ScholarLens Back to search
1984•Applied Physics LettersRequires access

16–21-μm line-tunable NH3 laser produced by two-step optical pumping

Hugh Morrison, J. Reid, Brian K. Garside

Open publisher page 9 citations

Abstract

A novel two-step optical pumping technique is described for creating line-tunable laser emission in the 2ν2–ν2 band of NH3. Two TE CO2 lasers operating on the R(30) and P(24) 9-μm transitions are used to pump the sR(5,0) and 2sR(4,3) NH3 transitions respectively, and lasing is observed on 11 different NH3 lines having wavelengths from 16 to 21 μm. This pumping technique relies on rapid rotational thermalization in the vibrational levels to enhance the pump absorptions and distribute the population inversion. The possibility of producing cw line-tunable operation on these transitions is discussed.

About this research paper

What this paper is about

A novel two-step optical pumping technique is described for creating line-tunable laser emission in the 2ν2–ν2 band of NH3. Two TE CO2 lasers operating on the R(30) and P(24) 9-μm transitions are used to pump the sR(5,0) and 2sR(4,3) NH3 transitions respectively, and lasing is observed on 11 different NH3 lines having wavelengths from 16 to 21 μm. This pumping technique relies on rapid rotational thermalization in the vibrational levels to enhance the pump absorptions and distribute the population inversion. The possibility of producing cw line-tunable operation on these transitions is discussed.

Why it matters

OpenAlex reports 9 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

A novel two-step optical pumping technique is described for creating line-tunable laser emission in the 2ν2–ν2 band of NH3. Two TE CO2 lasers operating on the R(30) and P(24) 9-μm transitions are used to pump the sR(5,0) and 2sR(4,3) NH3 transitions respectively, and lasing is observed on 11 different NH3 lines having wavelengths from 16 to 21 μm. This pumping technique relies on rapid rotational thermalization in the vibrational levels to enhance the pump absorptions and distribute the population inversion. The possibility of producing cw line-tunable operation on these transitions is discussed.

Key concepts: Lasing threshold, Optical pumping, Population inversion, Laser, Materials science, Laser pumping, Wavelength, Line (geometry)

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
16–21-μm line-tunable NH3 laser produced by two-step optical pumping — Research Paper | ScholarLens