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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 51, Iss. 12 — Dec. 1, 1961
  • pp: 1408–1410

Long-Wavelength Photoeffect in Mercury Selenide

M. D. BLUE, J. H. GARFUNKEL, and P. W. KRUSE  »View Author Affiliations

JOSA, Vol. 51, Issue 12, pp. 1408-1410 (1961)

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An infrared detector using a photoeffect in mercury selenide is described which responds from the visible to 15 µ. Although the detector construction and sample geometry are similar to that employed in the photo-electromagnetic (PEM) effect, performance differs from that expected of the PEM effect. The spectral response for constant power input per unit wavelength interval peaks in the visible and is wavelength independent in the interval from 3 to 15 µ. The frequency response indicates a detector response time of 150 µsec. A thermal response mechanism is proposed.

M. D. BLUE, J. H. GARFUNKEL, and P. W. KRUSE, "Long-Wavelength Photoeffect in Mercury Selenide," J. Opt. Soc. Am. 51, 1408-1410 (1961)

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  1. M. D. Blue and P. W. Kruse (to be published).
  2. P. W. Kruse, J. Appl. Phys. 30, 770 (1959); Electronics 33, 62 (1960).
  3. D*(500°K, ƒ, 1), the detectivity, is a figure of merit relating the extrapolated signal-to-noise ratio in a 1 cps bandwidth centered at frequency ƒ per watt of radiant flux from a 500°K blackbody for a detector of 1 cm2 area.
  4. I. I. Sochard and J. H. Becker, Bull. Am. Phys. Soc. 3, 114 (1958); 4, 34 (1959); NBS Rept. No. 6437 (June, 1959); J. H. Becker, J. Appl. Phys. 31, 612 (1960).
  5. E. H. Putley, Proc, Phys. Soc, (London) B68, 35 (1955).
  6. W . W. Gärtner, Phys. Rev. 122, 419 (1961).
  7. P. J. Price, Phil. Mag. 16, 1252 (1955).

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