dorsal/arxiv
View SchemaOptical trapping of a cube
| Authors | A. M. Branczyk, T. A. Nieminen, N. R. Heckenberg, H. Rubinsztein-Dunlop |
|---|---|
| Categories | |
| ArXiv ID | physics/0702045 |
| URL | https://arxiv.org/abs/physics/0702045 |
| Journal | in R. Sang and J. Dobson (eds), Australian Institute of Physics (AIP) 17th National Congress 2006: Refereed Papers (Australian Institute of Physics, 2006) [CD-ROM, unpaginated] |
Abstract
The successful development and optimisation of optically-driven micromachines will be greatly enhanced by the ability to computationally model the optical forces and torques applied to such devices. In principle, this can be done by calculating the light-scattering properties of such devices. However, while fast methods exist for scattering calculations for spheres and axisymmetric particles, optically-driven micromachines will almost always be more geometrically complex. Fortunately, such micromachines will typically possess a high degree of symmetry, typically discrete rotational symmetry. Many current designs for optically-driven micromachines are also mirror-symmetric about a plane. We show how such symmetries can be used to reduce the computational time required by orders of magnitude. Similar improvements are also possible for other highly-symmetric objects such as crystals. We demonstrate the efficacy of such methods by modelling the optical trapping of a cube, and show that even simple shapes can function as optically-driven micromachines.
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"abstract": "The successful development and optimisation of optically-driven micromachines\nwill be greatly enhanced by the ability to computationally model the optical\nforces and torques applied to such devices. In principle, this can be done by\ncalculating the light-scattering properties of such devices. However, while\nfast methods exist for scattering calculations for spheres and axisymmetric\nparticles, optically-driven micromachines will almost always be more\ngeometrically complex. Fortunately, such micromachines will typically possess a\nhigh degree of symmetry, typically discrete rotational symmetry. Many current\ndesigns for optically-driven micromachines are also mirror-symmetric about a\nplane. We show how such symmetries can be used to reduce the computational time\nrequired by orders of magnitude. Similar improvements are also possible for\nother highly-symmetric objects such as crystals. We demonstrate the efficacy of\nsuch methods by modelling the optical trapping of a cube, and show that even\nsimple shapes can function as optically-driven micromachines.",
"arxiv_id": "physics/0702045",
"authors": [
"A. M. Branczyk",
"T. A. Nieminen",
"N. R. Heckenberg",
"H. Rubinsztein-Dunlop"
],
"categories": [
"physics.optics"
],
"journal_ref": "in R. Sang and J. Dobson (eds), Australian Institute of Physics\n (AIP) 17th National Congress 2006: Refereed Papers (Australian Institute of\n Physics, 2006) [CD-ROM, unpaginated]",
"title": "Optical trapping of a cube",
"url": "https://arxiv.org/abs/physics/0702045"
},
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