Patent · US Active

Optical tweezers based on total internal reflection micro-optics mounted on the tip of a single mode optical fiber

US11923102B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Inventors

Asa Asadollahbaik · Berlin, DE
Simon Thiele · Stuttgart, DE
Alois Herkommer · Aalen, DE
Harald Giessen · Bonn, DE
Jochen Fick · Les Glovettes, FR

Key dates

Filing date	Dec 2, 2021
Grant date	Mar 5, 2024
Priority date	—
Expiry date	Dec 2, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG02B21/32
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present disclosure relates to a rotationally symmetric dielectric structure for optical beam shaping and for trapping and manipulating individual particles and living biological cells in aqueous medium, concentrically mounted on the facet of a single-mode optical fiber, wherein the structure comprises at least three total reflection surfaces configured to split a light field emerging from the single-mode optical fiber into at least two separate light paths and wherein the at least three total reflection surfaces are further configured to bring the separate light paths together as a ring beam in a common focal point.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.