The purpose of this study is development of a trapping system for nano-particles by periodically localized light and of a
detecting system for the trapped state by an ellipsometoric method. Nano-particles are of interest for some different
attractive properties with a bulk body in terms of their reactivity. Those attractive properties are applicable to production
of an optical element and a device. For production of nano-particles, it is necessary to manipulate nano-particles and to
measure the trapped state without contact in micro region. In this study, periodically localized light which is generated
by the nano-periodic structure allows us to trap nano-particles. Evaluation of trapping can be accomplished by using a
rotating-analyzer ellipsometer for comparing the ellipsometrical parameter before and after trapping. In confirmation of
affectivity ellipsometrical method, we obtained that the trapped state associated with varying a shape of the nanoperiodic
structure depends on polarization properties. The trapping light intensity also was found to depend on trapping
volume of the nano-particles. From experimental results, the nano-particles can be trapped by the periodically localized
light. And the trapping volume was found to increase with increasing in trapping light intensity. Hence, this system
achieved trapping and deducing nano-particles.
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