Suspended Dielectric Mirrors at Deep Subwavelength Scale

Reduction in the thickness of air-suspended mirrors to the deep subwavelength scale can facilitate efficient optical and mechanical design. The thinner the mirror, the smaller is its mass, and the more excellent mechanical properties it presents. Thin mirrors are easily displaced by optical radiatio...

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Main Authors: Ze Lin Tan, Ken Liu, Wei Xu, Zhi Hong Zhu
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8398417/
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author Ze Lin Tan
Ken Liu
Wei Xu
Zhi Hong Zhu
author_facet Ze Lin Tan
Ken Liu
Wei Xu
Zhi Hong Zhu
author_sort Ze Lin Tan
collection DOAJ
description Reduction in the thickness of air-suspended mirrors to the deep subwavelength scale can facilitate efficient optical and mechanical design. The thinner the mirror, the smaller is its mass, and the more excellent mechanical properties it presents. Thin mirrors are easily displaced by optical radiation pressure, and could present more intense light–mirror interactions than their thicker counterparts. Herein, we present this kind of ultraflat air-suspended mirrors that can reflect light at the telecom region, with a mirror thickness of approximately 25 nm and total thickness of 50 nm. This kind of mirrors shows many unique properties, e.g., the mirrors become increasingly transparent with diminishing film thickness at nonresonant wavelength; there is a strong evanescent field distribution outside the mirrors; the reflection wavelength is almost independent of the refractive index of the mirror materials, and nearly only depends on the lattice geometry at the deep subwavelength scale; moreover, their quality factor significantly improves, which is important for applications in laser, cavity optomechanics, and cavity quantum electrodynamics.
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record_format Article
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spelling doaj-art-2d28450ac2184823bf9c13fdd656c7722025-08-20T02:38:09ZengIEEEIEEE Photonics Journal1943-06552018-01-011041610.1109/JPHOT.2018.28508838398417Suspended Dielectric Mirrors at Deep Subwavelength ScaleZe Lin Tan0Ken Liu1https://orcid.org/0000-0003-1941-1160Wei Xu2Zhi Hong Zhu3College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaReduction in the thickness of air-suspended mirrors to the deep subwavelength scale can facilitate efficient optical and mechanical design. The thinner the mirror, the smaller is its mass, and the more excellent mechanical properties it presents. Thin mirrors are easily displaced by optical radiation pressure, and could present more intense light–mirror interactions than their thicker counterparts. Herein, we present this kind of ultraflat air-suspended mirrors that can reflect light at the telecom region, with a mirror thickness of approximately 25 nm and total thickness of 50 nm. This kind of mirrors shows many unique properties, e.g., the mirrors become increasingly transparent with diminishing film thickness at nonresonant wavelength; there is a strong evanescent field distribution outside the mirrors; the reflection wavelength is almost independent of the refractive index of the mirror materials, and nearly only depends on the lattice geometry at the deep subwavelength scale; moreover, their quality factor significantly improves, which is important for applications in laser, cavity optomechanics, and cavity quantum electrodynamics.https://ieeexplore.ieee.org/document/8398417/Subwavelength structuresmetamaterials.
spellingShingle Ze Lin Tan
Ken Liu
Wei Xu
Zhi Hong Zhu
Suspended Dielectric Mirrors at Deep Subwavelength Scale
IEEE Photonics Journal
Subwavelength structures
metamaterials.
title Suspended Dielectric Mirrors at Deep Subwavelength Scale
title_full Suspended Dielectric Mirrors at Deep Subwavelength Scale
title_fullStr Suspended Dielectric Mirrors at Deep Subwavelength Scale
title_full_unstemmed Suspended Dielectric Mirrors at Deep Subwavelength Scale
title_short Suspended Dielectric Mirrors at Deep Subwavelength Scale
title_sort suspended dielectric mirrors at deep subwavelength scale
topic Subwavelength structures
metamaterials.
url https://ieeexplore.ieee.org/document/8398417/
work_keys_str_mv AT zelintan suspendeddielectricmirrorsatdeepsubwavelengthscale
AT kenliu suspendeddielectricmirrorsatdeepsubwavelengthscale
AT weixu suspendeddielectricmirrorsatdeepsubwavelengthscale
AT zhihongzhu suspendeddielectricmirrorsatdeepsubwavelengthscale