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Light‐Induced In‐Plane Rotation of Microobjects on Microfibers (Laser Photonics Rev. 16(5)/2022)
Author(s) -
Lyu Wei,
Tang Weiwei,
Yan Wei,
Qiu Min
Publication year - 2022
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.202270021
Subject(s) - microfiber , photonics , rotation (mathematics) , physics , optics , plane (geometry) , asymmetry , laser light , laser , optoelectronics , materials science , composite material , geometry , mathematics , quantum mechanics
Optical Manipulation of Microobjects In article number 2100561, Wei Lyu, Weiwei Tang, Wei Yan, and Min Qiu realize in‐plane rotation of a gold microplate on a microfiber by pulsed light. The motion is attributed to light‐induced elastic waves other than ‘conventional’ optical force that is too tiny to tame friction between two solid interfaces. The underlying mechanisms highlight the joint role of spatial gradient of optical absorption and asymmetry in two wings of the plate, which lead to unbalanced, nonuniform elastic waves. The results offer new insights into the study of the light‐induced actuation of microobjects in nonliquid environments.