Three-dimensional potential analysis of radiation pressure exerted on a single microparticle

被引：48

作者：

Sasaki, K ^{[1
]}

Tsukima, M ^{[1
]}

Masuhara, H ^{[1
]}

机构：

[1] OSAKA UNIV,DEPT APPL PHYS,SUITA,OSAKA 565,JAPAN

来源：

APPLIED PHYSICS LETTERS | 1997年 / 71卷 / 01期

关键词：

D O I：

10.1063/1.119461

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A system that makes it possible to precisely and instantaneously observe a potential energy of laser trapping as a function of three-dimensional position was developed for analyzing radiation pressure acting on a single microparticle in solution. Position sensing with a quadrant photodiode and total internal reflection microscopy are applied for measuring thermal Brownian motion of the trapped particle with similar to 10 nm resolution, and a trapping potential profile is estimated by a thermodynamical analysis based on the Boltzmann distribution. Characteristic features of the present system are discussed. (C) 1997 American Institute of Physics.

引用

页码：37 / 39

页数：3

共 12 条

[1]

FORCES OF A SINGLE-BEAM GRADIENT LASER TRAP ON A DIELECTRIC SPHERE IN THE RAY OPTICS REGIME [J].