Open AccessElectric-field enhancement caused by subwavelength-sized particles located on the surface of multilayer dielectric mirrors
Author(s) -
Huaqing Huang,
Kyle Kafka,
Stavros G. Demos
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.428740
Subject(s) - electric field , optics , dielectric , laser , materials science , field (mathematics) , optoelectronics , physics , mathematics , quantum mechanics , pure mathematics
A laser pulse impinging on the surface of an optical component can interact with particles, such as contamination debris, to produce a scattered electric field, which, either by itself or combined with the incident laser field, coherently can significantly increase the local field intensity. This effect can be of critical importance as it can reduce the laser-induced-damage threshold of the affected component. In this work, we use a field-propagation code to improve understanding regarding the factors that determine the magnitude and location of the electric-field enhancement for the case of subwavelength-sized particles located on the surface of multilayer dielectric mirrors.