Absolute frequency measurement for the emission transitions of molecular iodine in the 982 - 985 nm range

Matyugin, Yu A; Ignatovich, S M; Kuznetsov, Sergei A; Nesterenko, M I; Okhapkin, M V; Pivtsov, V S; Skvortsov, Mikhail N; Bagaev, Sergei N

doi:10.1070/QE2012V042N03ABEH014799

Title: Absolute frequency measurement for the emission transitions of molecular iodine in the 982 - 985 nm range

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Abstract

We report high-precision frequency measurements of the separate hyperfine structure (HFS) components of the emission B - X system transitions of {sup 127}I{sub 2} molecules in the 982 - 985 nm range. To resolve the HFS of the emission lines, advantage was taken of the method of three-level laser spectroscopy. The function of exciting radiation was fulfilled by the second harmonic of a cw Nd : YAG laser, and the probe radiation in the 968 - 998 nm range was generated by an external-cavity diode laser. The output Nd : YAG laser frequency was locked to an HFS component of the absorption transition and the probing laser radiation to the emission transition component. When both frequencies were locked to HFS components with a common upper level, the output diode laser frequency was precisely equal to the emission transition frequency. The output frequency of the thus stabilised diode laser was measured with the help of a femtosecond optical frequency synthesiser based on a Ti : sapphire laser. We present the results of the absolute frequency measurements of 20 HFS components belonging to six vibrational - rotational transitions of the B - X system of iodine [R56(32 - 48)a1, P58(32 - 48)a1,more »« less

Authors:

Matyugin, Yu A; Ignatovich, S M; Kuznetsov, Sergei A; Nesterenko, M I; Okhapkin, M V; Pivtsov, V S; Skvortsov, Mikhail N; Bagaev, Sergei N ^[1]

Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)

Publication Date:: Sat Mar 31 00:00:00 EDT 2012

OSTI Identifier:: 22044002

Resource Type:: Journal Article

Journal Name:: Quantum Electronics (Woodbury, N.Y.)

Additional Journal Information:: Journal Volume: 42; Journal Issue: 3; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7818

Country of Publication:: United States

Language:: English

Subject:: 74 ATOMIC AND MOLECULAR PHYSICS; ABSORPTION; ACCURACY; EMISSION; FREQUENCY MEASUREMENT; HYPERFINE STRUCTURE; INSTABILITY; IODINE; LASER RADIATION; LASER SPECTROSCOPY; MOLECULES; NEODYMIUM LASERS; SAPPHIRE

Citation Formats


                    Matyugin, Yu A, Ignatovich, S M, Kuznetsov, Sergei A, Nesterenko, M I, Okhapkin, M V, Pivtsov, V S, Skvortsov, Mikhail N, and Bagaev, Sergei N. Absolute frequency measurement for the emission transitions of molecular iodine in the 982 - 985 nm range.  United States: N. p., 2012. 
        Web.  doi:10.1070/QE2012V042N03ABEH014799.

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                    Matyugin, Yu A, Ignatovich, S M, Kuznetsov, Sergei A, Nesterenko, M I, Okhapkin, M V, Pivtsov, V S, Skvortsov, Mikhail N, & Bagaev, Sergei N. Absolute frequency measurement for the emission transitions of molecular iodine in the 982 - 985 nm range.  United States.  https://doi.org/10.1070/QE2012V042N03ABEH014799

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                    Matyugin, Yu A, Ignatovich, S M, Kuznetsov, Sergei A, Nesterenko, M I, Okhapkin, M V, Pivtsov, V S, Skvortsov, Mikhail N, and Bagaev, Sergei N. 2012.  
        "Absolute frequency measurement for the emission transitions of molecular iodine in the 982 - 985 nm range".  United States.  https://doi.org/10.1070/QE2012V042N03ABEH014799.

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@article{osti_22044002,

  title        = {Absolute frequency measurement for the emission transitions of molecular iodine in the 982 - 985 nm range},

  author       = {Matyugin, Yu A and Ignatovich, S M and Kuznetsov, Sergei A and Nesterenko, M I and Okhapkin, M V and Pivtsov, V S and Skvortsov, Mikhail N and Bagaev, Sergei N},

  abstractNote = {We report high-precision frequency measurements of the separate hyperfine structure (HFS) components of the emission B - X system transitions of {sup 127}I{sub 2} molecules in the 982 - 985 nm range. To resolve the HFS of the emission lines, advantage was taken of the method of three-level laser spectroscopy. The function of exciting radiation was fulfilled by the second harmonic of a cw Nd : YAG laser, and the probe radiation in the 968 - 998 nm range was generated by an external-cavity diode laser. The output Nd : YAG laser frequency was locked to an HFS component of the absorption transition and the probing laser radiation to the emission transition component. When both frequencies were locked to HFS components with a common upper level, the output diode laser frequency was precisely equal to the emission transition frequency. The output frequency of the thus stabilised diode laser was measured with the help of a femtosecond optical frequency synthesiser based on a Ti : sapphire laser. We present the results of the absolute frequency measurements of 20 HFS components belonging to six vibrational - rotational transitions of the B - X system of iodine [R56(32 - 48)a1, P58(32 - 48)a1, P85(33 - 48)a1, R87(33 - 48a1, R88(33 - 48)a10] and all 15 components of the R86(33 - 48) line. The relative measurement uncertainty is equal to 7 Multiplication-Sign 10{sup -10} and is determined by the frequency instability of the diode laser radiation.},

  doi          = {10.1070/QE2012V042N03ABEH014799},

  url          = {https://www.osti.gov/biblio/22044002},
  journal      = {Quantum Electronics (Woodbury, N.Y.)},

  issn         = {1063-7818},

  number       = 3,

  volume       = 42,

  place        = {United States},

  year         = {Sat Mar 31 00:00:00 EDT 2012},

  month        = {Sat Mar 31 00:00:00 EDT 2012}

}

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