温度不变的元表面具有温度不变的元表面
Shany Zrihan Cohen1,2, Danveer Singh1,2, Sukanta Nandi1,2
1Faculty of Engineering, Bar-Ilan University, Ramat-Gan 5290002, Israel.
Nanophotonics (Berlin, Germany)
|December 5, 2024
概括
研究人员使用混合共振器开发了温度不变的纳米光子设备. 这种方法可以弥补热效应,确保在各种温度和光谱频段中稳定的光学性能.
科学领域:
- 纳米光子学 纳米光子学
- 材料科学 材料科学 材料科学
- 光电学是指光电子产品.
背景情况:
- 热效应显著影响材料性能,影响光电子设备.
- 热光学 (TO) 效应,即折射率与温度 (dn/dT) 的变化,使可调节的光学设备成为可能,但在静态应用中会导致不稳定.
- 由于温度变化,共振,振幅和相位的不良漂移发生.
研究的目的:
- 提出一种系统的方法,以减轻纳米光子设备中热诱导的光学波动.
- 设计具有有效TO系数为零的纳米光子组件 (dneff/dT ≈ 0).
- 在元原子和元表面中实现温度不变的性能.
主要方法:
- 使用由两种具有对立TO分散度 (dn/dT < 0 和 dn/dT > 0) 的材料制成的混合亚波长共振器.
- 通过仔细选择具有相反热敏度的材料来弥补TO变化.
- 证明方法在广泛的温度范围和广泛的光谱带的有效性.
主要成果:
- 在工程纳米光子组件中实现了有效TO系数为零 (dneff/dT ≈ 0).
- 证明了温度不变的共振频率,振幅和相位响应.
- 在广泛的温度范围内对元原子和元表面的验证性能.
结论:
- 拟议的混合共振器方法有效地减轻纳米光子学中的热效应.
- 这种方法可以创建稳定的,温度不变的光电子设备.
- 控制TO分散为纳米光子系统提供了先进的光操纵功能.
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