Optimal design of minimally reflective coatings

Henry Konstanty, Fadil Santosa

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The problem of determining coatings on a flat surface that produces the least amount of wave reflection when it is struck by a known incident pulse is investigated. A departure from previous work on this subject is that the problem is formulated in the time domain, leading to a more intuitive understanding of the wave cancellation phenomenon. The model problem considered in this work is that of a scalar, plane wave propagation. The resulting optimization problem is analyzed in the regime where impedance contrasts between the coatings are small. We show that the problem may be illposed, depending on the nature of the incident pulse. We propose a regularization strategy and an efficient computational scheme for solving the optimization problem. The design problem is further studied in several numerical experiments.

Original languageEnglish (US)
Pages (from-to)291-309
Number of pages19
JournalWave Motion
Volume21
Issue number3
DOIs
StatePublished - May 1995

Bibliographical note

Funding Information:
This research is partially supported by NSF under grant DMS-9210489 and AFOSR under URI-RIP grant F49620-93-l-0500. Fadil Santosag ratefully acknowledgesi nterestingc onversationso n the subject with Giovanni Alessandrini of the University of Trieste, Italy.

Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.

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