利用光子反冲增强光驱动气象仪的扭矩

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-03-03 DOI:10.1021/acs.nanolett.4c06410

Mahdi Shanei, Gan Wang, Peter Johansson, Giovanni Volpe, Mikael Käll

{"title":"利用光子反冲增强光驱动气象仪的扭矩","authors":"Mahdi Shanei, Gan Wang, Peter Johansson, Giovanni Volpe, Mikael Käll","doi":"10.1021/acs.nanolett.4c06410","DOIUrl":null,"url":null,"abstract":"Contact-free rotation of microscopic objects in aqueous environments based on optical forces is a powerful concept in the development of light-driven microrobots, micromachines, torque transducers, and rheological sensors. Here, we demonstrate freely movable quasi-two-dimensional metasurface rotors with lateral dimensions up to 100 μm while still exhibiting controllable and steady rotation when submerged in water. The metarotors utilize photon recoil to produce strong optical torque by deflecting low-intensity laser light toward high angles via long lever arms, which amplify the creation of orbital angular momentum. We find that the torque generated by a single metarotor can be used to rotate hundreds of passive microparticles present in solution, suggesting potential applications as particle mixers in microfluidics and microbiology. Further development might involve utilizing metarotors as components in future microrobots for biomedicine and beyond.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"29 1","pages":""},"PeriodicalIF":9.1000,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Harnessing Photon Recoil for Enhanced Torque on Light-Driven Metarotors\",\"authors\":\"Mahdi Shanei, Gan Wang, Peter Johansson, Giovanni Volpe, Mikael Käll\",\"doi\":\"10.1021/acs.nanolett.4c06410\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Contact-free rotation of microscopic objects in aqueous environments based on optical forces is a powerful concept in the development of light-driven microrobots, micromachines, torque transducers, and rheological sensors. Here, we demonstrate freely movable quasi-two-dimensional metasurface rotors with lateral dimensions up to 100 μm while still exhibiting controllable and steady rotation when submerged in water. The metarotors utilize photon recoil to produce strong optical torque by deflecting low-intensity laser light toward high angles via long lever arms, which amplify the creation of orbital angular momentum. We find that the torque generated by a single metarotor can be used to rotate hundreds of passive microparticles present in solution, suggesting potential applications as particle mixers in microfluidics and microbiology. Further development might involve utilizing metarotors as components in future microrobots for biomedicine and beyond.\",\"PeriodicalId\":53,\"journal\":{\"name\":\"Nano Letters\",\"volume\":\"29 1\",\"pages\":\"\"},\"PeriodicalIF\":9.1000,\"publicationDate\":\"2025-03-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nano Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.nanolett.4c06410\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Letters","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acs.nanolett.4c06410","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

基于光力的水环境中微观物体的无接触旋转是光驱动微型机器人、微机械、扭矩传感器和流变传感器发展中的一个强大概念。在这里，我们展示了可自由移动的准二维超表面转子，其横向尺寸高达100 μm，当浸入水中时仍然表现出可控和稳定的旋转。气象仪利用光子后坐力，通过长杠杆臂将低强度激光偏转到高角度，从而产生强大的光扭矩，从而放大轨道角动量的产生。我们发现，单个流量计产生的扭矩可用于旋转溶液中存在的数百个被动微粒，这表明其在微流体和微生物学中的潜在应用。进一步的发展可能包括利用微转子作为未来生物医学和其他领域的微型机器人的组件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Harnessing Photon Recoil for Enhanced Torque on Light-Driven Metarotors

查看原文本刊更多论文

Harnessing Photon Recoil for Enhanced Torque on Light-Driven Metarotors

Contact-free rotation of microscopic objects in aqueous environments based on optical forces is a powerful concept in the development of light-driven microrobots, micromachines, torque transducers, and rheological sensors. Here, we demonstrate freely movable quasi-two-dimensional metasurface rotors with lateral dimensions up to 100 μm while still exhibiting controllable and steady rotation when submerged in water. The metarotors utilize photon recoil to produce strong optical torque by deflecting low-intensity laser light toward high angles via long lever arms, which amplify the creation of orbital angular momentum. We find that the torque generated by a single metarotor can be used to rotate hundreds of passive microparticles present in solution, suggesting potential applications as particle mixers in microfluidics and microbiology. Further development might involve utilizing metarotors as components in future microrobots for biomedicine and beyond.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.