A self-assembled super-resolution optical probe based on fiber optical tweezers

摘要

#$%^&*AU2020102261A420201029.pdf#####ABSTRACT The invention provides a self-assembled super-resolution optical probe based on fiber optical tweezers, characterized by the composition of a multi-core optical fiber dual trap optical tweezers system and two dielectric microspheres with different diameter. Among them, the multi-core fiber has circularly symmetric distributed peripheral cores and a center core, and the fiber end with symmetrical truncated cone structure focuses the trapping beam transmitted in the peripheral cores, forming dual optical tweezers along the axial of the fiber used to cascade and trap microspheres of two diameters. The center core of the multi-core fiber transmits short-wavelength photonic nano-jets illuminating light, the beam exits from the fiber end, then illuminates the microspheres trapped by the cascade dual optical tweezers. After the two-stage compression of the microspheres, the photonic nano-jets is generated. The invention can be used for nano-resolution detection, and widely used in the field of super-resolution fluorescence detection and imaging.11/5 DRAWINGS 11-3 FJG.1 T - - - - - - -5-2 5-2 1 5 3 1 21 4- 4 44 II I liii II1-3 (a) (C) ) FJG.2