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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 7 — Apr. 1, 1989
  • pp: 1422–1428

Particulate Au and Ag films for optical recording

Arend Werner and Hartmut Hibst  »View Author Affiliations


Applied Optics, Vol. 28, Issue 7, pp. 1422-1428 (1989)
http://dx.doi.org/10.1364/AO.28.001422


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Abstract

Particulate films, consisting of a 3-D arrangement of ultrafine Au or Ag particles with diameters of 8–20 nm, were prepared using the gas evaporation technique. As a consequence of the low packing density of the particles, films with a thickness of ~4 μm show very low reflectivities of <3% in the wavelength range of 300–1000 nm, causing high absorption of incident light. Additionally the sintering temperature of the ultrafine particles is very low (~350°C for Au). So a drastic altering of the optical properties of the particulate films is observed when irradiated by a laser. A sensitive optical recording medium with an adjustable reflectivity can be realized using a two-layer configuration with a reflector layer covered by a thin ~0.5-μm particulate Au film. Particulate Au or Ag films can also be used for photographic applications.

© 1989 Optical Society of America

History
Original Manuscript: January 15, 1988
Published: April 1, 1989

Citation
Arend Werner and Hartmut Hibst, "Particulate Au and Ag films for optical recording," Appl. Opt. 28, 1422-1428 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-7-1422

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