A femtosecond laser two-photon processing device

A processing device, femtosecond laser technology, applied in optics, optical components, instruments, etc., can solve problems such as inability to apply commercial production, waste, complex and time-consuming production processes, etc., to achieve high practicability, improve efficiency, and spatial structure simple effect

Active Publication Date: 2021-11-16
SHANGHAI JIAO TONG UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has other problems such as complex and time-consuming production process, waste phenomenon caused by refilling liquid crystal, etc., and cannot be applied to large-scale commercial production.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A femtosecond laser two-photon processing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] The purpose of the present invention is to provide a femtosecond laser two-photon processing device, which can effectively process a three-dimensional helical chiral structure and form a twisted structure liquid crystal template with a periodic structure, thereby improving the efficiency and efficiency of the processing process of the twisted structure liquid crystal template. practicality.

[0044] In order to make the above objects, features and advan...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a femtosecond laser two-photon processing device, which is used for processing and preparing a twisted structure liquid crystal template with a photosensitive material as a workpiece, and a spatial light modulator loads a three-dimensional helical structure calculation hologram; the half-wave plate is arranged on the femtosecond laser On the outgoing light path of the half-wave plate, the diaphragm is set on the outgoing light path of the half-wave plate, the prism is set on the outgoing light path of the diaphragm, the beam expander system is set on the outgoing light path of the prism, and the reflector is set on the outgoing light path of the beam expander system. The spatial light modulator is set on the outgoing light path of the mirror, the second half-wave plate is set on the outgoing light path of the spatial light modulator, the linear optical processing system is set on the outgoing light path of the second half-wave plate, and the microscope system is set on the linear light path. On the exit light path of the optical processing system, the piezoelectric stage is arranged on the exit light path of the microscope system, and the photosensitive material is placed on the piezoelectric stage. The invention has simple spatial structure, high practicability, and improves the efficiency of preparing twisted structure liquid crystal template.

Description

technical field [0001] The invention relates to the field of twisted structure liquid crystal preparation, in particular to a femtosecond laser two-photon processing device. Background technique [0002] Twisted liquid crystals include blue phase liquid crystals, spherical phase liquid crystals and cholesteric phase liquid crystals. Blue-phase liquid crystals have sub-millisecond response time, no alignment treatment, optical isotropy without an external electric field, and a periodic three-dimensional helical structure in the visible light band. Spheroidal phase liquid crystals consist of three-dimensional twisted structures with defects in between. Spherical phase liquid crystals have the advantages of fast response speed, no need for alignment and wide viewing angle. [0003] Especially in the field of phase modulation and photonics, spherical phase liquid crystals play an irreplaceable role. Since the spherical phase liquid crystal and the blue phase liquid crystal ha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/09
CPCG02B27/09
Inventor 陆建钢张鸿州
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap