Abstract

Real refractive indices for amorphous and hexagonal water ices were measured between 1610 and 3200 Å, and for amorphous ammonia ice between 1925 and 3200 Å. Upper limits on the absorption coefficients for these ices were established from extinction-coefficient measurements made at 1475 Å for water ices and at 1760 Å for amorphous ammonia ice. Amorphous ices were deposited from the gaseous phase onto a gold-coated sapphire substrate that was cooled to 77 K. Hexagonal water ice was formed by deposition at 155 K. The ice films were illuminated with monochromatic light at two angles of incidence. Interference-fringe periods, which were observed as the film thickness increased at a constant rate, were used to determine the real refractive index of the film. Damping of the fringe amplitude, as the film thickness increased, was used to establish the extinction coefficients.

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  1. R. C. Anderson, J. G. Pipes, A. L. Broadfoot, and L. Wallace, J. Atmos. Sci. 28, 874 (1969).
  2. J. G. Pipes, E. V. Browell, and R. C. Anderson, Icarus 21, 283 (1974).
  3. C. G. Pilcher, C. R. Chapman, L. A. Kebofshy, and H. H. Kieffer, Science 167, 1372 (1970).
  4. G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 14 (1970).
  5. G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 80 (1970).
  6. C. B. Pilcher, S. T. Ridgway, and T. B. McCord, Science 178, 1087 (1972).
  7. D. L. Judge and R. W. Carlson, Science 183, 317 (1974).
  8. T. V. Johnson and T. B. McCord, Icarus 13, 37 (1970).
  9. F. W. Taylor, J. Atmos. Sci. 30, 677 (1973).
  10. J. Daniels, Optics Commun. 3, 240 (1971).
  11. K. Dressler and O. Schnepp, J. Chem. Phys. 33, 270 (1960).
  12. O. Schnepp and K. Dressler, J. Chem. Phys. 33, 49 (1960).
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  14. F. A. Mauer, L. H. Bolz, H. S. Peiser, and H. F. McMurdie, private communication (1972).
  15. K. E. Tempelmeyer and D. R. Mills, Jr., J. Appl. Phys. 39, 2968 (1968).
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  22. J. E. Marcoux, J. Opt. Soc. Am. 59, 998 (1969).

Alperovich, L. I.

S. I. Popova, L. I. Alperovich, and V. M. Zolotarev, Opt. Spektrosk. 32, 547 (1972) [Opt. Spectrosc. 32, 288 (1972)].

Anderson, R. C.

J. G. Pipes, E. V. Browell, and R. C. Anderson, Icarus 21, 283 (1974).

R. C. Anderson, J. G. Pipes, A. L. Broadfoot, and L. Wallace, J. Atmos. Sci. 28, 874 (1969).

Bolz, L. H.

F. A. Mauer, L. H. Bolz, H. S. Peiser, and H. F. McMurdie, private communication (1972).

Broadfoot, A. L.

R. C. Anderson, J. G. Pipes, A. L. Broadfoot, and L. Wallace, J. Atmos. Sci. 28, 874 (1969).

Browell, E. V.

E. V. Browell, UV Optical Constants of Water and Ammonia Ices, dissertation University of Florida (June 1974), University Microfilm Order No. 75–3478.

J. G. Pipes, E. V. Browell, and R. C. Anderson, Icarus 21, 283 (1974).

Carlson, R. W.

D. L. Judge and R. W. Carlson, Science 183, 317 (1974).

Chapman, C. R.

C. G. Pilcher, C. R. Chapman, L. A. Kebofshy, and H. H. Kieffer, Science 167, 1372 (1970).

Cruikshank, D. P.

G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 80 (1970).

G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 14 (1970).

Daniels, J.

J. Daniels, Optics Commun. 3, 240 (1971).

Dowell, L. G.

L. G. Dowell and A. P. Rinfret, Nature 188, 1144 (1960).

Dressler, K.

K. Dressler and O. Schnepp, J. Chem. Phys. 33, 270 (1960).

O. Schnepp and K. Dressler, J. Chem. Phys. 33, 49 (1960).

Eckert, E. R. G.

M. Ruiz-Urbieta, E. M. Sparrow, and E. R. G. Eckert, J. Opt. Soc. Am. 61, 351 (1971).

Fink, U.

G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 80 (1970).

G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 14 (1970).

Greenberg, J. M.

J. M. Greenberg, Stars and Stellar Systems: Compendium of Astronautics and Astrophysics (University of Chicago Press, Chicago, 1968), Vol. 7, Ch. 6.

Harrick, N. J.

N. J. Harrick, Appl. Opt. 10, 2344 (1971).

Johnson, T. V.

T. V. Johnson and T. B. McCord, Icarus 13, 37 (1970).

Judge, D. L.

D. L. Judge and R. W. Carlson, Science 183, 317 (1974).

Kebofshy, L. A.

C. G. Pilcher, C. R. Chapman, L. A. Kebofshy, and H. H. Kieffer, Science 167, 1372 (1970).

Kieffer, H. H.

C. G. Pilcher, C. R. Chapman, L. A. Kebofshy, and H. H. Kieffer, Science 167, 1372 (1970).

Kuiper, G. P.

G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 80 (1970).

G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 14 (1970).

Marcoux, J. E.

J. E. Marcoux, J. Opt. Soc. Am. 59, 998 (1969).

Mauer, F. A.

F. A. Mauer, L. H. Bolz, H. S. Peiser, and H. F. McMurdie, private communication (1972).

McCord, T. B.

T. V. Johnson and T. B. McCord, Icarus 13, 37 (1970).

C. B. Pilcher, S. T. Ridgway, and T. B. McCord, Science 178, 1087 (1972).

McMurdie, H. F.

F. A. Mauer, L. H. Bolz, H. S. Peiser, and H. F. McMurdie, private communication (1972).

Mills, Jr., D. R.

K. E. Tempelmeyer and D. R. Mills, Jr., J. Appl. Phys. 39, 2968 (1968).

Muller, P. R.

B. A. Seiber, A. M. Smith, B. E. Wood, and P. R. Muller, Appl. Opt. 10, 2086 (1971).

Peiser, H. S.

F. A. Mauer, L. H. Bolz, H. S. Peiser, and H. F. McMurdie, private communication (1972).

Pilcher, C. B.

C. B. Pilcher, S. T. Ridgway, and T. B. McCord, Science 178, 1087 (1972).

Pilcher, C. G.

C. G. Pilcher, C. R. Chapman, L. A. Kebofshy, and H. H. Kieffer, Science 167, 1372 (1970).

Pipes, J. G.

R. C. Anderson, J. G. Pipes, A. L. Broadfoot, and L. Wallace, J. Atmos. Sci. 28, 874 (1969).

J. G. Pipes, E. V. Browell, and R. C. Anderson, Icarus 21, 283 (1974).

Popova, S. I.

S. I. Popova, L. I. Alperovich, and V. M. Zolotarev, Opt. Spektrosk. 32, 547 (1972) [Opt. Spectrosc. 32, 288 (1972)].

Ridgway, S. T.

C. B. Pilcher, S. T. Ridgway, and T. B. McCord, Science 178, 1087 (1972).

Rinfret, A. P.

L. G. Dowell and A. P. Rinfret, Nature 188, 1144 (1960).

Ruiz-Urbieta, M.

M. Ruiz-Urbieta, E. M. Sparrow, and E. R. G. Eckert, J. Opt. Soc. Am. 61, 351 (1971).

Schnepp, O.

O. Schnepp and K. Dressler, J. Chem. Phys. 33, 49 (1960).

K. Dressler and O. Schnepp, J. Chem. Phys. 33, 270 (1960).

Seiber, B. A.

B. A. Seiber, A. M. Smith, B. E. Wood, and P. R. Muller, Appl. Opt. 10, 2086 (1971).

Smith, A. M.

B. A. Seiber, A. M. Smith, B. E. Wood, and P. R. Muller, Appl. Opt. 10, 2086 (1971).

Sparrow, E. M.

M. Ruiz-Urbieta, E. M. Sparrow, and E. R. G. Eckert, J. Opt. Soc. Am. 61, 351 (1971).

Taylor, F. W.

F. W. Taylor, J. Atmos. Sci. 30, 677 (1973).

Tempelmeyer, K. E.

K. E. Tempelmeyer and D. R. Mills, Jr., J. Appl. Phys. 39, 2968 (1968).

Wallace, L.

R. C. Anderson, J. G. Pipes, A. L. Broadfoot, and L. Wallace, J. Atmos. Sci. 28, 874 (1969).

Wood, B. E.

B. A. Seiber, A. M. Smith, B. E. Wood, and P. R. Muller, Appl. Opt. 10, 2086 (1971).

Zolotarev, V. M.

S. I. Popova, L. I. Alperovich, and V. M. Zolotarev, Opt. Spektrosk. 32, 547 (1972) [Opt. Spectrosc. 32, 288 (1972)].

Other (22)

R. C. Anderson, J. G. Pipes, A. L. Broadfoot, and L. Wallace, J. Atmos. Sci. 28, 874 (1969).

J. G. Pipes, E. V. Browell, and R. C. Anderson, Icarus 21, 283 (1974).

C. G. Pilcher, C. R. Chapman, L. A. Kebofshy, and H. H. Kieffer, Science 167, 1372 (1970).

G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 14 (1970).

G. P. Kuiper, D. P. Cruikshank, and U. Fink, Sky and Telescope 39, 80 (1970).

C. B. Pilcher, S. T. Ridgway, and T. B. McCord, Science 178, 1087 (1972).

D. L. Judge and R. W. Carlson, Science 183, 317 (1974).

T. V. Johnson and T. B. McCord, Icarus 13, 37 (1970).

F. W. Taylor, J. Atmos. Sci. 30, 677 (1973).

J. Daniels, Optics Commun. 3, 240 (1971).

K. Dressler and O. Schnepp, J. Chem. Phys. 33, 270 (1960).

O. Schnepp and K. Dressler, J. Chem. Phys. 33, 49 (1960).

L. G. Dowell and A. P. Rinfret, Nature 188, 1144 (1960).

F. A. Mauer, L. H. Bolz, H. S. Peiser, and H. F. McMurdie, private communication (1972).

K. E. Tempelmeyer and D. R. Mills, Jr., J. Appl. Phys. 39, 2968 (1968).

M. Ruiz-Urbieta, E. M. Sparrow, and E. R. G. Eckert, J. Opt. Soc. Am. 61, 351 (1971).

E. V. Browell, UV Optical Constants of Water and Ammonia Ices, dissertation University of Florida (June 1974), University Microfilm Order No. 75–3478.

N. J. Harrick, Appl. Opt. 10, 2344 (1971).

B. A. Seiber, A. M. Smith, B. E. Wood, and P. R. Muller, Appl. Opt. 10, 2086 (1971).

J. M. Greenberg, Stars and Stellar Systems: Compendium of Astronautics and Astrophysics (University of Chicago Press, Chicago, 1968), Vol. 7, Ch. 6.

S. I. Popova, L. I. Alperovich, and V. M. Zolotarev, Opt. Spektrosk. 32, 547 (1972) [Opt. Spectrosc. 32, 288 (1972)].

J. E. Marcoux, J. Opt. Soc. Am. 59, 998 (1969).

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