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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 22 — Aug. 1, 2001
  • pp: 3746–3752

Stepwise graded refractive-index profiles for design of a narrow-bandpass filter

Xinrong Wang, Hiroshi Masumoto, Yoshihiro Someno, Lidong Chen, and Toshio Hirai  »View Author Affiliations


Applied Optics, Vol. 40, Issue 22, pp. 3746-3752 (2001)
http://dx.doi.org/10.1364/AO.40.003746


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Abstract

A combination of stepwise graded refractive-index profiles and a cavity structure is used for designing narrow-bandpass filters of TiO2/SiO2 multilayer films upon BK7 glass substrates. Symmetrical profiles of stepwise graded refractive indices result in high transmittance of passbands for the designed filters. The bandwidth of the narrow-bandpass filter is controlled by adjustment of parameters such as the thickness and the number of layers in the multilayer stack. This design is proposed as a new and simple method for coating synthesis of optical filters.

© 2001 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(240.0310) Optics at surfaces : Thin films
(310.6860) Thin films : Thin films, optical properties
(350.2460) Other areas of optics : Filters, interference

History
Original Manuscript: April 24, 2000
Revised Manuscript: November 6, 2000
Published: August 1, 2001

Citation
Xinrong Wang, Hiroshi Masumoto, Yoshihiro Someno, Lidong Chen, and Toshio Hirai, "Stepwise graded refractive-index profiles for design of a narrow-bandpass filter," Appl. Opt. 40, 3746-3752 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-22-3746

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