A Tunable Infrared Coherent Source for the 2 to 25 Micron Region and Beyond



A novel method of generating coherent, widely tunable infrared radiation is described. The method uses a four-wave parametric mixing process in alkali metal vapors. The tuning range presently spans the 2 to 25 micron region. The possibilities of extending the tuning range are discussed.


Tuning Range Metal Vapor Alkali Metal Atom Nonlinear Polarization Frequency Versus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Two recent publications on second order difference mixing are C. D. Decker and F. K. Tittel, Appl. Phys. Letters 22, 411 (1973), and R. L. Aggarwal, B. Lax and G. Favrot, Appl. Phys. Letters 22, 329 (1973).ADSCrossRefGoogle Scholar
  2. 2.
    T. W. Hansch, Appl. Optics 11,895 (1972).ADSCrossRefGoogle Scholar
  3. 3.
    C. R. Vidal and J. Cooper, J. Appl. Phys. 40, 3370 (1969).ADSCrossRefGoogle Scholar
  4. 4.
    The method used to derive this expression is outlined in N. Bloemhergen, Nonlinear Optics, (W. A. Benjamin, New York, 1965), pp. 37–41.Google Scholar
  5. 5.
    J. J. Wynne and N. Bloembergen, Phys. Rev. 178, 1295 (1969).ADSCrossRefGoogle Scholar
  6. 6.
    P. P. Sorokin, J. J. Wynne and J. R. Lankar, Appl. Phys. Letters 22, 342 (1973).ADSCrossRefGoogle Scholar
  7. 7.
    C. R. Vidal and M. M. Hessel, J. Appl. Phys. 43, 2776 (1972).ADSCrossRefGoogle Scholar
  8. 8.
    E. D. Stokes, F. B. Dunning, R. F. Stebbings, G. K. Walters and R. D. Rundel, Optics Commun. 5, 267 (1972).ADSCrossRefGoogle Scholar
  9. 9.
    See. for example, Ref. 3, p. 82.Google Scholar
  10. 10.
    B. Godard, 1973 IEEE/OSA Conference on Laser Engineering and Applications, Paper 4.5.Google Scholar

Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  1. 1.IBM Thomas J. Watson Research CenterYorktown HeightsUSA

Personalised recommendations