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激光捕获技术是利用光辐射力来捕捉、移动和操纵微粒的先进技术。光镊即单光束梯度力光阱是通过在高度会聚的激光束束腰附近所产生的极高的场强梯度来形成皮牛顿量级的力,可以三维地捕获和操纵微小粒子。阐述了激光捕获技术的模型和原理以及系统的基本结构;追踪了激光捕获技术的最新研究进展;介绍了非高斯型光阱、光纤光阱和全息光镊等几种特殊形式,并分析了每种形式的特点。展望了激光捕获技术的发展前景。
Laser capture technology is the use of optical radiation to capture, move and manipulate the advanced technology particles. Optical tweezers, ie, single-beam gravitational light traps, form skin-Newtonian forces by virtue of the extremely high field-strength gradient created near the highly converging laser beam waist to capture and manipulate minute particles three-dimensionally. The model and principle of laser capture technology and the basic structure of the system are described. The latest research progress of laser capture technology is followed. Some special forms of non-Gaussian optical trap, fiber optical trap and holographic optical tweezers are introduced, The form of the characteristics. The prospect of laser capture technology is prospected.