Rigorous diffraction theory applied to the analysis of the optical force on elliptical nano- and micro-cylinders

被引:29
作者
Rockstuhl, C [1 ]
Herzig, HP [1 ]
机构
[1] Univ Neuchatel, Inst Microtechnol, CH-2000 Neuchatel, Switzerland
来源
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2004年 / 6卷 / 10期
关键词
rigorous diffraction theory; MMP; optical force; optical tweezer; trapping;
D O I
10.1088/1464-4258/6/10/001
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Illumination of nano- and micro-particles with a highly focused laser beam will exert a force on them that depends on different parameters, such as the particle size, refractive index and beam waist. In this paper rigorous diffraction theories are used to calculate the force on elliptically shaped dielectric cylinders in three different size regimes. We analyse the conditions for which the particles are attracted or repelled from the optical axis as a function of the geometry. Such a shape dependent response to optical wave-fields could be used to sort particles.
引用
收藏
页码:921 / 931
页数:11
相关论文
共 38 条
[1]   Optical forces on small particles:: attractive and repulsive nature and plasmon-resonance conditions [J].
Arias-González, JR ;
Nieto-Vesperinas, M .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2003, 20 (07) :1201-1209
[2]   Optical trapping and manipulation of neutral particles using lasers [J].
Ashkin, A .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1997, 94 (10) :4853-4860
[3]   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
[4]   OPTICAL LEVITATION BY RADIATION PRESSURE [J].
ASHKIN, A ;
DZIEDZIC, JM .
APPLIED PHYSICS LETTERS, 1971, 19 (08) :283-&
[5]   ACCELERATION AND TRAPPING OF PARTICLES BY RADIATION PRESSURE [J].
ASHKIN, A .
PHYSICAL REVIEW LETTERS, 1970, 24 (04) :156-&
[6]   THEORETICAL DETERMINATION OF NET-RADIATION FORCE AND TORQUE FOR A SPHERICAL-PARTICLE ILLUMINATED BY A FOCUSED LASER-BEAM [J].
BARTON, JP ;
ALEXANDER, DR ;
SCHAUB, SA .
JOURNAL OF APPLIED PHYSICS, 1989, 66 (10) :4594-4602
[7]   Orientation of biological cells using plane-polarized Gaussian beam optical tweezers [J].
Bayoudh, S ;
Nieminen, TA ;
Heckenberg, NR ;
Rubinsztein-Dunlop, H .
JOURNAL OF MODERN OPTICS, 2003, 50 (10) :1581-1590
[8]   A PERFECTLY MATCHED LAYER FOR THE ABSORPTION OF ELECTROMAGNETIC-WAVES [J].
BERENGER, JP .
JOURNAL OF COMPUTATIONAL PHYSICS, 1994, 114 (02) :185-200
[9]   Coupled dipole method determination of the electromagnetic force on a particle over a flat dielectric substrate [J].
Chaumet, PC ;
Nieto-Vesperinas, M .
PHYSICAL REVIEW B, 2000, 61 (20) :14119-14127
[10]   Trapping of low-index microparticles in an optical vortex [J].
Gahagan, KT ;
Swartzlander, GA .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1998, 15 (02) :524-534