Abstract

The index of refraction of optical quality fused silica (SiO<sub>2</sub>) was determined for 60 wavelengths from 0.21 to 3.71 µ at 20°C. The dispersion equation [equation] where λ is expressed in microns was found to yield an absolute residual of 10.5×10<sup>-6</sup>. The variation in index between 12 specimens was determined. Dispersive properties of the material and thermal coefficient of index are graphically presented. A comparison with previous NBS index data is discussed.

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  1. R. B. Sosman, The Properties of Silica (Chemical Catalog Company, Inc., New York, 1927).
  2. W. C. Heraeus, 60 Jahre Quarzglas 25 Jahre Hochvakuumtechnik (GmbH, Hanau, Federal Republic of Germany, 1961). A review of this book has been published in J. Opt. Soc. Am. 54, 1067 (1964).
  3. W. S. Rodney and R. J. Spindler, J. Res. Natl. Bur. Std. 53, 185 (1954).
  4. The author wishes to thank the aforementioned companies for providing specimens of these domestic brands of fused silica for measurement, and for granting the National Bureau of Standards permission to reveal the brand identifications of the data published in this paper. In no case does such identification imply recommendation or endorsement by the National Bureau of Standards, nor does it imply that any one brand is necessarily the best available.
  5. F. W. Rosberry (private communication).
  6. J. W. Schleter (private communication).
  7. L. E. Sutton and O. N. Stavroudis, J. Opt. Soc. Am. 51, 901 (1961).
  8. L. W. Tilton and A. Q. Tool, J. Res. Natl. Bur. Std. 3, 619 (1929) RP112.

Heraeus, W. C.

W. C. Heraeus, 60 Jahre Quarzglas 25 Jahre Hochvakuumtechnik (GmbH, Hanau, Federal Republic of Germany, 1961). A review of this book has been published in J. Opt. Soc. Am. 54, 1067 (1964).

Rodney, W. S.

W. S. Rodney and R. J. Spindler, J. Res. Natl. Bur. Std. 53, 185 (1954).

Rosberry, F. W.

F. W. Rosberry (private communication).

Schleter, J. W.

J. W. Schleter (private communication).

Sosman, R. B.

R. B. Sosman, The Properties of Silica (Chemical Catalog Company, Inc., New York, 1927).

Spindler, R. J.

W. S. Rodney and R. J. Spindler, J. Res. Natl. Bur. Std. 53, 185 (1954).

Stavroudis, O. N.

L. E. Sutton and O. N. Stavroudis, J. Opt. Soc. Am. 51, 901 (1961).

Sutton, L. E.

L. E. Sutton and O. N. Stavroudis, J. Opt. Soc. Am. 51, 901 (1961).

Tilton, L. W.

L. W. Tilton and A. Q. Tool, J. Res. Natl. Bur. Std. 3, 619 (1929) RP112.

Tool, A. Q.

L. W. Tilton and A. Q. Tool, J. Res. Natl. Bur. Std. 3, 619 (1929) RP112.

Other (8)

R. B. Sosman, The Properties of Silica (Chemical Catalog Company, Inc., New York, 1927).

W. C. Heraeus, 60 Jahre Quarzglas 25 Jahre Hochvakuumtechnik (GmbH, Hanau, Federal Republic of Germany, 1961). A review of this book has been published in J. Opt. Soc. Am. 54, 1067 (1964).

W. S. Rodney and R. J. Spindler, J. Res. Natl. Bur. Std. 53, 185 (1954).

The author wishes to thank the aforementioned companies for providing specimens of these domestic brands of fused silica for measurement, and for granting the National Bureau of Standards permission to reveal the brand identifications of the data published in this paper. In no case does such identification imply recommendation or endorsement by the National Bureau of Standards, nor does it imply that any one brand is necessarily the best available.

F. W. Rosberry (private communication).

J. W. Schleter (private communication).

L. E. Sutton and O. N. Stavroudis, J. Opt. Soc. Am. 51, 901 (1961).

L. W. Tilton and A. Q. Tool, J. Res. Natl. Bur. Std. 3, 619 (1929) RP112.

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