OPTICAL TRAPPING OF LOW-REFRACTIVE-INDEX MICROFABRICATED OBJECTS USING RADIATION PRESSURE EXERTED ON THEIR INNER WALLS

被引：18

作者：

HIGURASHI, E

OHGUCHI, O

UKITA, H

机构：

[1] NTT Interdisciplinary Research Laboratories, Musashino-shi Tokyo, 180, 3-9-11, Midori-cho

[2] Department of Electrical and Electronic Engineering, Ritsumeikan University, Noji-cho, Kusatsu-shi, Shiga

来源：

OPTICS LETTERS | 1995年 / 20卷 / 19期

关键词：

D O I：

10.1364/OL.20.001931

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical trapping of transparent ring-shaped micrometer-sized objects with a refractive index lower than that of the surrounding medium has been demonstrated by use of a strongly focused TEM(00)-mode laser beam. Axial trapping of these objects is a result of the upward radiation pressure induced when the incident light strikes the inner wall and transmitted light leaves from the bottom. Transverse trapping of these objects occurs because the total repulsive radiation pressure exerted on the inner wall of the object is directed toward the laser beam axis. Three-dimensional manipulation of fluorinated polyimide micro-objects (refractive index n(1) = 1.525, outer diameter 10 mu m, inner diameter 5 mu m, and thickness 5.7 mu m) in a high-refractive-index liquid (n(2) = 1.605) was experimentally shown to be possible by use of an objective lens with a wide range of numerical apertures from 1.25 to 0.5. (C) 1995 Optical Society of America

引用

页码：1931 / 1933

页数：3

共 13 条

[1] OBSERVATION OF A SINGLE-BEAM GRADIENT FORCE OPTICAL TRAP FOR DIELECTRIC PARTICLES [J].

ASHKIN, A ;

DZIEDZIC, JM ;

BJORKHOLM, JE ;

CHU, S .

OPTICS LETTERS, 1986, 11 (05) :288-290

[2] OPTICAL TRAPPING AND MANIPULATION OF SINGLE CELLS USING INFRARED-LASER BEAMS [J].

ASHKIN, A ;

DZIEDZIC, JM ;

YAMANE, T .

NATURE, 1987, 330 (6150) :769-771

[3] ACCELERATION AND TRAPPING OF PARTICLES BY RADIATION PRESSURE [J].

ASHKIN, A .

PHYSICAL REVIEW LETTERS, 1970, 24 (04) :156-&

[4] OBSERVATION OF LIGHT-SCATTERING FROM NONSPHERICAL PARTICLES USING OPTICAL LEVITATION [J].

ASHKIN, A ;

DZIEDZIC, JM .

APPLIED OPTICS, 1980, 19 (05) :660-668

[5] OPTICALLY INDUCED ROTATION OF ANISOTROPIC MICRO-OBJECTS FABRICATED BY SURFACE MICROMACHINING [J].

HIGURASHI, E ;

UKITA, H ;

TANAKA, H ;

OHGUCHI, O .

APPLIED PHYSICS LETTERS, 1994, 64 (17) :2209-2210

[6]

Higurashi E., 1994, Proceedings IEEE Micro Electro Mechanical Systems. An Investigation of Micro Structures, Sensors, Actuators, Machines and Robotic Systems (Cat. No.94CH3404-1), P291, DOI 10.1109/MEMSYS.1994.555825

[7] POLYIMIDES DERIVED FROM 2,2'-BIS(TRIFLUOROMETHYL)-4,4'-DIAMINOBIPHENYL .4. OPTICAL-PROPERTIES OF FLUORINATED POLYIMIDES FOR OPTOELECTRONIC COMPONENTS [J].