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Generation of 1.30- to 1.55-μm Tunable Radiation from First Stokes Raman Shifting in Hydrogen
Journal article   Peer reviewed

Generation of 1.30- to 1.55-μm Tunable Radiation from First Stokes Raman Shifting in Hydrogen

Kenneth W. Aniolek, David L. Miller, Nicholas P. Cernansky and Kevin G. Owens
Applied spectroscopy, v 51(6), pp 820-826
Jun 1997
DOI: https://doi.org/10.1366/0003702971941098
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Raman shifting to the near-infrared, when possible, provides a simple and economical alternative to the optical parametric oscillator (OPO) or difference frequency mixing approach. We report the production of 1.30- to 1.55-μm radiation from first Stokes Raman shifting in a single-pass, open (no capillary waveguide), hydrogen-filled Raman cell (constructed in-house) pumped with a Nd:YAG/dye laser combination operating near 900 nm. A maximum of 10 mJ (19% efficiency) of first Stokes energy was measured for the highest cell pressure (490 psia) and input pulse energy (53 mJ). The quality of the first Stokes output is similar to the dye laser output as indicated by polarization, shot-to-shot energy fluctuation, beam diameter, and linewidth. A characterization of the Stokes and anti-Stokes output was also conducted including one-dimensional spatial intensity profiles and output line dependence on input pulse energy and cell pressure. A large first Stokes conversion efficiency has been attributed to little production of higher-order Stokes and anti-Stokes lines.

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3 citations in Web of Science
5 citations in Scopus

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Web of Science research areas
Instruments & Instrumentation
Spectroscopy
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