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Development of Multiple Beam Optical Tweezers



Dongjin Lee, Thomas W. LeBrun, Arvind Balijepalli, Jason J. Gorman, Cedric V. Gagnon, Daehie Hong, Esther H. Chang


This paper presents the design of a multiple beam optical tweezers instrument used for manipulating micro/nano-sized components. The basic equations used in designing the optical tweezers are derived and the stable and time-sharing multiple beam optical tweezers are constructed with scanning mirrors. The laser beam passes through a series of optical components such as lenses, mirrors, and scanning mirrors, and overfills the entrance aperture of microscope objective, which gives a stable trap. By rotating the laser beam with the scanning mirror, the focal positions are translated in the specimen plane and multiple micro/nano-sized objects can be moved. The constructed optical tweezers is used to manipulate cells and liposomes simultaneously and to trap multiple nano-wires. The experiments prove that the developed optical tweezers can be a very versatile manipulation tool for studying gene therapy and nano device fabrication.
Proceedings Title
Proceedings of the Korean Society of Precision Engineering Conference
Conference Dates
June 1, 2005
Conference Location
Daejeon, KR
Conference Title
Spring Conference of Korean Society of Precision Engineering


optical tweezers, optical trap, multiple optical traps, micro/nano manipulation, nano fabrication, micro/nano particle, nano-wire


Lee, D. , LeBrun, T. , Balijepalli, A. , Gorman, J. , Gagnon, C. , Hong, D. and Chang, E. (2005), Development of Multiple Beam Optical Tweezers, Proceedings of the Korean Society of Precision Engineering Conference, Daejeon, KR (Accessed June 24, 2024)


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Created May 31, 2005, Updated October 12, 2021