Abstract

Thin metallic foils of antimony and titanium have been investigated in an attempt to develop an EUV filter with a bandpass from 350 to 550 Å. A composite filter has been developed composed of antimony sandwiched between two titanium foils. The transmissions of sample composite foils and of pure titanium foils from 130 to 1216 Å are presented. The absorption coefficients of antimony and titanium and the effect of titanium oxide on the transmission are derived. The composite filter has been found to be quite stable and mechanically rugged. Among other uses, the filter shows substantial promise for EUV astronomy.

© 1983 Optical Society of America

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References

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  1. F. Paresce, Earth Extraterr. Sci. 3, 55 (1977).
  2. R. F. Malina, S. Bowyer, G. Basri, Astrophys. J. 262, 717 (1982).
    [CrossRef]
  3. J. B. Holberg, B. R. Sandel, W. T. Forrester, A. L. Broadfoot, H. L. Shipman, D. C. Barny, Astrophys. Lett. 242, L119 (1980).
    [CrossRef]
  4. J. A. R. Samson, in Techniques of Vacuum Ultraviolet Spectroscopy (Wiley, New York, 1967).
  5. O. Rustgi, J. Opt. Soc. Am. 55, 630 (1965).
    [CrossRef]
  6. W. R. Hunter, “The Preparation and Use of Unbacked Metal Films as Filters in the Extreme Ultraviolet,” in Physics of Thin Films (Academic, New York, 1973), Vol. 7.
  7. F. Paresce, S. Kumar, C. S. Bowyer, Appl. Opt. 10, 1904 (1971).
    [CrossRef] [PubMed]
  8. D. S. Finley, S. Bowyer, F. Paresce, R. F. Malina, Appl. Opt. 18, 649 (1979).
    [CrossRef] [PubMed]
  9. M. Hansen, in Constitution of Binary Alloys (McGraw-Hill, New York, 1958).
  10. B. Sonntag, R. Haensel, C. Kunz, Solid State Commun. 7, 597 (1969).
    [CrossRef]
  11. J. Toots, L. Marton, J. Opt. Soc. Am. 59, 1305 (1969).
    [CrossRef]

1982 (1)

R. F. Malina, S. Bowyer, G. Basri, Astrophys. J. 262, 717 (1982).
[CrossRef]

1980 (1)

J. B. Holberg, B. R. Sandel, W. T. Forrester, A. L. Broadfoot, H. L. Shipman, D. C. Barny, Astrophys. Lett. 242, L119 (1980).
[CrossRef]

1979 (1)

1977 (1)

F. Paresce, Earth Extraterr. Sci. 3, 55 (1977).

1971 (1)

1969 (2)

J. Toots, L. Marton, J. Opt. Soc. Am. 59, 1305 (1969).
[CrossRef]

B. Sonntag, R. Haensel, C. Kunz, Solid State Commun. 7, 597 (1969).
[CrossRef]

1965 (1)

Barny, D. C.

J. B. Holberg, B. R. Sandel, W. T. Forrester, A. L. Broadfoot, H. L. Shipman, D. C. Barny, Astrophys. Lett. 242, L119 (1980).
[CrossRef]

Basri, G.

R. F. Malina, S. Bowyer, G. Basri, Astrophys. J. 262, 717 (1982).
[CrossRef]

Bowyer, C. S.

Bowyer, S.

Broadfoot, A. L.

J. B. Holberg, B. R. Sandel, W. T. Forrester, A. L. Broadfoot, H. L. Shipman, D. C. Barny, Astrophys. Lett. 242, L119 (1980).
[CrossRef]

Finley, D. S.

Forrester, W. T.

J. B. Holberg, B. R. Sandel, W. T. Forrester, A. L. Broadfoot, H. L. Shipman, D. C. Barny, Astrophys. Lett. 242, L119 (1980).
[CrossRef]

Haensel, R.

B. Sonntag, R. Haensel, C. Kunz, Solid State Commun. 7, 597 (1969).
[CrossRef]

Hansen, M.

M. Hansen, in Constitution of Binary Alloys (McGraw-Hill, New York, 1958).

Holberg, J. B.

J. B. Holberg, B. R. Sandel, W. T. Forrester, A. L. Broadfoot, H. L. Shipman, D. C. Barny, Astrophys. Lett. 242, L119 (1980).
[CrossRef]

Hunter, W. R.

W. R. Hunter, “The Preparation and Use of Unbacked Metal Films as Filters in the Extreme Ultraviolet,” in Physics of Thin Films (Academic, New York, 1973), Vol. 7.

Kumar, S.

Kunz, C.

B. Sonntag, R. Haensel, C. Kunz, Solid State Commun. 7, 597 (1969).
[CrossRef]

Malina, R. F.

Marton, L.

Paresce, F.

Rustgi, O.

Samson, J. A. R.

J. A. R. Samson, in Techniques of Vacuum Ultraviolet Spectroscopy (Wiley, New York, 1967).

Sandel, B. R.

J. B. Holberg, B. R. Sandel, W. T. Forrester, A. L. Broadfoot, H. L. Shipman, D. C. Barny, Astrophys. Lett. 242, L119 (1980).
[CrossRef]

Shipman, H. L.

J. B. Holberg, B. R. Sandel, W. T. Forrester, A. L. Broadfoot, H. L. Shipman, D. C. Barny, Astrophys. Lett. 242, L119 (1980).
[CrossRef]

Sonntag, B.

B. Sonntag, R. Haensel, C. Kunz, Solid State Commun. 7, 597 (1969).
[CrossRef]

Toots, J.

Appl. Opt. (2)

Astrophys. J. (1)

R. F. Malina, S. Bowyer, G. Basri, Astrophys. J. 262, 717 (1982).
[CrossRef]

Astrophys. Lett. (1)

J. B. Holberg, B. R. Sandel, W. T. Forrester, A. L. Broadfoot, H. L. Shipman, D. C. Barny, Astrophys. Lett. 242, L119 (1980).
[CrossRef]

Earth Extraterr. Sci. (1)

F. Paresce, Earth Extraterr. Sci. 3, 55 (1977).

J. Opt. Soc. Am. (2)

Solid State Commun. (1)

B. Sonntag, R. Haensel, C. Kunz, Solid State Commun. 7, 597 (1969).
[CrossRef]

Other (3)

J. A. R. Samson, in Techniques of Vacuum Ultraviolet Spectroscopy (Wiley, New York, 1967).

W. R. Hunter, “The Preparation and Use of Unbacked Metal Films as Filters in the Extreme Ultraviolet,” in Physics of Thin Films (Academic, New York, 1973), Vol. 7.

M. Hansen, in Constitution of Binary Alloys (McGraw-Hill, New York, 1958).

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Figures (6)

Fig. 1
Fig. 1

Transmission of titanium. Closed circles are for 500 ± 20-Å thick titanium and open circles are for 1080 ± 20 Å. One sigma statistical error bars are shown. The points with no error bars have error bars smaller than the points. Lines drawn through the points are eye fits to the data.

Fig. 2
Fig. 2

Transmission of an antimony-titanium sandwich (100 ± 20-Å Ti/1120 ± 20-Å Sb/100 ± 20-Å Ti). One sigma statistical error bars are shown. The points with no error bars have error bars smaller than the points. The line drawn through the points is an eye fit to the data.

Fig. 3
Fig. 3

Absorption coefficient of antimony in an antimony-titanium composite filter (see text). One sigma statistical error bars are shown. The line drawn through the points is an eye fit to the data.

Fig. 4
Fig. 4

Absorption coefficient of titanium. One sigma statistical error bars are shown. The line drawn through the points is an eye fit to the data.

Fig. 5
Fig. 5

(1 − RTi) exp[(μTiμTiO)XTiO] plotted vs wavelength. One sigma statistical error bars are shown. The line drawn through the points is an eye fit to the data.

Fig. 6
Fig. 6

Transmission of visible light through a 200-Å Ti/1500-Å Sb/200-Å Ti filter vs time. Closed circles are measurements of filters left in a 60% relative humidity environment. Open circles are measurements of filters left in a −1% relative humidity (dessicated) environment. The dashed curve is typical of a 1500-Å aluminum filter exposed to a 60% relative humidity environment.

Tables (1)

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Table I Vibration Specifications

Equations (1)

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T ( 500 ) = ( 1 R Ti ) exp [ ( μ Ti μ TiO ) X TiO ] exp [ μ Ti ( 0.05 ) ] , T ( 1080 ) = ( 1 R Ti ) exp [ ( μ Ti μ TiO ) X TiO ] exp [ μ Ti ( 0.108 ) ] , T ( Sb ) = ( 1 R Ti ) exp [ ( μ Ti μ TiO ) X TiO ] exp [ μ Ti ( 0.020 ) ] × exp [ μ Sb ( 0.112 ) ] .

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