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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 existing random lasers, the present invention provides a natural hyperbolic metamaterial Cu 2 Te Microdisk Random Laser

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

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preparation example Construction

[0049] Natural hyperbolic metamaterial Cu of the present invention 2 The preparation method of Te microdisk random laser, specifically comprises the following steps:

[0050] (1) Deposit and grow Cu on the growth substrate 2 Te micro disc;

[0051] Wherein, the growth substrate is a copper foam substrate or a common copper sheet. Moreover, deposition and growth of Cu on the growth substrate 2 Before the Te micron disc, the growth substrate must be pre-treated; the pre-treatment includes acetone ultrasonic cleaning, anhydrous ethanol ultrasonic cleaning and plasma surface cleaning at least one treatment method. Preferably, the plasma surface cleaning is by nitrogen gun cleaning.

[0052] In a preferred embodiment, the Cu is deposited and grown on the growth substrate by chemical vapor deposition. 2 Te microdisk.

[0053] (2) the Cu 2 Te microdisks were transferred to the substrate, the Cu 2 Deposit GaTe film on Te micro disk;

[0054] Wherein, in order to prevent conta...

Embodiment 1

[0060] The natural hyperbolic metamaterial Cu of the present embodiment 2 Te microdisk random laser is a two-dimensional material-assisted growth random laser device, which includes sapphire substrate, Cu 2 Te microdisk and GaTe layer film, on sapphire substrate, Cu 2 The overall structure of the Te micro disk and the GaTe film is covered with a flexible packaging protection layer.

[0061] Among them, the polydimethylsiloxane (PDMS) of the flexible packaging protective layer.

[0062] The natural hyperbolic metamaterial Cu 2 Fabrication of Te microdisk random lasers using chemical vapor deposition and radio frequency magnetron sputtering to prepare Cu 2 Te microdisk with GaTe thin film gain layer.

[0063] The specific preparation process is as follows:

[0064] (1) The foamed copper substrate after ultrasonic cleaning with absolute ethanol is fixed upside down on the quartz ark workpiece in the chemical vapor deposition tube furnace chamber, the quartz ark is placed wit...

Embodiment 2

[0078] The natural hyperbolic metamaterial Cu of the present embodiment 2 Te microdisk random laser is a two-dimensional material-assisted growth random laser device, which includes sapphire substrate, Cu 2 Te microdisk and GaTe layer film, on sapphire substrate, Cu 2 The overall structure of the Te micro disk and the GaTe film is covered with a flexible packaging protection layer.

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

[0080] The natural hyperbolic metamaterial Cu 2 Fabrication of Te microdisk random lasers using chemical vapor deposition and radio frequency magnetron sputtering to prepare Cu 2 Te microdisk with GaTe thin film gain layer.

[0081] The specific preparation process is as follows:

[0082] (1) Fix the foamed copper substrate after the ultrasonic treatment of absolute ethanol on the quartz ark workpiece in the chemical vapor deposition tube furnace chamber. The quartz ark is placed with 6 mg Te of the evap...

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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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