Radiation forces on a Rayleigh dielectric sphere in a patterned optical near field.

We report on the study of the radiation forces exerted on a Rayleigh dielectric particle by a patterned optical near-field landscape at an interface decorated with resonant gold nanostructures. This configuration allows for the generation of a large array of surface subwavelength optical traps from an extended collimated beam, which may be of interest for parallel optical manipulation and sorting of submicrometer objects.

[1]  S Kawata,et al.  Movement of micrometer-sized particles in the evanescent field of a laser beam. , 1992, Optics letters.

[2]  Eric Bourillot,et al.  Squeezing the Optical Near-Field Zone by Plasmon Coupling of Metallic Nanoparticles , 1999 .

[3]  Keiji Sasaki,et al.  Three-dimensional Potential Analysis Of Radiation Pressure Exerted On A Single Microparticle , 1997, QELS '97., Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference.

[4]  Romain Quidant,et al.  Sub-wavelength patterning of the optical near-field. , 2004, Optics express.

[5]  Lukas Novotny,et al.  Theory of Nanometric Optical Tweezers , 1997 .

[6]  M. Nieto-Vesperinas,et al.  Optical trapping and manipulation of nano-objects with an apertureless probe. , 2002, Physical review letters.

[7]  K. Dholakia,et al.  Microfluidic sorting in an optical lattice , 2003, Nature.

[8]  Toshimitsu Asakura,et al.  Radiation forces on a dielectric sphere in the Rayleigh scattering regime , 1996 .

[9]  J. Hotta,et al.  Analysis of radiation pressure exerted on a metallic particle within an evanescent field. , 2000, Optics letters.

[10]  Hongxing Xu,et al.  Surface-plasmon-enhanced optical forces in silver nanoaggregates. , 2002, Physical review letters.

[11]  S Kawata,et al.  Optically driven Mie particles in an evanescent field along a channeled waveguide. , 1996, Optics letters.

[12]  M. Nieto-Vesperinas,et al.  Correction for Nieto-Vesperinas et al., Near-field photonic forces , 2004, Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[13]  Min Gu,et al.  Laser trapping and manipulation under focused evanescent wave illumination , 2004 .

[14]  J. Kottmann,et al.  Plasmon resonant coupling in metallic nanowires. , 2001, Optics express.

[15]  Satoshi Kawata,et al.  Radiation Force Exerted on Subwavelength Particles near a Nanoaperture , 1999 .

[16]  S. Chu,et al.  Observation of a single-beam gradient force optical trap for dielectric particles. , 1986, Optics letters.

[17]  Hiroshi Masuhara,et al.  Optical measurement of interaction potentials between a single microparticle and an evanescent field , 2000 .