Natural hyperbolic metamaterial Cu2Te micron disc random laser and preparation method and application thereof

A random laser, a natural technology, applied in the field of random laser, can solve the problems of high threshold and low power of random laser, and achieve the effect of shortening the life of self-emission transition, high gain and high yield.

Pending Publication Date: 2021-09-17
HUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of high threshold and low power of random laser due to metal energy loss in exi

Method used

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  • Natural hyperbolic metamaterial Cu2Te micron disc random laser and preparation method and application thereof
  • Natural hyperbolic metamaterial Cu2Te micron disc random laser and preparation method and application thereof
  • Natural hyperbolic metamaterial Cu2Te micron disc random laser and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] Natural hyperbolic metamaterial present invention Cu 2 Preparation Te microns disc random lasers, includes the following steps:

[0050] (1) Deposition growth in growth substrate Cu 2 Ti micron disk;

[0051] Wherein the growth substrate is a foam or a copper substrate ordinary copper. Further, the growth in the growth substrate is deposited Cu 2 Te disc before microns, the growth substrate to be pretreated; treatment comprising acetone ultrasonic cleaning, ultrasonic cleaning of anhydrous ethanol, and more than one plasma treatment of the surface cleaning. Preferably, the plasma surface cleaning gun to purge with nitrogen.

[0052] In a preferred embodiment, a chemical vapor deposition deposited grown on the growth substrate of the Cu 2 Te disc microns.

[0053] (2) Will the Cu 2 TE micron disks are transferred to the substrate, in the CU 2 Sedimentary Gate film on TE micron disk;

[0054] Wherein, in order to prevent contamination of the interface, the Cu 2 Te microns was...

Example Embodiment

[0059] Example 1

[0060] Natural hyperbolic metamaterial present embodiment Cu 2 Te disc random micron laser-assisted growth of a random two-dimensional material laser device, the laser device by the random sequence to the substrate include sapphire, Cu 2 Te disc and GaTe micron film layer, sapphire substrate, Cu 2 The protective layer is covered with a flexible encapsulating the overall structure and Te microns disc GaTe layer film.

[0061] Polydimethylsiloxanes wherein flexible encapsulating protective layer (PDMS).

[0062] The natural hyperbolic metamaterial Cu 2 Te disc random Preparation micron laser, chemical vapor deposition and Cu were prepared by RF Magnetron Sputtering 2 Te thin-film gain micron plate and GaTe layer.

[0063] The specific preparation process is as follows:

[0064] (1) The copper foam substrates after ultrasonic cleaning ethanol fixed upside down on Ark workpiece quartz tube furnace a chemical vapor deposition chamber, an evaporation source disposed q...

Example Embodiment

[0077] Example 2

[0078] Natural hyperbolic metamaterial present embodiment Cu 2 Te disc random micron laser-assisted growth of a random two-dimensional material laser device, the laser device by the random sequence to the substrate include sapphire, Cu 2 Te disc and GaTe micron film layer, sapphire substrate, Cu 2 The protective layer is covered with a flexible encapsulating the overall structure and Te microns disc GaTe layer film.

[0079] Wherein the flexible packaging material of the protective layer is an epoxy resin.

[0080] The natural hyperbolic metamaterial Cu 2 Te disc random Preparation micron laser, chemical vapor deposition and Cu were prepared by RF Magnetron Sputtering 2 Te thin-film gain micron plate and GaTe layer.

[0081] The specific preparation process is as follows:

[0082] (1) the copper substrate after the foam absolute ethanol sonicated fixed upside down on Ark workpiece quartz tube furnace a chemical vapor deposition chamber, placing quartz Ark 6mg of...

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Abstract

The invention discloses a natural hyperbolic metamaterial Cu2Te micron disc random laser and a preparation method and application thereof. According to the random laser, the Cu2Te micron disc is used as a semiconductor dielectric material with HMM characteristics, GaTe is used as a gain medium, high gain is provided for the random laser, stable formation of a random laser resonator and scattering of random laser are improved, and the random laser can obtain stable random laser with a high Q value and a low threshold value. According to the preparation method, the Cu2Te micron disc is prepared in a chemical vapor deposition mode, the GaTe gain medium is deposited in a magnetron sputtering or chemical vapor deposition mode, efficient manufacturing of the natural hyperbolic metamaterial Cu2Te micron disc random laser is achieved, and the yield is high. The random laser can obtain stable random laser with a high Q value and a low threshold value, can be used in an LED light-emitting module and a laser imaging display photoelectric device, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of random laser technology, in particular to a natural hyperbolic metamaterial Cu 2 Te microdisk random laser and its preparation method and application. Background technique [0002] As a new type of laser, the resonator of a random laser is random, or does not have a resonant cavity. It uses a random gain medium to multiple-scatter light waves to form laser light, which has a special luminescence mechanism and luminescence characteristics. The current random lasers are mainly periodic structures of metal-dielectric materials, which can obtain random lasers with high Q value and low threshold. [0003] However, although the hyperbolic metamaterial (HMM) based on the periodic structure of metal-dielectric materials can obtain random lasing with high Q value and low threshold, due to the energy loss of the metal, the self-emission of photons of the dielectric material The low transition lifetime and low gain to rando...

Claims

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Application Information

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IPC IPC(8): H01S3/06H01S3/08H01S3/16
CPCH01S3/06H01S3/08H01S3/16
Inventor 李求果龚伟平梅海娟赵振廷
Owner HUIZHOU UNIV
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