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In our country, a three-dimensional optical fiber micro-optical tweezers (micromanipulator) has been constructed at the end of commercial optical fibers. The output force of the micro-tweezers is more than 100,000 times that of traditional optical tweezers.

MarsBitNews
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Mars Finance reported that, according to Anhui University, Pan Deng, a young faculty member at the university’s National Key Laboratory of Optoelectronic Information Acquisition and Protection Technology, in collaboration with a team from the University of Science and Technology of China, proposed a femtosecond laser composite manufacturing method for fiber-based integrated devices. At the end of a commercial optical fiber, the team built a three-dimensional fiber micro-manipulator that enables high-precision, low-damage, and programmable three-dimensional manipulation of micron-scale targets. The research findings were recently published in the international journal Nature. The three-dimensional fiber micro-manipulator developed by the research team delivers an output force more than 100,000 times greater than that of conventional optical tweezers, allowing precise manipulation of micron-scale targets and accurate assembly of complex microstructures, demonstrating important application value in the field of micromanipulation. In addition, the micro-manipulator acts like a “miniature dexterous hand” at the cellular scale, enabling precise operations on microscopic objects such as single cells, and it can carry out micro-scale sampling within narrow spaces of hundreds of micrometers, providing a new technological pathway for areas including life and health and minimally invasive medical care. (Science and Technology Daily)
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