Abstract

Methods previously developed for studying the optical properties of solid metals were modified to permit their use for studying liquid Hg and liquid Ga. Reflectivities were measured at an angle of incidence of 45° at glass-metal, quartz-metal, and NaCl-metal interfaces in the wavelength range of 0.23 µ to 13 µ. In a second type of experiment the phase change accompanying reflection at normal incidence at a mica-metal interface was measured in the range 0.4µ to 0.87µ. In this shorter wavelength range the two measured quantities, reflectivity and phase change, were used to compute the optical constants <i>n</i> and <i>k</i>. The values thus obtained agreed to within the experimental accuracy with those calculated with the Drude free electron theory. The fact that the experimentally determined reflectivity for the complete range of 0.23 µ to 13 µ agreed closely with that predicted by the Drude theory strongly suggests that the theory applies throughout this entire wavelength range.

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  1. P. Drude, Ann. Physik 39, 530 (1890).
  2. W. Meier, Ann. Physik 31, 1017 (1910).
  3. P. Erochin, Ann. Physik 39, 213 (1912).
  4. R. W. and R. C. Duncan, Phys. Rev. 1, 294 (1913).
  5. Brian O'Brien, Phys. Rev. 27, 93 (1926).
  6. L. Tronstad and C. Feacham, Proc. Roy. Soc. (London) A145, 115 (1934).
  7. H. Lange, Z. Physik 94, 650 (1935).
  8. H. Ives and H. Briggs, J. Opt. Soc. Am. 26, 240 (1936).
  9. R. Emberson, J. Opt. Soc. Am. 26, 443 (1936).
  10. J. Nathanson, J. Opt. Soc. Am. 28, 300 (1938).
  11. E. Hagen and H. Rubens, Ann. Physik 11, 873 (1903).
  12. E. Hagen and H. Rubens, Ann. Physik 1, 352 (1900).
  13. F. Seitz, Modern Theory of Solids (McGraw-Hill Book Company, Inc., New York, 1941), Chap. 17.
  14. N. F. Mott and H. Jones, The Theory of the Properties of Metals and Alloys (Oxford University Press, New York, 1936), Chap. 3.
  15. L. G. Schulz and F. R. Tangherlini, J. Opt. Soc. Am. 44, 362 (1954).
  16. L. G. Schulz, J. Opt. Soc. Am. 44, 357 (1954).
  17. Measurements on liquid Ga by J. Nathanson, Phys. Rev. 49, 887 (1936) seem to be grossly incorrect.
  18. C. V. Kent, Phys. Rev. 14, 459 (1919).
  19. International Critical Tables (McGraw-Hill Book Company, Inc., New York,_1926).
  20. Erich Einecke, Das Gallium (Edwards Brothers, Inc., Ann Arbor, 1944).
  21. P. Bridgman, Proc. Am. Acad. Arts Sci. 56, 104 (1920).
  22. J. H. Stratton, Electromnagnetic Theory (McGraw-Hill Book Company, Inc., New York, 1941), p. 520.
  23. L. G. Schulz, J. Opt. Soc. Am. 44, 540 (1954).

Bridgman, P.

P. Bridgman, Proc. Am. Acad. Arts Sci. 56, 104 (1920).

Briggs, H.

H. Ives and H. Briggs, J. Opt. Soc. Am. 26, 240 (1936).

Drude, P.

P. Drude, Ann. Physik 39, 530 (1890).

Duncan, R. C.

R. W. and R. C. Duncan, Phys. Rev. 1, 294 (1913).

Duncan, R. W.

R. W. and R. C. Duncan, Phys. Rev. 1, 294 (1913).

Einecke, Erich

Erich Einecke, Das Gallium (Edwards Brothers, Inc., Ann Arbor, 1944).

Emberson, R.

R. Emberson, J. Opt. Soc. Am. 26, 443 (1936).

Erochin, P.

P. Erochin, Ann. Physik 39, 213 (1912).

Feacham, C.

L. Tronstad and C. Feacham, Proc. Roy. Soc. (London) A145, 115 (1934).

Hagen, E.

E. Hagen and H. Rubens, Ann. Physik 1, 352 (1900).

E. Hagen and H. Rubens, Ann. Physik 11, 873 (1903).

Ives, H.

H. Ives and H. Briggs, J. Opt. Soc. Am. 26, 240 (1936).

Jones, H.

N. F. Mott and H. Jones, The Theory of the Properties of Metals and Alloys (Oxford University Press, New York, 1936), Chap. 3.

Kent, C. V.

C. V. Kent, Phys. Rev. 14, 459 (1919).

Lange, H.

H. Lange, Z. Physik 94, 650 (1935).

Meier, W.

W. Meier, Ann. Physik 31, 1017 (1910).

Mott, N. F.

N. F. Mott and H. Jones, The Theory of the Properties of Metals and Alloys (Oxford University Press, New York, 1936), Chap. 3.

Nathanson, J.

J. Nathanson, J. Opt. Soc. Am. 28, 300 (1938).

Measurements on liquid Ga by J. Nathanson, Phys. Rev. 49, 887 (1936) seem to be grossly incorrect.

O’Brien, Brian

Brian O'Brien, Phys. Rev. 27, 93 (1926).

Rubens, H.

E. Hagen and H. Rubens, Ann. Physik 1, 352 (1900).

E. Hagen and H. Rubens, Ann. Physik 11, 873 (1903).

Schulz, L. G.

L. G. Schulz and F. R. Tangherlini, J. Opt. Soc. Am. 44, 362 (1954).

L. G. Schulz, J. Opt. Soc. Am. 44, 540 (1954).

L. G. Schulz, J. Opt. Soc. Am. 44, 357 (1954).

Seitz, F.

F. Seitz, Modern Theory of Solids (McGraw-Hill Book Company, Inc., New York, 1941), Chap. 17.

Stratton, J. H.

J. H. Stratton, Electromnagnetic Theory (McGraw-Hill Book Company, Inc., New York, 1941), p. 520.

Tangherlini, F. R.

L. G. Schulz and F. R. Tangherlini, J. Opt. Soc. Am. 44, 362 (1954).

Tronstad, L.

L. Tronstad and C. Feacham, Proc. Roy. Soc. (London) A145, 115 (1934).

Other

P. Drude, Ann. Physik 39, 530 (1890).

W. Meier, Ann. Physik 31, 1017 (1910).

P. Erochin, Ann. Physik 39, 213 (1912).

R. W. and R. C. Duncan, Phys. Rev. 1, 294 (1913).

Brian O'Brien, Phys. Rev. 27, 93 (1926).

L. Tronstad and C. Feacham, Proc. Roy. Soc. (London) A145, 115 (1934).

H. Lange, Z. Physik 94, 650 (1935).

H. Ives and H. Briggs, J. Opt. Soc. Am. 26, 240 (1936).

R. Emberson, J. Opt. Soc. Am. 26, 443 (1936).

J. Nathanson, J. Opt. Soc. Am. 28, 300 (1938).

E. Hagen and H. Rubens, Ann. Physik 11, 873 (1903).

E. Hagen and H. Rubens, Ann. Physik 1, 352 (1900).

F. Seitz, Modern Theory of Solids (McGraw-Hill Book Company, Inc., New York, 1941), Chap. 17.

N. F. Mott and H. Jones, The Theory of the Properties of Metals and Alloys (Oxford University Press, New York, 1936), Chap. 3.

L. G. Schulz and F. R. Tangherlini, J. Opt. Soc. Am. 44, 362 (1954).

L. G. Schulz, J. Opt. Soc. Am. 44, 357 (1954).

Measurements on liquid Ga by J. Nathanson, Phys. Rev. 49, 887 (1936) seem to be grossly incorrect.

C. V. Kent, Phys. Rev. 14, 459 (1919).

International Critical Tables (McGraw-Hill Book Company, Inc., New York,_1926).

Erich Einecke, Das Gallium (Edwards Brothers, Inc., Ann Arbor, 1944).

P. Bridgman, Proc. Am. Acad. Arts Sci. 56, 104 (1920).

J. H. Stratton, Electromnagnetic Theory (McGraw-Hill Book Company, Inc., New York, 1941), p. 520.

L. G. Schulz, J. Opt. Soc. Am. 44, 540 (1954).

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