Abstract

A self-supporting Fresnel zone plate with empty transparent zones has been used to focus vacuum-ultraviolet (vuv) radiation with wavelengths as short as 565Å. The radiation was produced by two broad-band sources, (i) the molecular continuum of a helium gas-discharge lamp, which extends from 600 to 1100 Å with a broad peak at 810 Å, and (ii) the synchrotron continuum of an electron storage ring filtered by a Sn filter, which extends from 520 to 750 Å with a broad peak at 565 Å. The zone plate was used as a simple converging lens to form an optical image of an object mesh on a sodium salicylate film, where it was photographically recorded. Magnifications of 20× and linear resolutions within an order of magnitude of the theoretical resolution limit of the zone plate were obtained. Applications of this device as a vuv microscope are discussed.

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  1. A. V. Baez, J. Opt. Soc. Am. 51, 405 (1961), and references therein.
  2. H. H. M. Chau, Appl. Opt. 8, 1209 (1969).
  3. The resolution of the Fresnel zone plate is affected by the number of zones in the plate as well as by the bandwidth of the source of illumination. For a discussion of zone-plate aberrations, see Ref. 4 and the references therein.
  4. M. Young, J. Opt. Soc. Am. 62, 972 (1972).
  5. Produced by Buckbee Mears Co., 245 E. 6th St., St. Paul, Minn. 55101.
  6. R. E. Huffman, Y. Tanaka, and J. C. Larrabee, Appl. Opt. 2, 617 (1963).
  7. J. M. Stone, Radiation and Optics (McGraw-Hill, New York, 1963), p. 130.
  8. Physical Sciences Laboratory, The University of Wisconsin, P. O. Box 6, Stoughton, Wisconsin 53589.
  9. J. A. R. Samson, Vacuum Ultraviolet Spectroscopy (Wiley, New York, 1967), pp. 113–119.
  10. Reference 9, pp. 188–200.
  11. P. M. Keating, R. K. Mueller, and T. Sawatari, J. Opt. Soc. Am. 62, 945 (1972).

Baez, A. V.

A. V. Baez, J. Opt. Soc. Am. 51, 405 (1961), and references therein.

Chau, H. H. M.

H. H. M. Chau, Appl. Opt. 8, 1209 (1969).

Huffman, R. E.

R. E. Huffman, Y. Tanaka, and J. C. Larrabee, Appl. Opt. 2, 617 (1963).

Keating, P. M.

P. M. Keating, R. K. Mueller, and T. Sawatari, J. Opt. Soc. Am. 62, 945 (1972).

Larrabee, J. C.

R. E. Huffman, Y. Tanaka, and J. C. Larrabee, Appl. Opt. 2, 617 (1963).

Mueller, R. K.

P. M. Keating, R. K. Mueller, and T. Sawatari, J. Opt. Soc. Am. 62, 945 (1972).

Samson, J. A. R.

J. A. R. Samson, Vacuum Ultraviolet Spectroscopy (Wiley, New York, 1967), pp. 113–119.

Sawatari, T.

P. M. Keating, R. K. Mueller, and T. Sawatari, J. Opt. Soc. Am. 62, 945 (1972).

Stone, J. M.

J. M. Stone, Radiation and Optics (McGraw-Hill, New York, 1963), p. 130.

Tanaka, Y.

R. E. Huffman, Y. Tanaka, and J. C. Larrabee, Appl. Opt. 2, 617 (1963).

Young, M.

M. Young, J. Opt. Soc. Am. 62, 972 (1972).

Other (11)

A. V. Baez, J. Opt. Soc. Am. 51, 405 (1961), and references therein.

H. H. M. Chau, Appl. Opt. 8, 1209 (1969).

The resolution of the Fresnel zone plate is affected by the number of zones in the plate as well as by the bandwidth of the source of illumination. For a discussion of zone-plate aberrations, see Ref. 4 and the references therein.

M. Young, J. Opt. Soc. Am. 62, 972 (1972).

Produced by Buckbee Mears Co., 245 E. 6th St., St. Paul, Minn. 55101.

R. E. Huffman, Y. Tanaka, and J. C. Larrabee, Appl. Opt. 2, 617 (1963).

J. M. Stone, Radiation and Optics (McGraw-Hill, New York, 1963), p. 130.

Physical Sciences Laboratory, The University of Wisconsin, P. O. Box 6, Stoughton, Wisconsin 53589.

J. A. R. Samson, Vacuum Ultraviolet Spectroscopy (Wiley, New York, 1967), pp. 113–119.

Reference 9, pp. 188–200.

P. M. Keating, R. K. Mueller, and T. Sawatari, J. Opt. Soc. Am. 62, 945 (1972).

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