Abstract

The absorption spectra of fused-silica samples, selected for their “typical” optical properties, are presented. The ultraviolet absorption edge shifts some 30 mμ toward the ir, between 22° and 982°C sample temperatures. In the same range, the 1.4-μ absorption peak passes through a maximum in absorption and the 2.23-μ peak passes through an absorption minimum; both move toward the ir. The water band at 2.75 μ shifts first toward the uv, then toward the ir, with increasing temperature, while monotonically decreasing in absorption.

© 1966 Optical Society of America

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References

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  1. D. A. Gryvnak and D. E. Burch, J. Opt. Soc. Am. 55, 625 (1965).
    [Crossref]
  2. J. H. Schulman and W. D. Compton, Color Centers in Solids (Macmillan Co., New York, 1962), p. 64.
  3. A. H. Laufer, J. A. Pirog, and J. R. McNesby, J. Opt. Soc. Am. 55, 64 (1965).
  4. Optical Quartz Glass Grades Suprasil and Infrasil (Amersil Quartz Div., Engelhard Industries, Inc., 1962).
  5. D. W. Lee and W. D. Kingery, J. Am. Ceram. Soc. 43, 594 (1960).
    [Crossref]
  6. F. C. Douglas and R. M. Gagosz, Report No. D-910082-7, United Aircraft Corporation, March1965.
  7. 60 Jahre Quarzglas, 25 Jahre Hochvakuumtechnik (W. C. Heraeus, Gmbh, Hanover, Germany, 1961).
  8. R. F. Walker, S. Zerfoss, S. F. Holley, and L. H. Gross, J. Res. Natl. Bur. Stds. 61, 251 (1958).
    [Crossref]

1965 (2)

1960 (1)

D. W. Lee and W. D. Kingery, J. Am. Ceram. Soc. 43, 594 (1960).
[Crossref]

1958 (1)

R. F. Walker, S. Zerfoss, S. F. Holley, and L. H. Gross, J. Res. Natl. Bur. Stds. 61, 251 (1958).
[Crossref]

Burch, D. E.

Compton, W. D.

J. H. Schulman and W. D. Compton, Color Centers in Solids (Macmillan Co., New York, 1962), p. 64.

Douglas, F. C.

F. C. Douglas and R. M. Gagosz, Report No. D-910082-7, United Aircraft Corporation, March1965.

Gagosz, R. M.

F. C. Douglas and R. M. Gagosz, Report No. D-910082-7, United Aircraft Corporation, March1965.

Gross, L. H.

R. F. Walker, S. Zerfoss, S. F. Holley, and L. H. Gross, J. Res. Natl. Bur. Stds. 61, 251 (1958).
[Crossref]

Gryvnak, D. A.

Holley, S. F.

R. F. Walker, S. Zerfoss, S. F. Holley, and L. H. Gross, J. Res. Natl. Bur. Stds. 61, 251 (1958).
[Crossref]

Kingery, W. D.

D. W. Lee and W. D. Kingery, J. Am. Ceram. Soc. 43, 594 (1960).
[Crossref]

Laufer, A. H.

Lee, D. W.

D. W. Lee and W. D. Kingery, J. Am. Ceram. Soc. 43, 594 (1960).
[Crossref]

McNesby, J. R.

Pirog, J. A.

Schulman, J. H.

J. H. Schulman and W. D. Compton, Color Centers in Solids (Macmillan Co., New York, 1962), p. 64.

Walker, R. F.

R. F. Walker, S. Zerfoss, S. F. Holley, and L. H. Gross, J. Res. Natl. Bur. Stds. 61, 251 (1958).
[Crossref]

Zerfoss, S.

R. F. Walker, S. Zerfoss, S. F. Holley, and L. H. Gross, J. Res. Natl. Bur. Stds. 61, 251 (1958).
[Crossref]

J. Am. Ceram. Soc. (1)

D. W. Lee and W. D. Kingery, J. Am. Ceram. Soc. 43, 594 (1960).
[Crossref]

J. Opt. Soc. Am. (2)

J. Res. Natl. Bur. Stds. (1)

R. F. Walker, S. Zerfoss, S. F. Holley, and L. H. Gross, J. Res. Natl. Bur. Stds. 61, 251 (1958).
[Crossref]

Other (4)

F. C. Douglas and R. M. Gagosz, Report No. D-910082-7, United Aircraft Corporation, March1965.

60 Jahre Quarzglas, 25 Jahre Hochvakuumtechnik (W. C. Heraeus, Gmbh, Hanover, Germany, 1961).

Optical Quartz Glass Grades Suprasil and Infrasil (Amersil Quartz Div., Engelhard Industries, Inc., 1962).

J. H. Schulman and W. D. Compton, Color Centers in Solids (Macmillan Co., New York, 1962), p. 64.

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Figures (10)

Fig. 1
Fig. 1

Optical schematic of spectrophotometer: A, uv and ir sources; B, 480-cps chopper; C, rotating mirrors; D, servo-controlled slits; E, quartz prism; F, uv and ir detectors.

Fig. 2
Fig. 2

Exploded view of furnace: A, heating elements (0.032 wire); B, insulating walls cut from firebrick; C, water-cooled outer casing; D, metal liner; E, sample container box.

Fig. 3
Fig. 3

Assembled furnace.

Fig. 4
Fig. 4

Sample plots of transmittance for “identical” samples.

Fig. 5
Fig. 5

Corning and Suprasil sample sets, room temperature. (a) Corning uv grade, (b) Corning optical grade, (c) Suprasil I, (d) Suprasil II. ○ Manufacturer’s data. □ Mean.

Fig. 6
Fig. 6

Absorption spectrum, Corning uv grade. (a) uv cutoff, (b) At 1.4 μ, (c) Water band.

Fig. 7
Fig. 7

Absorption spectrum, Corning optical grade. (a) uv cutoff, (b) at 1.4 μ, (c) water band.

Fig. 8
Fig. 8

Absorption spectrum, Suprasil. (a) uv cutoff, (b) at 1.4 μ, (c) water band.

Fig. 9
Fig. 9

Position of uv cutoff as function of temperature: α = 10 cm−1; A, Corning optical grade; B, Suprasil; C, Corning uv grade. ○ Data. ♢ Extrapolated from data.

Fig. 10
Fig. 10

Motion of absorption peaks: A, Corning optical; B, Corning uv; C, Suprasil. (a) At 1.4 μ, (b) at 2.2 μ, (c) at 2.75 μ. Temperature, in °C: △—22°, □—260°, ○—538°, ▽—760°, ●—982°.

Equations (1)

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α = - ln ( I / I 0 ) / ( x 2 - x 1 ) .