Abstract

On the basis of Brewsterian angle measurements, a procedure is here outlined which yields refractive indices with uncertainties in the third decimal place. Since “bulk” refractive indices are desired, it is shown that the errors due to surface films may be eliminated by making measurements only on freshly ground and polished surfaces. Attention is directed to applicability of this procedure when the refractive indices of black materials are to be determined.

© 1941 Optical Society of America

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References

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  1. Handbuch der Physik, Vol. 20, p. 211.
  2. A. H. Pfund, J. Opt. Soc. Am. 26, 453 (1936).
    [CrossRef]
  3. J. Jamin, Ann. de chimie et de physique 29, 263 (1850).
  4. Rayleigh, Collected Papers.
  5. P. Drude, Lehrbuch der Optik (1900), p. 266.
  6. K. B. Blodgett, Phys. Rev. 55, 391 (1939).
    [CrossRef]
  7. A. Vasicek, Phys. Rev. 57, 925 (1940).
    [CrossRef]
  8. F. L. Jones and H. J. Homer, J. Opt. Soc. Am. 31, 34 (1941).
    [CrossRef]

1941 (1)

1940 (1)

A. Vasicek, Phys. Rev. 57, 925 (1940).
[CrossRef]

1939 (1)

K. B. Blodgett, Phys. Rev. 55, 391 (1939).
[CrossRef]

1936 (1)

1900 (1)

P. Drude, Lehrbuch der Optik (1900), p. 266.

1850 (1)

J. Jamin, Ann. de chimie et de physique 29, 263 (1850).

Blodgett, K. B.

K. B. Blodgett, Phys. Rev. 55, 391 (1939).
[CrossRef]

Drude, P.

P. Drude, Lehrbuch der Optik (1900), p. 266.

Homer, H. J.

Jamin, J.

J. Jamin, Ann. de chimie et de physique 29, 263 (1850).

Jones, F. L.

Pfund, A. H.

Rayleigh,

Rayleigh, Collected Papers.

Vasicek, A.

A. Vasicek, Phys. Rev. 57, 925 (1940).
[CrossRef]

Ann. de chimie et de physique (1)

J. Jamin, Ann. de chimie et de physique 29, 263 (1850).

J. Opt. Soc. Am. (2)

Lehrbuch der Optik (1)

P. Drude, Lehrbuch der Optik (1900), p. 266.

Phys. Rev. (2)

K. B. Blodgett, Phys. Rev. 55, 391 (1939).
[CrossRef]

A. Vasicek, Phys. Rev. 57, 925 (1940).
[CrossRef]

Other (2)

Handbuch der Physik, Vol. 20, p. 211.

Rayleigh, Collected Papers.

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Figures (3)

Fig. 1
Fig. 1

R represents the resultant and azimuth of the restored plane-polarized light reflected from glass at the angles of incidence i=0°, 50°, 57° and 70°. The phase-change of the R|| component for i=50° and i=70° is brought out.

Fig. 2
Fig. 2

The angle ϕ represents the large change in the azimuth of the restored plane-polarized light when the incident plane-polarized light makes only a small angle with the R|| direction.

Fig. 3
Fig. 3

Diagrammatic sketch of the apparatus used in determining refractive indices by means of the Brewsterian angle.

Equations (1)

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R = - sin ( i - r ) sin ( i + r ) ,             R = - tan ( i - r ) tan ( i + r ) .