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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 1 — Jan. 1, 1998
  • pp: 103–105

Dielectric Thin Films for Maximized Absorption With Standard Quality Black Surfaces

H. Giovannini and C. Amra  »View Author Affiliations


Applied Optics, Vol. 37, Issue 1, pp. 103-105 (1998)
http://dx.doi.org/10.1364/AO.37.000103


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Abstract

Optical coatings deposited on rough black surfaces permit one to reduce scattering and increase absorption with broadband properties. To optimize the optogeometrical parameters (thickness, refractive index) of the coating, to obtain the best performances, it is necessary to know the refractive index of the bare surface. For this purpose we use both theoretical and experimental approaches. It is shown that with our method the total amount of scattered light from a common standard black surface can be reduced by a factor of 10. An absorption of greater than 99.5% is obtained.

© 1998 Optical Society of America

OCIS Codes
(290.0290) Scattering : Scattering
(300.1030) Spectroscopy : Absorption
(310.1620) Thin films : Interference coatings
(310.6860) Thin films : Thin films, optical properties

Citation
H. Giovannini and C. Amra, "Dielectric Thin Films for Maximized Absorption With Standard Quality Black Surfaces," Appl. Opt. 37, 103-105 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-1-103


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