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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 48, Iss. 6 — Jun. 1, 1958
  • pp: 388–389

Infrared Phase-Contrast Refractometer

W. S. RODNEY and E. DJURLE  »View Author Affiliations

JOSA, Vol. 48, Issue 6, pp. 388-389 (1958)

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A phase-contrast refractometer for measurements in the infrared has been constructed. The optical and mechanical arrangement is discussed and a brief description of the experimental procedure is given. A value for (n-1) of air of 0.00026834 was obtained for the 1.014-µ line of mercury. The standard deviation of the mean is ±0.7%.

W. S. RODNEY and E. DJURLE, "Infrared Phase-Contrast Refractometer," J. Opt. Soc. Am. 48, 388-389 (1958)

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  1. E. Ingelstam, Nature 168, 960 (1951).
  2. E. Ingelstam, Arkiv. Fysik 6, 29 (1953).
  3. E. Djurle, Appl. Sci. Research B4 (1954).
  4. W. S. Rodney and E. Djurle, Report October 30, 1957, Institute of Optical Research, Stockholm 70, Sweden.
  5. B. Edlén, J. Opt. Soc. Am. 43, 339 (1953).
  6. R. Penndorf, J. Opt. Soc. Am. 47, 176 (1957).

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