Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Antireflective film of porous silica

Not Accessible

Your library or personal account may give you access

Abstract

We 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 porosities of ${\sim}{{60}}\% $. Coating with reflections as low as 0.5% was achieved, which consisted of a homogeneous porous layer of several micrometers in thickness and a graded region of up to 400 nm in width at the interface with the substrate. As to the optical property, simulations based on three-layer and two-layer models were carried out, into which was incorporated a term expressing mutual coherence degree between reflections from the surface and interface with coherence length of the light source.

© 2022 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Dust proof properties of spinodal porous surfaces

Zuyi Zhang
J. Opt. Soc. Am. A 39(5) 866-872 (2022)

Wide spectrum antireflective coating for fused silica and other glasses

Bulent E. Yoldas and Deborah P. Partlow
Appl. Opt. 23(9) 1418-1424 (1984)

High laser damage threshold porous silica antireflective coating

Ian M. Thomas
Appl. Opt. 25(9) 1481-1483 (1986)

Supplementary Material (1)

NameDescription
Supplement 1       Supporting content.

Data availability

No data were generated and analyzed in the presented research.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved