A tunable submicro-optofluidic polymer filter based on guided-mode resonance.
A tunable submicro-optofluidic polymer filter based on guided-mode resonance.
复制标题
DOI：
10.1039/c4nr07233b
复制
发表时间：
2015-02
期刊：
影响因子：
6.7
通讯作者：
Guohui Xiao;Qiangzhong Zhu;Yang Shen;Kezheng Li;Mingkai Liu;Q. Zhuang;C. Jin
中科院分区：
文献类型：
--
作者：
Guohui Xiao;Qiangzhong Zhu;Yang Shen;Kezheng Li;Mingkai Liu;Q. Zhuang;C. Jin
具有可重构光谱特性的滤光片在广泛的应用中是非常可取的。我们提出并实验证明了一种可调谐的亚微光流聚合物导模谐振（PGMR）滤波器。该器件由夹在高折射率波导层和低折射率覆盖层之间的周期光栅组成，将亚微流体通道阵列和PGMR滤波器巧妙地集成在一起。采用时域有限差分（FDTD）方法来了解器件的光谱特性，确定合适的器件参数。采用双光束干涉光刻、浮动纳米膜转移和热键合技术相结合的方法制备聚合物导模谐振滤波器。实验结果表明，该滤波器具有较宽的调谐范围（13.181 nm）和较窄的可见光区带宽（85%）。这种亚微光流PGMR滤波器与现有的纳米/微流控技术高度兼容，在集成柔性光学系统中具有重要价值。
Optical filters with reconfigurable spectral properties are highly desirable in a wide range of applications. We propose and experimentally demonstrate a tunable submicro-optofluidic polymer guided-mode resonance (PGMR) filter. The device is composed of a periodic grating sandwiched between a high index waveguide layer and a low index capping layer, which integrates submicro-fluidic channel arrays and a PGMR filter elegantly. A finite difference time domain (FDTD) method is employed to understand the spectral properties and determine appropriate device parameters. We fabricated the polymer guided-mode resonance filter with a method combining two-beam interference lithography, floating nanofilm transfer and thermal bonding techniques. Experimental results show that our tunable submicro-optofluidic PGMR filters can provide a broad spectral tuning range (13.181 nm), a narrow bandwidth (85%) in the visible region. Such submicro-optofluidic PGMR filters are highly compatible with existing nano/microfluidic technologies and would be valuable for the integrated flexible optical system.