Optical: systems and elements – Diffraction – From grating
Reexamination Certificate
2008-01-29
2008-01-29
Pritchett, Joshua L (Department: 2872)
Optical: systems and elements
Diffraction
From grating
C359S434000, C359S566000
Reexamination Certificate
active
10701324
ABSTRACT:
The present invention relates to a system of applying optical gradient forces to form a plurality of optical traps to manipulate small particles. The system includes a light source for generating a focused beam of light which is directed along an optical axis though a phase patterning optical element having a variable optical surface and which has a virtual lens encoded thereon. The optical element produces a plurality of beamlets that are coverged at a position between the optical element and a single transfer lens, and directed through the transfer lens to overlap at the back aperture of a focusing lens. The focusing lens coverges the beamlets to form a plurality of optical traps in the working focal region where particles to be examined, manipulated, or measured, are disposed.
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J. Liesener et al. (2000). “Multi-functional optical tweezers using computer-generated holograms”. Optics Communications, vol. 185, 77-82.
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Dufresne Eric
Grier David
Lopes Ward
Arryx, Inc.
Edwards, Esq. Jean C.
Pritchett Joshua L
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