Observation of the discrete transition of optically trapped particle position in the vicinity of an interface
Observation of the discrete transition of optically trapped particle position in the vicinity of an interface
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DOI：
10.1063/1.1637947
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发表时间：
2004-01
影响因子：
4
通讯作者：
H. Fujiwara;H. Takasaki;J. Hotta;K. Sasaki
中科院分区：
文献类型：
--
作者：
H. Fujiwara;H. Takasaki;J. Hotta;K. Sasaki
使用纳米位置传感系统观察到在界面附近光学捕获的粒子的位置的离散过渡。这些在与界面的距离的位置中的离散转变归因于由于来自界面和颗粒的捕获激光束的反射和散射而引起的干涉效应。离散跃迁发生在约400 nm的均匀间隔处，对应于捕获激光束的驻波节点的间隔。
Discrete transitions in the position of a particle optically trapped in the vicinity of an interface are observed using a nanometer position sensing system. These discrete transitions in the position with distance from the interface are attributed to interference effects due to reflection and scattering of the trapping laser beam from the interface and the particle. The discrete transitions occurred at uniform intervals of ∼400 nm, corresponding to the spacing of standing wave nodes of the trapping laser beam.