Suspended Dielectric Mirrors at Deep Subwavelength Scale
Autor: | Ken Liu, Ze Lin Tan, Zhi Hong Zhu, Wei Xu |
---|---|
Rok vydání: | 2018 |
Předmět: |
lcsh:Applied optics. Photonics
Materials science 02 engineering and technology Dielectric 010402 general chemistry 01 natural sciences law.invention Optics law Lattice (order) lcsh:QC350-467 Electrical and Electronic Engineering Optomechanics Subwavelength structures business.industry Cavity quantum electrodynamics lcsh:TA1501-1820 021001 nanoscience & nanotechnology Laser Atomic and Molecular Physics and Optics 0104 chemical sciences Wavelength metamaterials Optical radiation 0210 nano-technology business Refractive index lcsh:Optics. Light |
Zdroj: | IEEE Photonics Journal, Vol 10, Iss 4, Pp 1-6 (2018) |
ISSN: | 1943-0647 |
DOI: | 10.1109/jphot.2018.2850883 |
Popis: | 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. |
Databáze: | OpenAIRE |
Externí odkaz: |