse energy/input pulse energy) as high as 2% have been observed.

Physical Description

Pages: 11

Notes

NTIS, PC A02/MF A01.

Source

  • Society of Photo-Optical Instrumentation Engineers conference, Santa Fe, NM, USA, 11 Apr 1983

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  • Other: DE83011144
  • Report No.: LA-UR-83-1171
  • Report No.: CONF-830425-12
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6303642
  • Archival Resource Key: ark:/67531/metadc1110570

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1983

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  • Feb. 22, 2018, 7:45 p.m.

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  • May 25, 2018, 5:39 p.m.

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Quick, C.R. Jr.; Glownia, J.H.; Tiee, J.J. & Archuleta, F.L. Two-photon optically pumped molecular gas visible laser. [Ammonia], article, January 1, 1983; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1110570/: accessed December 10, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.