Opto-mechano transduction in bioinspired cilia: A fiber-coupled micro-force sensor with tunable sensitivity

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2025-09-09 DOI:10.1016/j.yofte.2025.104398

Yuqi You, Di Tong, Wenjie Yang, Yong Feng, Chunbo Su, Chunlian Lu, Tao Geng

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Abstract

Inspired by the mechano-transduction mechanism of natural cilia under mechanical stimulation, we propose and validate a bioinspired optical fiber micro-force sensor with tunable sensitivity. Leveraging fiber fusion splicing and laser positioning technologies, we fabricate cilia follicle on the interference arm of a Mach-Zehnder interferometer (MZI) structures. Through in-situ growth of polydimethylsiloxane (PDMS)-based artificial cilia within the cilia follicle, the sensor achieves precise force detection through wavelength drift modulation within the MZI. Experimental results demonstrate a micro-force measurement capability with the highest sensitivity level of 72.26 pm/mN, exhibiting a positive correlation between sensitivity and fiber optic substrate characteristics. Besides, the sensor establishes a novel opto-mechano transduction mechanism for micro-force sensing. This innovation holds transformative potential for applications in artificial intelligence skins and robotic tactile systems.

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生物激发纤毛的光-机械转导：具有可调灵敏度的纤维耦合微力传感器

受自然纤毛在机械刺激下的机械转导机制的启发，我们提出并验证了一种灵敏度可调的仿生光纤微力传感器。利用光纤熔接和激光定位技术，在Mach-Zehnder干涉仪（MZI）结构的干涉臂上制备了纤毛毛囊。该传感器通过在纤毛毛囊内原位生长聚二甲基硅氧烷（PDMS）为基础的人工纤毛，通过波长漂移调制在MZI内实现精确的力检测。实验结果表明，微力测量的灵敏度最高可达72.26 pm/mN，灵敏度与光纤衬底特性呈正相关。此外，该传感器还为微力传感建立了一种新的光-力转导机制。这一创新在人工智能皮肤和机器人触觉系统的应用中具有革命性的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.