Abstract

The moth’s eye principle of optical-impedance matching by means of an array of tapered protuberances has been studied to determine the limit obtainable for reflection reduction. Analogous multilayer equivalents were optimized over a wide band, using a recently developed optimization method, in which one or more of the layers are specified inclusions. A limit of 30 dB reduction of reflectance was obtained over a bandwidth 1.4 times the short-wavelength limit of the band. These results are also related to corrugated conducting surfaces used in a new solar-absorber design that uses corrugations in a conductor and is required to be optimized for best absorption (a) and emissivity (e) values. The optimum corrugation geometry for two types of periodic surface is studied and results are discussed in view of further development in practical applications.

© 1975 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Numerical study of the meta-nanopyramid array as efficient solar energy absorber

Qiuqun Liang, Weixing Yu, Wencai Zhao, Taisheng Wang, Jingli Zhao, Hongsheng Zhang, and Shaohua Tao
Opt. Mater. Express 3(8) 1187-1196 (2013)

Enhanced power generation in concentrated photovoltaics using broadband antireflective coverglasses with moth eye structures

Young Min Song, Yonkil Jeong, Chan Il Yeo, and Yong Tak Lee
Opt. Express 20(S6) A916-A923 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (2)

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

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

Tables (2)

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

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

Equations (7)

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

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