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High-performance antireflective coatings with a porous nanoparticle layer for visible wavelengths |
Applied Optics, Vol. 50, Issue 9, pp. C403-C407 (2011)
http://dx.doi.org/10.1364/AO.50.00C403
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Abstract
Ghosts and flares are well-known problems that are caused by reflections from lens surfaces when we take photographs. It is more difficult to prevent such stray light in a digital camera than in a film camera because of high reflectance from the low-pass filter and diffraction from the image sensor. To prevent such stray light, we introduce an ultralow refractive index layer into the antireflective (AR) coatings. We used the solgel method to form porous fluoride layers with ultralow refractive indices, and we succeeded in developing a unique process to form AR coatings with superior performance.
© 2011 Optical Society of America
OCIS Codes
(310.1210) Thin films : Antireflection coatings
(310.6628) Thin films : Subwavelength structures, nanostructures
History
Original Manuscript: August 2, 2010
Revised Manuscript: December 29, 2010
Manuscript Accepted: January 12, 2011
Published: March 2, 2011
Citation
Tsuyoshi Murata, Hitoshi Ishizawa, and Akira Tanaka, "High-performance antireflective coatings with a porous nanoparticle layer for visible wavelengths," Appl. Opt. 50, C403-C407 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-9-C403
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