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Near real-time measurement of forces applied by an optical trap to a rigid cylindrical object

机译：光学陷波器对刚性圆柱体施加的力的近实时测量

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摘要

An automated data acquisition and processing system is established to measure the force applied by an optical trap to an object of unknown composition in real time. Optical traps have been in use for the past 40 years to manipulate microscopic particles, but the magnitude of applied force is often unknown and requires extensive instrument characterization. Measuring or calculating the force applied by an optical trap to nonspheri-cal particles presents additional difficulties which are also overcome with our system. Extensive experiments and measurements using well-characterized objects were performed to verify the system performance.
机译：建立了自动数据采集和处理系统，以实时测量光阱对未知成分的物体施加的力。在过去的40年中，使用了光阱来操纵微观粒子，但是所施加的力的大小通常是未知的，并且需要进行广泛的仪器表征。测量或计算光阱对非球形粒子施加的力会带来其他困难，我们的系统也可以克服这些困难。使用特性明确的对象进行了广泛的实验和测量，以验证系统性能。

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  • 来源
    《Optical engineering》 |2014年第7期|074110.1-074110.8|共8页
  • 作者

    Joseph Glaser; David Hoeprich; Andrew Resnick;

  • 作者单位

    Cleveland State University, Center for Gene Regulation in Health and Disease, Department of Physics, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States;

    Cleveland State University, Center for Gene Regulation in Health and Disease, Department of Physics, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States;

    Cleveland State University, Center for Gene Regulation in Health and Disease, Department of Physics, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    laser tweezers; optical trapping;

    机译：激光镊子光学陷阱;

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