Radiometric levitation of micron sized spheres

M. Lewittes; S. Arnold; G. Oster

doi:10.1063/1.93146

Radiometric levitation of micron sized spheres

M. Lewittes, S. Arnold, G. Oster

Research output: Contribution to journal › Article › peer-review

Abstract

Radiometric levitation of a 20-μ-diam dye-impregnated glycerol sphere has been observed at intensities as low as ∼1 W/cm² in air at 30 Torr. The levitation has been effected on both strongly absorbing spheres in the direction of the light and weakly absorbing spheres in the opposite sense. Both strongly and weakly absorbing spheres are found to laterally seek an intensity minimum. Consequently particles were stably held in the focused beam of an Ar⁺ laser (4880 Å) operating in the TEM^* ₀₁ (doughnut) mode.

Original language	English (US)
Pages (from-to)	455-457
Number of pages	3
Journal	Applied Physics Letters
Volume	40
Issue number	6
DOIs	https://doi.org/10.1063/1.93146
State	Published - 1982

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.93146

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title = "Radiometric levitation of micron sized spheres",

abstract = "Radiometric levitation of a 20-μ-diam dye-impregnated glycerol sphere has been observed at intensities as low as ∼1 W/cm2 in air at 30 Torr. The levitation has been effected on both strongly absorbing spheres in the direction of the light and weakly absorbing spheres in the opposite sense. Both strongly and weakly absorbing spheres are found to laterally seek an intensity minimum. Consequently particles were stably held in the focused beam of an Ar+ laser (4880 {\AA}) operating in the TEM* 01 (doughnut) mode.",

author = "M. Lewittes and S. Arnold and G. Oster",

year = "1982",

doi = "10.1063/1.93146",

language = "English (US)",

volume = "40",

pages = "455--457",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - Radiometric levitation of micron sized spheres

AU - Lewittes, M.

AU - Arnold, S.

AU - Oster, G.

PY - 1982

Y1 - 1982

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AB - Radiometric levitation of a 20-μ-diam dye-impregnated glycerol sphere has been observed at intensities as low as ∼1 W/cm2 in air at 30 Torr. The levitation has been effected on both strongly absorbing spheres in the direction of the light and weakly absorbing spheres in the opposite sense. Both strongly and weakly absorbing spheres are found to laterally seek an intensity minimum. Consequently particles were stably held in the focused beam of an Ar+ laser (4880 Å) operating in the TEM* 01 (doughnut) mode.

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JO - Applied Physics Letters

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Radiometric levitation of micron sized spheres

Abstract

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