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Spectroscopy of the 689 nm intercombination line of strontium using an extended-cavity InGaP/InGaAIP diode laser

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Abstract

A visible diode laser emitting at 690 nm at room temperature has been frequency-stabilized using a simple scheme based on optical feedback from a diffraction grating. The possibilities offered by these lasers for high-resolution spectroscopy are demonstrated by recording the sub-Doppler signal of the 689 nm intercombination line of strontium and resolving the hyperfine structure of the close P63 R70 (8, 4) transitions of iodine.

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Author notes

  1. M. Barsanti

    Present address: Scuola Normale Superiore, Piazza dei Cavalieri 7, Pisa, Italy

Authors and Affiliations

  1. Dipartimento di Scienze Fisiche, Università di Napoli “Federico II”, Mostra d'Oltremare Pad. 20, I-80125, Napoli, Italy

    G. M. Tino, M. Barsanti, M. de Angelis & L. Gianfrani

  2. Dipartimento di Fisica dell'Università Firenze and European Laboratory for Nonlinear Spectroscopy (LENS), Largo E. Fermi 2, I-50125, Firenze, Italy

    M. Inguscio

Authors
  1. G. M. Tino
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  2. M. Barsanti
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  3. M. de Angelis
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  4. L. Gianfrani
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  5. M. Inguscio
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Tino, G.M., Barsanti, M., de Angelis, M. et al. Spectroscopy of the 689 nm intercombination line of strontium using an extended-cavity InGaP/InGaAIP diode laser. Appl. Phys. B 55, 397–400 (1992). https://doi.org/10.1007/BF00333089

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  • DOI: https://doi.org/10.1007/BF00333089

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