한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)
- 한국정밀공학회 2005년도 춘계학술대회 논문집
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- Pages.1501-1506
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- 2005
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- 2005-8446(pISSN)
Development of Multiple Beam Optical Tweezers
- Lee Dong-Jin (Department of Mechanical Engineering, Korea University) ;
- LeBrun Thomas W. (National Institute of Standards and Technology, Gaithersburg, MD, USA) ;
- Balijepalli Arvind (National Institute of Standards and Technology, Gaithersburg, MD, USA) ;
- Gorman JasonJ. (National Institute of Standards and Technology, Gaithersburg, MD, USA) ;
- Gagnon Cedric (National Institute of Standards and Technology, Gaithersburg, MD, USA) ;
- Hong Dae-Hie (Department of Mechanical Engineering, Korea University) ;
- Chang Esthe rH. (Department of Oncology, Georgetown University, Washington, DC, USA)
- 발행 : 2005.06.01
초록
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.
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