One Dimensional Photonic Crystals Using Ultrahigh Refractive Index Chalcogenide Hybrid Inorganic/Organic Polymers,ACS Macro Letters

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One Dimensional Photonic Crystals Using Ultrahigh Refractive Index Chalcogenide Hybrid Inorganic/Organic Polymers
ACS Macro Letters ( IF 5.1 ) Pub Date : 2018-07-02 00:00:00 , DOI: 10.1021/acsmacrolett.8b00245
Tristan S Kleine ₁ , Liliana Ruiz Diaz ₂ , Katrina M Konopka ₁ , Laura E Anderson ₁ , Nicholas G Pavlopolous ₁ , Nicholas P Lyons ₂ , Eui Tae Kim ₃ , Youngkeol Kim ₃ , Richard S Glass ₁ , Kookheon Char ₃ , Robert A Norwood ₂ , Jeffrey Pyun _{1,

3}

Affiliation

We report on the fabrication of wholly polymeric one-dimensional (1-D) photonic crystals (i.e., Bragg reflectors, Bragg mirrors) via solution processing for use in the near (NIR) and the short wave (SWIR) infrared spectrum (1–2 μm) with very high reflectance (R ∼ 90–97%). Facile fabrication of these highly reflective films was enabled by direct access to solution processable, ultrahigh refractive index polymers, termed, Chalcogenide Hybrid Inorganic/Organic Polymers (CHIPs). The high refractive index (n) of CHIPs materials (n = 1.75–2.10) allowed for the production of narrow band IR Bragg reflectors with high refractive index contrast (Δn ∼ 0.5) when fabricated with low n polymers, such as cellulose acetate (n = 1.47). This is the highest refractive index contrast (Δn ∼ 0.5) demonstrated for an all-polymeric Bragg mirror which directly enabled high reflectivity from films with 22 layers or less. Facile access to modular, thin, highly reflective films from inexpensive CHIPs materials offers a new route to IR Bragg reflectors and other reflective coatings with potential applications for IR photonics, commercial sensing, and LIDAR applications.

中文翻译：

使用超高折射率硫属化物混合无机/有机聚合物的一维光子晶体

我们报告了通过溶液处理制备全聚合一维 (1-D) 光子晶体（即布拉格反射器、布拉格镜），用于近红外 (NIR) 和短波 (SWIR) 红外光谱 (1- 2 μm）具有非常高的反射率（R∼90-97 %）。通过直接获得可溶液加工的超高折射率聚合物（称为硫属化物混合无机/有机聚合物 (CHIP)），可以轻松制造这些高反射膜。CHIPs 材料 ( n = 1.75–2.10)的高折射率 ( n ) 允许在用低n制造时生产具有高折射率对比度 ( Δn ∼ 0.5)的窄带红外布拉格反射器聚合物，例如醋酸纤维素 ( n = 1.47)。这是全聚合物布拉格反射镜的最高折射率对比度（Δn ~0.5），该反射镜直接使 22 层或更少的薄膜具有高反射率。从廉价的 CHIP 材料中轻松获得模块化、薄、高反射膜为红外布拉格反射器和其他反射涂层提供了一条新途径，在红外光子学、商业传感和激光雷达应用中具有潜在应用。

更新日期：2018-07-02

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