Minin Oleg V, Cao Yinghui, Minin Igor V
Nondestructive Testing School, Tomsk Polytechnic University, 36 Lenin Avenue, Tomsk 634050, Russia.
College of Computer Science and Technology, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
Nanomaterials (Basel). 2023 Jul 26;13(15):2168. doi: 10.3390/nano13152168.
This paper pays attention to the broader interest of freezing water droplets in mesotronics, particularly to their use as a new all-optical device platform. Here, we show that a freezing mesoscale water droplet with a low Bond number can behave as fully biocompatible natural microlense to form a photonic hook for application in a tunable temperature-controlled optical switch. We first introduced and demonstrated the basic concepts of an optical switch without changes in the wavelength of illumination of a particle or any moving parts being involved. The principle of the operation of the switch is based on the temperature-induced phase change inside the water droplet's refractive index. The simulation results show that the optical isolation of switched channels for an optical switch with linear dimensions of about 15 λ based on a freezing water droplet can reach 10 dB in the process of temperature variation at a fixed wavelength. The use of freezing mesoscale droplets acting as a time-domain photonic hook generator open an intriguing route for optical switching in multifunctional green electronics tools for sensing, integrated optics and optical computers.
本文关注中观电子学中冷冻水滴更广泛的应用前景，特别是将其用作新型全光器件平台。在此，我们表明，具有低邦德数的冷冻中尺度水滴可作为完全生物相容的天然微透镜，形成光子钩，用于可调温控光开关。我们首次引入并演示了一种光开关的基本概念，该光开关不涉及粒子照明波长的变化或任何移动部件。该开关的工作原理基于温度引起的水滴折射率内的相变。模拟结果表明，基于冷冻水滴的线性尺寸约为15λ的光开关，在固定波长的温度变化过程中，开关通道的光隔离度可达10dB。利用冷冻中尺度水滴作为时域光子钩发生器，为多功能绿色电子工具中的光开关开辟了一条有趣的途径，可用于传感、集成光学和光学计算机。
