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Optimized Optical Tweezers Look Before Grabbing

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FREIBURG IM BREISGAU, Germany, Dec. 31, 2021 — Optical tweezers working in tandem will one day be able to grasp and manipulate cell clusters with a high level of dexterity, according to research from the University of Freiburg. The work would allow greater study of tiny objects such as miniature tumors. Computer-holographic optical tweezers capable of multiplied configurations are already used to control the positions of several optical tweezers simultaneously in 3D space. However, the method is unable to exert control over objects larger than approximately 1/10 mm; the tweezers run into difficulties because the size of the objects...Read full article

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    Published: December 2021
    Glossary
    optical tweezers
    Optical tweezers refer to a scientific instrument that uses the pressure of laser light to trap and manipulate microscopic objects, such as particles or biological cells, in three dimensions. This technique relies on the momentum transfer of photons from the laser beam to the trapped objects, creating a stable trapping potential. Optical tweezers are widely used in physics, biology, and nanotechnology for studying and manipulating tiny structures at the microscale and nanoscale levels. Key...
    nanophotonics
    Nanophotonics is a branch of science and technology that explores the behavior of light on the nanometer scale, typically at dimensions smaller than the wavelength of light. It involves the study and manipulation of light using nanoscale structures and materials, often at dimensions comparable to or smaller than the wavelength of the light being manipulated. Aspects and applications of nanophotonics include: Nanoscale optical components: Nanophotonics involves the design and fabrication of...
    Research & TechnologyOpticsLasersBiophotonicsoptical tweezerscellsMicroscopyUniversity of FreiburgmicrobiologyOptical trappingnanophotonicscontactlesssampleEurope

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