Abstract

<p>Problems relating to the design of a far infrared spectrograph are discussed. The design of a spectrograph which was constructed is described. A platinum strip coated with thorium-oxide is used as a source. Discrimination against short-wave radiation is provided by quartz, paraffin, turpentine soot, a compensated potassium bromide chopper, reststrahlen plates, and a grating (used as a reflection filter) with groove separation somewhat less than the wavelength being investigated. As a dispersing device, an echelette grating ruled with 180 lines per inch is used., The detector is a Golay pneumatic cell. A low noise vacuumtube amplifier renders the signal from the detector suitable for operation of a strip-chart recorder. The spectrograph is evacuable.</p><p>Spectral operating characteristics of the instrument are shown in ammonia and atmospheric water vapor spectra in the region between 45 and 150 microns. Absorption lines separated by less than 1cm<sup>-1</sup> are well resolved throughout this spectral region.</p>

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  1. H. M. Randall, Revs. Modern Phys. 10, 72 (1938).
  2. H. M. Randall, Rev. Sci. Instr. 3, 196 (1932).
  3. H. M. Randall and F. A. Firestone, Rev. Sci. Instr. 9, 404 (1938).
  4. Randall, Dennison, Ginsburg, and Weber, Phys. Rev. 52, 160 (1937).
  5. N. Wright and H. M. Randall, Phys. Rev. 44, 391 (1933).
  6. Fuson, Randall, and Dennison, Phys. Rev. 56, 982 (1939).
  7. D. G. Burkhard, "Molecular structure and far infrared spectrum of methyl alcohol," dissertation (University of Michigan, Ann Arbor, Michigan, 1950).
  8. T. King McCubbin, Jr., and Wm. M. Sinton, J. Opt. Soc. Am. 40, 537 (1950).
  9. J. Strong, Phys. Today 4, No. 4, 14 (April, 1951).
  10. T. King McCubbin, Jr., "Far infrared spectroscopy from 100 to 700 microns," dissertation (The Johns Hopkins University, Baltimore, Maryland, July, 1951).
  11. R. B. Barnes, Rev. Sci. Instr. 5, 237 (1934).
  12. Barnes, Benedict, and Lewis, Phys. Rev. 47, 918 (1935).
  13. R. B. Barnes, Phys. Rev. 47, 658 (1935).
  14. Barnes, Benedict, and Lewis, Phys. Rev. 47, 129 (1935).
  15. R. M. Badger and C. H. Cartwright, Phys. Rev. 33, 692 (1929).
  16. R. B. Barnes, Phys. Rev. 39, 562 (1932).
  17. M. Czerny, Z. Physik 44, 235 (1927).
  18. M. Czerny, Z. Physik 34, 227 (1925).
  19. R. B. Barnes and M. Czerny, Z. Physik 72, 447 (1931).
  20. C. H. Cartwright and M. Czerny, Z. Physik 90, 457 (1934).
  21. C. H. Cartwright, Z. Physik 90, 480 (1934).
  22. C. H. Cartwright, Nature 135, 872 (1935).
  23. C. H. Cartwright, Nature 136, 181 (1935).
  24. B. Koch, Ann. Physik 33, 335 (1938).
  25. W. Dahlke, Z. Physik 114, 205 (1939).
  26. W. Dahlke, Z. Physik 114, 672 (1939).
  27. W. Dahlke, Z. Physik 115, 1 (1940).
  28. O. Maar, Z. Physik 113, 415 (1939).
  29. H. Hopf, Z. Physik 116, 310 (1940).
  30. J. Strong, Procedures in Experimental Physics (Prentice-Hall, Inc., New York, 1938), p. 368.
  31. J. U. White, J. Opt. Soc. Am. 37, 713 (1947).
  32. M. J. E. Golay, Rev. Sci. Instr. 18, 357 (1947).
  33. M. J. E. Golay, Rev. Sci. Instr. 18, 347 (1947).
  34. M. J. E. Golay, Rev. Sci. Instr. 20, 816 (1949).
  35. L. C. Roess, Rev. Sci. Instr. 16, 172 (1945).

Badger, R. M.

R. M. Badger and C. H. Cartwright, Phys. Rev. 33, 692 (1929).

Barnes, R. B.

R. B. Barnes and M. Czerny, Z. Physik 72, 447 (1931).

R. B. Barnes, Rev. Sci. Instr. 5, 237 (1934).

R. B. Barnes, Phys. Rev. 47, 658 (1935).

R. B. Barnes, Phys. Rev. 39, 562 (1932).

Burkhard, D. G.

D. G. Burkhard, "Molecular structure and far infrared spectrum of methyl alcohol," dissertation (University of Michigan, Ann Arbor, Michigan, 1950).

Cartwright, C. H.

C. H. Cartwright, Nature 135, 872 (1935).

C. H. Cartwright, Z. Physik 90, 480 (1934).

R. M. Badger and C. H. Cartwright, Phys. Rev. 33, 692 (1929).

C. H. Cartwright and M. Czerny, Z. Physik 90, 457 (1934).

C. H. Cartwright, Nature 136, 181 (1935).

Czerny, M.

C. H. Cartwright and M. Czerny, Z. Physik 90, 457 (1934).

M. Czerny, Z. Physik 44, 235 (1927).

R. B. Barnes and M. Czerny, Z. Physik 72, 447 (1931).

M. Czerny, Z. Physik 34, 227 (1925).

Dahlke, W.

W. Dahlke, Z. Physik 114, 205 (1939).

W. Dahlke, Z. Physik 114, 672 (1939).

W. Dahlke, Z. Physik 115, 1 (1940).

Firestone, F. A.

H. M. Randall and F. A. Firestone, Rev. Sci. Instr. 9, 404 (1938).

Golay, M. J. E.

M. J. E. Golay, Rev. Sci. Instr. 18, 347 (1947).

M. J. E. Golay, Rev. Sci. Instr. 20, 816 (1949).

M. J. E. Golay, Rev. Sci. Instr. 18, 357 (1947).

Hopf, H.

H. Hopf, Z. Physik 116, 310 (1940).

Koch, B.

B. Koch, Ann. Physik 33, 335 (1938).

Maar, O.

O. Maar, Z. Physik 113, 415 (1939).

McCubbin, Jr., T. King

T. King McCubbin, Jr., and Wm. M. Sinton, J. Opt. Soc. Am. 40, 537 (1950).

T. King McCubbin, Jr., "Far infrared spectroscopy from 100 to 700 microns," dissertation (The Johns Hopkins University, Baltimore, Maryland, July, 1951).

Randall, H. M.

H. M. Randall and F. A. Firestone, Rev. Sci. Instr. 9, 404 (1938).

N. Wright and H. M. Randall, Phys. Rev. 44, 391 (1933).

H. M. Randall, Revs. Modern Phys. 10, 72 (1938).

H. M. Randall, Rev. Sci. Instr. 3, 196 (1932).

Roess, L. C.

L. C. Roess, Rev. Sci. Instr. 16, 172 (1945).

Sinton, Wm. M.

T. King McCubbin, Jr., and Wm. M. Sinton, J. Opt. Soc. Am. 40, 537 (1950).

Strong, J.

J. Strong, Procedures in Experimental Physics (Prentice-Hall, Inc., New York, 1938), p. 368.

J. Strong, Phys. Today 4, No. 4, 14 (April, 1951).

White, J. U.

J. U. White, J. Opt. Soc. Am. 37, 713 (1947).

Wright, N.

N. Wright and H. M. Randall, Phys. Rev. 44, 391 (1933).

Other (35)

H. M. Randall, Revs. Modern Phys. 10, 72 (1938).

H. M. Randall, Rev. Sci. Instr. 3, 196 (1932).

H. M. Randall and F. A. Firestone, Rev. Sci. Instr. 9, 404 (1938).

Randall, Dennison, Ginsburg, and Weber, Phys. Rev. 52, 160 (1937).

N. Wright and H. M. Randall, Phys. Rev. 44, 391 (1933).

Fuson, Randall, and Dennison, Phys. Rev. 56, 982 (1939).

D. G. Burkhard, "Molecular structure and far infrared spectrum of methyl alcohol," dissertation (University of Michigan, Ann Arbor, Michigan, 1950).

T. King McCubbin, Jr., and Wm. M. Sinton, J. Opt. Soc. Am. 40, 537 (1950).

J. Strong, Phys. Today 4, No. 4, 14 (April, 1951).

T. King McCubbin, Jr., "Far infrared spectroscopy from 100 to 700 microns," dissertation (The Johns Hopkins University, Baltimore, Maryland, July, 1951).

R. B. Barnes, Rev. Sci. Instr. 5, 237 (1934).

Barnes, Benedict, and Lewis, Phys. Rev. 47, 918 (1935).

R. B. Barnes, Phys. Rev. 47, 658 (1935).

Barnes, Benedict, and Lewis, Phys. Rev. 47, 129 (1935).

R. M. Badger and C. H. Cartwright, Phys. Rev. 33, 692 (1929).

R. B. Barnes, Phys. Rev. 39, 562 (1932).

M. Czerny, Z. Physik 44, 235 (1927).

M. Czerny, Z. Physik 34, 227 (1925).

R. B. Barnes and M. Czerny, Z. Physik 72, 447 (1931).

C. H. Cartwright and M. Czerny, Z. Physik 90, 457 (1934).

C. H. Cartwright, Z. Physik 90, 480 (1934).

C. H. Cartwright, Nature 135, 872 (1935).

C. H. Cartwright, Nature 136, 181 (1935).

B. Koch, Ann. Physik 33, 335 (1938).

W. Dahlke, Z. Physik 114, 205 (1939).

W. Dahlke, Z. Physik 114, 672 (1939).

W. Dahlke, Z. Physik 115, 1 (1940).

O. Maar, Z. Physik 113, 415 (1939).

H. Hopf, Z. Physik 116, 310 (1940).

J. Strong, Procedures in Experimental Physics (Prentice-Hall, Inc., New York, 1938), p. 368.

J. U. White, J. Opt. Soc. Am. 37, 713 (1947).

M. J. E. Golay, Rev. Sci. Instr. 18, 357 (1947).

M. J. E. Golay, Rev. Sci. Instr. 18, 347 (1947).

M. J. E. Golay, Rev. Sci. Instr. 20, 816 (1949).

L. C. Roess, Rev. Sci. Instr. 16, 172 (1945).

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