Results 171 to 180 of about 17,458 (221)
Some of the next articles are maybe not open access.
Antireflective film of porous silica
Journal of the Optical Society of America A, 2022We aimed to strengthen the antireflection coating of low refractive index, by using spinodal porous films based on phase separation of sodium borosilicate glass. Coating films were prepared by printing a glass paste onto a silica substrate, and melting at temperatures from 900°C to 1000°C, allowing phase separation at 600°C and finally etching to ...
openaire +2 more sources
Porous fluoride antireflective coatings
Applied Optics, 1988Quarterwave antireflective coatings of CaF(2) and MgF(2) have been prepared on fused silica and calcium fluoride substrates from colloidal suspensions of the relevant fluorides in methanol. These coatings have high optical efficiency and laser damage thresholds at 350 nm in the 6-8-J/cm(2) range for single shots of 0.6-ns pulse length and 20-25 J/cm(2)
openaire +2 more sources
Gradient-index antireflection coatings
Optics Letters, 1983Thin-film gradient-index profiles have been analyzed and new profiles have been synthesized for broadband antireflection coatings on dielectric surfaces. It is shown that the control of the index gradient as a design parameter can significantly enhance the performance of interference coatings.
openaire +2 more sources
Toward perfect antireflection coatings 2 Theory
Applied Optics, 2004Recently we performed a numerical investigation of antireflection coatings that reduce significantly the reflection over a wide range of wavelengths and angles of incidence, and we proposed some experiments to demonstrate their feasibility. We provide a theoretical description of omnidirectional antireflection coatings that are effective over a wide ...
Poitras, Daniel, Dobrowolski, J. A.
openaire +2 more sources
Toward perfect antireflection coatings: numerical investigation
Applied Optics, 2002A perfect antireflection (AR) coating would remove completely the reflection from an interface between two media for all wavelengths, polarizations, and angles of incidence. The degree to which this can be achieved is investigated numerically. It is shown that wideband solutions can be found provided that layers can be deposited with refractive indices
Dobrowolski, J. A. +4 more
openaire +2 more sources
IV Multilayer Antireflection Coatings
1970Publisher Summary This chapter focuses on antireflection coatings that are very extensive and scattered. The chapter considers absorption-free materials, no dispersion, and normal light incidence. Another major restriction is imposed by the fact that only a few materials lend themselves to deposition as thin films. There are no methods yet of finding
A. Musset, A. Thelen
openaire +1 more source