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Echo wall mode organic special-shaped resonant cavity and preparation method and application thereof

A whispering gallery mode and resonant cavity technology, applied in the field of optical devices, can solve problems such as low Q value and small reflectivity, and achieve the effect of simple operation and easy operation

Active Publication Date: 2020-09-04
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The F-P resonator mainly uses photons to reflect back and forth between two parallel end faces to generate gain light. When the optical gain overcomes the limitation of the resonator, the gain light will emerge from the end face of the nanowire structure in the form of laser light. However, due to the relatively small reflectivity of its two endpoints, its Q value is relatively low
The WGM resonator uses closed and curved edges to achieve total reflection of photons, which makes it have a high Q value, but its shape is mostly circular so that the mode of radiation on the plane of the resonator is isotropic emission, which is difficult Make the light in the cavity output in a certain direction

Method used

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  • Echo wall mode organic special-shaped resonant cavity and preparation method and application thereof
  • Echo wall mode organic special-shaped resonant cavity and preparation method and application thereof
  • Echo wall mode organic special-shaped resonant cavity and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for preparing a whispering gallery mode organic special-shaped resonator, the preparation method comprising the steps of:

[0038] DPAVBi was dissolved in dichloromethane to obtain a 10 mmol / L DPAVBi solution;

[0039] Add 0.5mL toluene into the container, place a platform higher than the toluene liquid level in the container, and place a silicon chip on the platform, drop 20 μ LDPAVBi solution on the silicon chip, and clean the silicon chip with acetone, ethanol and desiccant before use. Ultrasonic cleaning with deionized water;

[0040] Cover the container with a lid so that the container is not completely sealed, and when the solvent evaporates, an organic special-shaped resonant cavity in whispering gallery mode is obtained.

[0041] The prepared DPAVBi special-shaped resonator was characterized and tested, and the results are as follows:

[0042] Depend on figure 2 (a) and (b), the size of the obtained assembly is relatively uniform, and the material h...

Embodiment 2

[0049] A method for preparing a whispering gallery mode organic special-shaped resonator, the preparation method comprising the steps of:

[0050] DPAVBi was dissolved in dichloromethane to obtain a 5 mmol / L DPAVBi solution;

[0051] Add 0.5mL toluene into the container, place a platform higher than the toluene liquid level in the container, and place a silicon chip on the platform, drop 20 μ LDPAVBi solution on the silicon chip, and clean the silicon chip with acetone, ethanol and desiccant before use. Ultrasonic cleaning with deionized water;

[0052] Cover the container with a lid so that the container is not completely sealed, and when the solvent evaporates, an organic special-shaped resonant cavity in whispering gallery mode is obtained.

[0053] The prepared DPAVBi special-shaped resonator was characterized and tested, and the results are as follows:

[0054] Depend on Figure 8 (a) The obtained assembly has smooth curved edges and linear vertex angles, and the struc...

Embodiment 3

[0059] A method for preparing a whispering gallery mode organic special-shaped resonator, the preparation method comprising the steps of:

[0060] DPAVBi was dissolved in methylene chloride to obtain a 2 mmol / L DPAVBi solution;

[0061] Add 0.5mL toluene into the container, place a platform higher than the toluene liquid level in the container, and place a silicon chip on the platform, drop 20 μ LDPAVBi solution on the silicon chip, and clean the silicon chip with acetone, ethanol and desiccant before use. Ultrasonic cleaning with deionized water;

[0062] Cover the container with a lid so that the container is not completely sealed, and when the solvent evaporates, an organic special-shaped resonant cavity in whispering gallery mode is obtained.

[0063] The prepared DPAVBi special-shaped resonator was characterized and tested, and the results are as follows:

[0064] Depend on Figure 12 It is found that the obtained assembly has smooth curved edges and linear vertex angl...

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Abstract

The invention relates to an echo wall mode organic special-shaped resonant cavity and a preparation method and application thereof, and belongs to the field of optical devices. The preparation methodcomprises the following steps of dissolving organic semiconductor molecules in an organic good solvent to obtain an organic semiconductor solution; adding a poor solvent and an organic semiconductor solution into a container, wherein the organic semiconductor solution is not in contact with the poor solvent and is located above the poor solvent; covering the container with a cover, so that the container is not completely sealed, and after the solvent volatilizes, the echo wall mode organic special-shaped resonant cavity is obtained. The preparation method is simple and easy to implement, the spindle-like resonant cavity with the perfect boundary and the ultra-smooth surface is obtained, the resonant cavity is good in crystallinity and is free of impurities and optical defects, the couplingoutput loss of light can be effectively reduced, and the purpose that the resonant cavity has a high-quality factor is achieved.

Description

technical field [0001] The invention relates to a whispering gallery mode organic special-shaped resonant cavity and a preparation method and application thereof, belonging to the field of optical devices. Background technique [0002] As a new type of light source, laser has been developed for a long time and is widely used because of its advantages of monochromaticity, good directionality and higher brightness. Although lasers have many advantages, with the development of society, people have higher requirements for the integration and size of optical devices. Therefore, the research of micro-nano lasers has become a current research hotspot. Among them, three elements need to be met in order to achieve laser emission, one is the excitation source, which provides the excitation energy required to form laser emission; the other is the gain medium, which provides the energy level structure system for forming laser; the third is the optical resonator, It is to provide a feed...

Claims

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Application Information

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IPC IPC(8): H01S3/06H01S3/082
CPCH01S3/0627H01S3/082
Inventor 谷建民袁一鸣李四横冯曼尹百鹏王德松
Owner YANSHAN UNIV
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