收稿日期: 2017-05-10
网络出版日期: 2017-07-30
基金资助
国家自然科学基金（No.61405125，No.61290313，No.61535004）；中国博士后基金（No.2015M572351，No.2016T90796）；中央高校基本科研业务费资助
Suspended-Core Photonic Microcells-Flexible and Highly Efficient Lab-in-Fiber Platforms
Received date: 2017-05-10
Online published: 2017-07-30
介绍一类在商用光子晶体光纤基础上制备的悬挂芯光子微单元.该微单元能通过较简单的选择性膨胀技术实现具有大倏逝场、高双折射、多芯等功能的多种悬挂芯结构，并能与单模光纤连接形成低损耗光纤在线单元.微单元内部基于倏逝场的光与物质相互作用区域与外部环境隔离，整体易于操作，是适用于光纤实验室研究的灵活平台.分析了几种典型悬挂芯光子微单元的消逝场、损耗、双折射等特性；利用微单元的一些特性开展应用研究，包括基于折射率探测原理的微单元气体压力和液体温度传感器、基于微单元纤芯微悬臂梁的加速度传感器、微单元光栅器件等.这些研究为推进光纤实验室技术的发展和应用提供了新思路.
汪超, 靳伟, 何海律, 杨帆, 齐云 . 悬挂芯光子微单元-灵活高效的光纤内嵌实验室[J]. 应用科学学报, 2017 , 35(4) : 460 -468 . DOI: 10.3969/j.issn.0255-8297.2017.04.003
We report a novel type of optical fiber in-line structures named suspendedcore photonic microcells. These microcells are fabricated by inflating selected air-columns in a commercial photonic crystal fiber, and can be made to have different suspendedcore structures. The microcells exhibit a range of novel optical properties such as large evanescent-field in air, high birefringence, and multiple waveguiding cores. The suspended core and the surrounding evanescent-field are isolated from external environment, and can act as robust platforms for light-matter interaction inside the microcells. The microcells can be connected to standard fiber systems with low loss. They are efficient platforms for lab-in-fiber researches. Properties of the microcells are discussed and examples of potential applications presented. The research reported here offers a new way for the development and application of lab-in-fiber technologies.
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