Applied Physics B

, Volume 62, Issue 4, pp 333–338 | Cite as

Tunable frequency-controlled laser source in the near ultraviolet based on doubling of a semiconductor diode laser

  • M. de Angelis
  • G. M. Tino
  • P. De Natale
  • C. Fort
  • G. Modugno
  • M. Prevedelli
  • C. Zimmermann
Article

Abstract

Continuously tunable ultraviolet laser radiation at 397 nm was generated by doubling the output of a semiconductor diode laser. The fundamental radiation was provided by a 150 mW AlGaAs laser diode injected by a low-power AlGaAs laser diode which was frequency stabilized by optical feedback using a new scheme of a miniature external cavity. Second-harmonic generation was produced in a lithium-triborate crystal placed in a compact enhancement cavity. The fundamental radiation was used for sub-Doppler spectroscopy of the Ar I 4s3P00−4p1P1 transition at 795 nm; the second-harmonic radiation was used for spectroscopy of the Ca II 42S1/2−42P1/2 transition at 397 nm.

PACS

42.55.Px 42.65.Ky 

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • M. de Angelis
    • 1
  • G. M. Tino
    • 1
  • P. De Natale
    • 2
  • C. Fort
    • 2
  • G. Modugno
    • 2
  • M. Prevedelli
    • 2
  • C. Zimmermann
    • 2
  1. 1.I.N.O. Sezione di NapoliDipartimento di Scienze Fisiche dell'Università di Napoli “Federico II”NapoliItaly
  2. 2.European Laboratory for Nonlinear Spectroscopy (LENS)FirenzeItaly

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