Mechanically Induced Elastomeric Optical Transmittance Modulator
Mechanically Induced Elastomeric Optical Transmittance Modulator
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DOI：
10.1021/acsapm.1c00764
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发表时间：
2021-09
影响因子：
5
通讯作者：
Fangqi Chen;Yanpei Tian;Xiaojie Liu;Andrew Caratenuto;Y. Zheng
中科院分区：
文献类型：
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作者：
Fangqi Chen;Yanpei Tian;Xiaojie Liu;Andrew Caratenuto;Y. Zheng
近年来，具有可切换光学特性的光学器件因其广泛的工程应用而引起了人们的极大兴趣。光学特性的动态调节可以由各种类型的外部刺激触发。在这项工作中，报道了一种机械诱导弹性体光学透射率调制器。该设计由聚（二甲基硅氧烷）组成，这是一种在可见波长下透明的硅橡胶，表面沉积有金纳米薄膜。利用严格耦合波分析模型研究了几何参数对总透射率的影响。利用弹性体优异的拉伸能力，实现了法向透过率和总透过率的可逆调制。在80%的应变下，总透射率提高了42%。循环测试表明，即使在重复的应变循环之后，结构完整性和光学性能也保持稳定。这种弹性体光学透射率调制器由于其简单的设计和易于调节的特性，为实际应用开辟了道路。
Optical devices with switchable optical properties have attracted great interest in recent years because of their extensive engineering applications. The dynamic tuning of optical properties can be triggered by various types of external stimuli. In this work, a mechanically induced elastomeric optical transmittance modulator is reported. The design is composed of poly(dimethylsiloxane), a silicone-based rubber transparent at visible wavelengths, with gold nanofilms deposited on the surface. The influence of geometric parameters on the total transmittance is studied utilizing the Rigorous Coupled Wave Analysis model. Taking advantage of the excellent stretching capacity of the elastomer, reversible modulation of both normal and total transmittance is achieved. A 42% rise in the total transmittance is realized under a strain of 80%. Cycle testing illustrates stable structural integrity and optical performance even after repeated strain cycles. This elastomeric optical transmittance modulator opens avenues for practical applications due to its simple design and facile tunability.