ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS

Design of wideband graded-index antireflection coatings at oblique light incidence

, , and

2012 Chinese Physical Society and IOP Publishing Ltd
, , Citation Zhang Jun-Chao et al 2012 Chinese Phys. B 21 014202 DOI 10.1088/1674-1056/21/1/014202

Download Article PDF

Article metrics

249 Total downloads

Share this article

Author affiliations

1 Key Laboratory of Material Science and Technology for High Power Lasers, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Dates

  1. Received 1 April 2011
Journal RSS
Sign up for new issue notifications
1674-1056/21/1/014202

Abstract

We suggest a design method of graded-refractive-index (GRIN) antireflection (AR) coating for s-polarized or p-polarized light at off-normal incidence. The spectrum characteristic of the designed antireflection coating with a quintic effective refractive-index profile for a given state of polarization has been discussed. In addition, the genetic algorithm was used to optimize the refractive index profile of the GRIN antireflection for reducing the mean reflectance of s- and p-polarizations. The average reflectance loss was reduced to only 0.04% by applying optimized GRIN AR coatings onto BK7 glass over the wavelength range from 400 to 800 nm at the incident angle of θ0 = 70°.

Export citation and abstract BibTeX RIS

Previous article in issue
Next article in issue
10.1088/1674-1056/21/1/014202