Miscles Eduardo J, Zohrabi Mo, Gopinath Juliet T, Bright Victor M
Opt Express. 2024 Oct 7;32(21):36632-36645. doi: 10.1364/OE.536641.
This study demonstrates the fabrication and evaluation of a monolithic electrowetting prism with a minimized electrode gap. The electrically tunable prism is capable of two-dimensional beam steering of approximately ±4 degrees under voltage differentials up to ±15 V. The main innovation lies in reducing the electrode gap to 30 μm, accomplished using direct write laser lithography on three dimensional substrates. Through simulations and experimental validation, we show that reducing the gap between electrodes to 30 μm enables the transmission of a 1.2 mm diameter beam with negligible impact on imaging quality. The improved imaging quality makes electrowetting prisms an attractive option for future advancements in optical scanning technologies.
本研究展示了一种具有最小化电极间隙的单片式电润湿棱镜的制造与评估。这种电可调棱镜在高达±15 V的电压差下能够实现约±4度的二维光束转向。主要创新在于将电极间隙减小到30μm，这是通过在三维基板上采用直接写入激光光刻技术实现的。通过模拟和实验验证，我们表明将电极之间的间隙减小到30μm能够使直径为1.2 mm的光束传输，且对成像质量的影响可忽略不计。成像质量的提高使电润湿棱镜成为光学扫描技术未来发展的一个有吸引力的选择。
