Vortex optical fiber probe, preparation method and scanning probe and micro-nano manipulation system

By fabricating vortex fiber probes and combining them with 3D printing technology and atomic force microscopy, the challenges of optical and mechanical detection using fiber probes in nanoscale measurements have been solved, enabling efficient micro-nano manipulation and sample surface imaging.

CN116360038BActive Publication Date: 2026-06-12SHANGHAI UNIV
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Patent Information

Application Number
CN202310366340.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-04
Publication Date
2026-06-12
Estimated Expiration
2043-04-04

AI Technical Summary

Technical Problem

Existing fiber optic probes are difficult to use in the field of nanoscale measurement to achieve efficient optical and mechanical detection simultaneously, especially in scanning probe microscopy, where they cannot effectively measure mechanical information such as the interaction forces, stress, and irradiation force between samples.

Method used

A vortex fiber probe was fabricated using general-purpose optical fiber and 3D printing technology, including tapering and printing a spiral phase plate and tip in the transition region to form a probe capable of generating vortex beams, which was then detected using atomic force microscopy.

Benefits of technology

It combines optical and mechanical detection, enabling the generation of vortex beams in micro-nano manipulation for sample surface imaging and mechanical detection. It is flexible in operation and precise in control, and is suitable for the rotational manipulation of biological cells and chemical material molecules.

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Abstract

The application provides a vortex optical fiber probe, a preparation method, a scanning probe and a micro-nano manipulation system. The vortex optical fiber probe comprises: an optical fiber, the optical fiber is subjected to a tapering treatment to form a base and a transition zone connected with the base; and a micro-nano structure located at one end of the transition zone, the micro-nano structure comprises a spiral phase plate and a needle tip at the end of the micro-nano structure, and the spiral phase plate and the needle tip are both prepared by 3D printing, wherein the cross-sectional diameter of the end is between 100 nm and 10 μm. The vortex optical fiber probe, the preparation method, the scanning probe and the micro-nano manipulation system can realize optical and mechanical detection on a micro-particle sample through a probe prepared based on a general optical fiber and 3D printing, the probe preparation process is simple, the cost is low, and the universality is strong.
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