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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 1, Iss. 3 — May. 1, 1962
  • pp: 303–307

Threshold Condition of Masers for Higher Frequencies

Koichi Shimoda  »View Author Affiliations


Applied Optics, Vol. 1, Issue 3, pp. 303-307 (1962)
http://dx.doi.org/10.1364/AO.1.000303


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Abstract

After a brief discussion on the quality factor of a parallel-plate interferometer, threshold conditions of oscillation for a beam maser, a solid-state maser, and a gas maser are calculated from a unified theory. Operation of a gas maser on the line broadened by both collision and the Doppler effect is discussed. The rate of producing population inversion is calculated in terms of gas pressure, quantum efficiency, saturation parameter, and the intensity of excitation. Finally, the optimum condition is discussed.

© 1962 Optical Society of America

History
Original Manuscript: September 18, 1961
Published: May 1, 1962

Citation
Koichi Shimoda, "Threshold Condition of Masers for Higher Frequencies," Appl. Opt. 1, 303-307 (1962)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-1-3-303


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References

  1. A. Javan, W. R. Bennett, D. R. Herriott, Phys. Rev. Letters 6, 106 (1961). [CrossRef]
  2. A. L. Schawlow, C. H. Townes, Phys. Rev. 112, 1940 (1958). [CrossRef]
  3. K. Shimoda, Sci. Papers Inst. Phys. Chem. Research (Tokyo) 55, 1 (1961).
  4. K. Shimoda, Sci. Papers Inst. Phys. Chem. Research (Tokyo)55, No. 3, (1961), to be published.
  5. T. Yajima, J. Phys. Soc. Japan 16 (1594); ibid. No. 9 (1961).
  6. K. Shimoda, T. C. Wang, C. H. Townes, Phys. Rev. 102, 1308 (1956). [CrossRef]
  7. R. Karplus, J. Schwinger, Phys. Rev. 73, 1020 (1948). [CrossRef]

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