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Submillisecond Conformational Changes in Proteins Resolved by Photothermal Beam Deflection
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Versatile, isotopically specific hydrogen halide TEA pin laser.

A B Horwitz1, S R Leone

  • 1Department of Chemistry, University of Southern California, University Park, Los Angeles, California 90007, USA.

The Review of Scientific Instruments
|July 1, 1979
PubMed
Summary
This summary is machine-generated.

A new, versatile chemical laser design for hydrogen/deuterium halide molecules is presented. This easily constructed device achieves high pulse energies, enabling isotopic specificity for chemical and physical dynamics research.

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Area of Science:

  • Chemical Physics
  • Laser Spectroscopy
  • Molecular Dynamics

Background:

  • Development of efficient laboratory-scale chemical lasers is crucial for various scientific investigations.
  • Previous designs for hydrogen/deuterium halide chemical lasers have limitations in terms of construction ease and versatility.

Purpose of the Study:

  • To present a practical and easily constructed design for a laboratory hydrogen/deuterium halide chemical transverse-excited atmospheric (TEA) laser.
  • To demonstrate the versatility and performance capabilities of the developed laser system.

Main Methods:

  • Detailed description of the construction and design of the chemical TEA laser.
  • Experimental characterization of laser output energy in both broadband and single-line modes.
  • Demonstration of isotopically specific oscillation using various hydrogen and deuterium halide isotopes.

Main Results:

  • Achieved output energies exceeding 50 mJ/pulse broadband and 5 mJ/pulse on single lines.
  • Successfully demonstrated isotopically specific oscillation on the v=1-->0 band for H35Cl, H37Cl, D35Cl, D37Cl, H79Br, H81Br, D79Br, and D81Br.
  • Highlighted the ease of conversion between different laser species.

Conclusions:

  • The presented design offers a highly versatile and practical tool for laboratory studies in chemical and physical dynamics.
  • The laser's performance and isotopic tunability make it suitable for a wide range of research applications.
  • The review of advances in HCl and HBr chemical TEA lasers provides valuable context for this development.