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Liquid laser with adjustable output wavelength, preparation method and application thereof

A liquid and laser technology, which is applied to the parts of liquid lasers, lasers, laser parts, etc., can solve the problems of easy damage, complicated operation, damage, etc., and achieve the effect of great application potential, simple operation and low cost

Active Publication Date: 2020-09-15
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing liquid laser output is achieved by using a cross-flow hemispherical cavity as a resonant cavity, but the disadvantages are complex structure, difficult operation, and high cost
There is also a method of using polymer photonic crystals to adjust the laser output wavelength. The method is to use the stable polymer photonic crystal gel film of ionic liquid to adjust the laser output wavelength. The disadvantage is that the polymer photonic crystal gel film is pumped by the outside. Pu Yuan's energy will be damaged
That is, the problems existing in the existing laser technology are: the use of an external resonator makes the entire operation complicated, difficult to control, and high cost; the use of polymer materials does not have a long life and is easily damaged

Method used

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  • Liquid laser with adjustable output wavelength, preparation method and application thereof
  • Liquid laser with adjustable output wavelength, preparation method and application thereof
  • Liquid laser with adjustable output wavelength, preparation method and application thereof

Examples

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preparation example Construction

[0040] The preparation method of the present invention will be further described in detail in conjunction with specific examples below. It should be understood that the following examples are only for illustrating and explaining the present invention, and should not be construed as limiting the protection scope of the present invention. All technologies realized based on the above contents of the present invention are covered within the scope of protection intended by the present invention.

[0041] The experimental methods used in the following examples are conventional methods unless otherwise specified; the reagents and materials used in the following examples can be obtained from commercial sources unless otherwise specified.

preparation example 1

[0043] Add 10mmol of polyethylene glycol, 1.1mL of water, and 5mmol of ferric chloride into 15mL of ethylene glycol, and stir for 30min to form yellow transparent solution A. Add 12mmol of sodium acetate into 20mL of diethylene glycol and stir for 30min to form a colorless and transparent solution B. Pour solution B into solution A to form solution C, heat and stir, set the temperature at 75°C, and stir for 90 minutes. Finally, the obtained solution was poured into a reaction kettle, put into an oven at 200° C., and reacted for 5 hours. Cool to room temperature, wash several times with ethanol and water to obtain monodisperse ferric oxide nanoparticles, and the scanning electron micrograph is figure 1 .

preparation example 2

[0045] 3 g of polyvinylpyrrolidone was dissolved in 60 mL of water, and then 1 mg of the monodisperse iron ferric oxide nanoparticles prepared in Preparation Example 1 was added into the above solution, and mechanically stirred for 18 hours. The final product was washed several times with ethanol and water to obtain monodisperse ferric oxide nanoparticles coated with polyvinylpyrrolidone, denoted as Fe 3 o 4 @PVP magnetic particles, particle size is 150nm, transmission electron microscope photo is figure 1 illustration in .

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Abstract

The invention provides liquid laser with adjustable output wavelength, a preparation method and application thereof. According to the invention, a dye and a magnetic response photonic crystal are simply mixed by utilizing the band edge enhancement effect of the magnetic response photonic crystal, so that the liquid laser provided by the invention is obtained; the method provided by the invention has the advantages of simplicity, feasibility, low cost, remote controllability, quick response and the like, and has the advantages of simplicity in operation, low cost, repeated use, remote control,quick response and the like in the aspect of realizing adjustment of the output wavelength of the liquid laser; and the liquid laser with the adjustable output wavelength has great application potential in the aspects of optical communication, sensors and biology.

Description

technical field [0001] The invention belongs to the field of liquid lasers, in particular to a liquid laser with adjustable output wavelength and its preparation method and application. Background technique [0002] Laser has high intensity, directivity and monochromaticity, and has important applications in industrial production and daily life. Previous studies have reported lasers with different gain media, different resonator structures and different pump sources. Liquid lasers have attracted much attention due to their advantages of solving thermal effects and low cost. The first liquid laser was reported in 1963. A few years later, liquid lasers were divided into two types: inorganic solution lasers (or called rare earth metal ion solution lasers) and organic solution lasers (or called dye lasers). [0003] At present, there is a liquid laser output by using a cross-flow hemispherical cavity as a resonant cavity, but the disadvantages are complex structure, difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/02H01S3/20H01S3/16
CPCH01S3/022H01S3/163H01S3/20
Inventor 杨国强李莹
Owner INST OF CHEM CHINESE ACAD OF SCI
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