Wang Qiong-Hua, Xiao Liang, Liu Chao, Li Lei
School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, 100191, China.
School of Electronics and Information Engineering, Sichuan University, Chengdu, 610065, China.
Sci Rep. 2019 May 8;9(1):7082. doi: 10.1038/s41598-019-43599-4.
The optofluidic devices including optofluidic lens, optical switch and liquid prism have found widespread applications in imaging, optical communication and lighting. Here, we report a novel optofluidic device called optofluidic variable optical path modulator. Our proposed modulator consists of two main chambers. The two chambers are connected by two tubes to form a closed-loop fluidic system. Two immiscible liquids are filled into the two chambers and form two L-L interfaces. A transparent sheet is placed between one L-L interface to get flat interface. When a voltage is applied on the device, the flat interface can move up and down. Thus, variable optical path can be obtained by applying a voltage. To prove the concept, we fabricate an optofluidic device whose largest movable distance of L-L interface is ~7.5 mm and the optical path length change is ~1.15 mm. The proposed optofluidic device has potential applications in imaging, adaptive optics, optical detection and so on.
包括光流控透镜、光开关和液体棱镜在内的光流控器件在成像、光通信和照明领域有着广泛的应用。在此，我们报道了一种名为光流控可变光程调制器的新型光流控器件。我们提出的调制器由两个主腔室组成。这两个腔室通过两根管子相连，形成一个闭环流体系统。两种互不相溶的液体被填充到两个腔室中，形成两个液-液界面。在其中一个液-液界面之间放置一块透明薄片，以获得平整的界面。当在该器件上施加电压时，平整的界面可以上下移动。因此，通过施加电压可以获得可变光程。为了验证这一概念，我们制作了一个光流控器件，其液-液界面的最大可移动距离约为7.5毫米，光程长度变化约为1.15毫米。所提出的光流控器件在成像、自适应光学、光学检测等方面具有潜在的应用。
