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Terahertz wave quasi-optics polaroid sheet and preparation method thereof

A technology of terahertz wave alignment and polarizer, which is applied in the direction of polarizing elements, waveguides, waveguide devices, etc., can solve the problems of marking irregularity and damage, periodic variation error Rowland ghost lines, etc., and achieve the effect of easy production

Inactive Publication Date: 2010-12-22
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of polarizer is that the periodic variation error of the grating marking pitch is likely to produce Roland ghost lines and irregularities and damage of the marking, and the scattered light is easy to produce

Method used

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  • Terahertz wave quasi-optics polaroid sheet and preparation method thereof
  • Terahertz wave quasi-optics polaroid sheet and preparation method thereof

Examples

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Effect test

Embodiment 1

[0019] Embodiment 1: microcontact printing method

[0020] Firstly, a dry and clean biaxially oriented polypropylene film (BOPP) was prepared for use. The PDMS prepolymer and curing agent were mixed and stirred at a mass ratio of 10:1, and the mixture was poured on a silicon template, left to stand for 2 hours until the small bubbles were completely removed, and then placed in an oven at 65°C for 1.5 hours to cure. After the cured PDMS was cooled to room temperature, it was peeled off from the silicon template to obtain an elastic stamp.

[0021] The microstructures on the surface of the stamp are complementary to the patterns on the silicon template and are equal in size. Use 1mL with a concentration of 10mmol·L -1 The ODT ethanol solution soaked the PDMS impression. Then, on a high-speed rotary machine at 3000r·min -1 Rotate at a high speed for 1min, place the impression lightly on the clean polypropylene film, gently press it with your hands for a few seconds, and then p...

Embodiment 2

[0022] Embodiment 2: Aerosol jet printing method

[0023] The preparation method of the terahertz wave quasi-optical polarizer of the present invention can also be described by the following method: on the polymethylpentene substrate, the printing method of aerosol spray printing is used to dissolve gold, silver, copper and other metals in volatile In organic solvents, such as ethanol solutions, metal inks are made. By adjusting the parameter settings of the aerosol inkjet printer, the size between the metal lines is adjusted between 30 microns and 3000 microns, and the metal ink with a diameter of ink droplets not greater than 15 microns is evenly printed on the polymethylpentene film. At a certain temperature, with the volatilization of the solvent, the metal wires will be combined with the polymethylpentene film, thereby obtaining a quasi-optical polarizer in the terahertz band.

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Abstract

The invention discloses a terahertz wave quasi-optics polaroid sheet and a preparation method thereof. The terahertz wave quasi-optics polaroid sheet comprises a metal wire grating structure and a polymer substrate. The manufacturing method of the terahertz wave quasi-optics polaroid sheet comprises the step of printing metal on the clean and dry polymer substrate to manufacture the polaroid sheet with the wire grating structure through an aerosol spray printing or micro-contact printing method, wherein the metal comprises one of aluminum, gold, silver and copper, and materials of the polymer substrate are selected from a terahertz wave band high-permeability thin polymer film. The invention can realize the manufacturing method of the terahertz wave quasi-optics polaroid sheet which has low cost, high accuracy and more specialized application by utilizing an electronic printing technology.

Description

technical field [0001] The invention relates to a polarizer suitable for a wide-band terahertz band and a manufacturing method thereof. The polarizer is manufactured by electronic printing technology, and large-scale and low-cost production can be realized. Background technique [0002] Terahertz (THz) waves refer to electromagnetic waves with a frequency in the range of 0.1-10 THz (wavelength 30 μm-3000 μm). It is located between microwave and infrared light on the spectrum diagram, so it occupies a very special position in the electromagnetic spectrum. For many years, due to the lack of practical THz wave generation methods and detection methods, people know little about the characteristics of the THz wave band, so that the application and development of THz wave science and technology have been greatly restricted, and it has become a comprehensive study in the electromagnetic spectrum. The last frequency window in the electromagnetic spectrum is known as the "THz gap" in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30H01P3/20H01P11/00
Inventor 蒋春萍马仙梅王亦
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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