Next Article in Journal
A Study of Order Modification for Reactive Power Support by Wind Farm during Communication Failure
Next Article in Special Issue
Modeling kV X-ray-Induced Coloration in Radiochromic Films
Previous Article in Journal
Thermal Stability and Tuning of Thermoelectric Properties of Ag1−xSb1+xTe2+x (0 ≤ x ≤ 0.4) Alloys
Previous Article in Special Issue
Modeling Coloration of a Radiochromic Film with Molecular Dynamics-Coupled Finite Element Method
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Appl. Sci. 2018, 8(1), 65; https://doi.org/10.3390/app8010065

Standing Wave Field Distribution in Graded-Index Antireflection Coatings

1
Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China
2
School of Physical Electronic, University of Electronic Science and Technology of China, Chengdu 610054, China
*
Authors to whom correspondence should be addressed.
Received: 8 December 2017 / Revised: 27 December 2017 / Accepted: 28 December 2017 / Published: 4 January 2018
(This article belongs to the Special Issue Radiation Effects of Materials with Laser, Ion Beam and Rays)
View Full-Text   |   Download PDF [4438 KB, uploaded 4 January 2018]   |  

Abstract

Standing wave field distributions in three classic types of graded-index antireflection coatings are studied. These graded-index antireflection coatings are designed at wavelengths from 200 nm to 1200 nm, which is the working wavelength range of high energy laser system for inertial-fusion research. The standing wave field distributions in these coatings are obtained by the numerical calculation of electromagnetic wave equation. We find that standing wave field distributions in these three graded-index anti-reflection coatings are quite different. For the coating with linear index distribution, intensity of standing wave field decreases periodically from surface to substrate with narrow oscillation range and the period is proportional to the incident wavelength. For the coating with exponential index distribution, intensity of standing wave field decreases periodically from surface to substrate with large oscillation range and the period is also proportional to the incident wavelength. Finally, for the coating with polynomial index, intensity of standing wave field is quickly falling down from surface to substrate without an obvious oscillation. We find that the intensity of standing wave field in the interface between coating and substrate for linear index, exponential index and polynomial index are about 0.7, 0.9 and 0.7, respectively. Our results indicate that the distributions of standing wave field in linear index coating and polynomial index coating are better than that in exponential index coating for the application in high energy laser system. Moreover, we find that the transmittance of linear index coating and polynomial index coating are also better than exponential index coating at the designed wavelength range. Present simulation results are useful for the design and application of graded-index antireflection coating in high energy laser system. View Full-Text
Keywords: graded-index antireflection coating; standing wave field distribution; laser induced damage of optical coating; high energy laser system graded-index antireflection coating; standing wave field distribution; laser induced damage of optical coating; high energy laser system
Figures

Figure 1a

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Deng, H.; Dong, X.; Gao, H.; Yuan, X.; Zheng, W.; Zu, X. Standing Wave Field Distribution in Graded-Index Antireflection Coatings. Appl. Sci. 2018, 8, 65.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top