Surface plasmon infrared nano pulse laser having multi-resonance competition mechanism

Patent metadata

Field	Value
Publication number	US-10971895-B2
Application number	US-201816975398-A
Country	US
Kind code	B2
Filing date	May 28, 2018
Priority date	Mar 1, 2018
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

A surface plasmon infrared nano-pulse laser having a multi-resonance competition mechanism, consisting of the four parts of a surface plasmon nano-pin resonance chamber (1), a spacer layer (2), a gain medium (3), and a two-dimensional material layer (4). The surface plasmon nano-pin resonance chamber (1) consists of a metal nano rod (11) and one or more nano sheets (12) grown thereon, the surface plasmon nano-pin resonance chamber (1) and the gain medium (3) being isolated by the isolating layer (2), and the two-dimensional material layer (4) covering a surface of the surface plasmon nano-pulse laser; positive and negative electrodes (5) are located at two ends of the surface plasmon nano-pulse laser, and a layer of a two-dimensional material having a feature of saturatable absorption is introduced to a surface of the nano-pin resonance chamber.

First claim

What is claimed is:

1. A surface plasmon infrared nano pulse laser having a multi-resonance competition mechanism, comprising four parts: a surface plasmon nano-pin resonance chamber with a multi-resonance mechanism competition effect, a spacer layer, a gain medium, and a two-dimensional material layer; wherein the surface plasmon nano-pin resonance chamber comprises a metal nano rod and one or more nano sheets grown thereon, the surface plasmon nano-pin resonance chamber and the gain medium being isolated by the spacer layer, the two-dimensional material layer covering a surface of the surface plasmon infrared nano pulse laser; a positive electrode and a negative electrode located at two ends of the surface plasmon infrared nano pulse laser.

2. The surface plasmon infrared nano pulse laser having the multi-resonance competition mechanism according to claim 1 , wherein, materials of the metal nano rod and the nano sheets are both metal materials with a surface plasmonic characteristic, the metal nano rod has a length ranging from 20 nm to 30 microns, a diameter ranging from 10 nm to 200 nm; the one or more nano sheets having a surface plasmon resonance (SPR) effect and are comprised of a nanoparticle with one or more anisotropic morphologies.

3. The surface plasmon infrared nano pulse laser having the multi-resonance competition mechanism according to claim 2 , wherein the metal materials with the surface plasmonic characteristic is: gold, silver, copper, or aluminum; a material of the metal nano rod and a material of the nano sheets are the same or different.

4. The surface plasmon infrared nano pulse laser having the multi-resonance competition mechanism according to claim 2 , wherein a shape of the nanoparticle with the anisotropic morphology is a triangular plate, a tetrahedron, a hexagonal plate, or a decahedron.

5. The surface plasmon infrared nano pulse laser having the multi-resonance competition mechanism according to claim 1 , wherein the gain medium is a medium material with a gain amplification characteristic; and wherein the medium material with the gain amplification characteristic is a quantum dot, an organic dye, or a rare earth luminescent material.

6. The surface plasmon infrared nano pulse laser having the multi-resonance competition mechanism according to claim 1 , wherein the spacer layer is an oxide or a fluoride inorganic material.

7. The surface plasmon infrared nano pulse laser having the multi-resonance competition mechanism according to claim 6 , wherein the oxide or the fluoride inorganic material is SiO 2 , Al 2 O 3 , or MgF.

8. The surface plasmon infrared nano pulse laser having the multi-resonance competition mechanism according to claim 1 , wherein the two-dimensional material layer is a two-dimensional material having a property of saturable absorption.

9. The surface plasmon infrared nano pulse laser having the multi-resonance competition mechanism according to claim 1 , wherein a material of the positive electrode and the negative electrode is Pd or Ti.

Assignees

• Univ Southeast

Inventors

• Zhang Tong
• Shan Feng
• Zhang Xiaoyang
• Pang Xiaoyi

Classifications

• G02F2203/10

  plasmon · CPC title

• H01S5/1046 Primary

  Comprising interactions between photons and plasmons, e.g. by a corrugated surface · CPC title

• H01S5/1042

  Optical microcavities, e.g. cavity dimensions comparable to the wavelength · CPC title

• H01S5/041

  Optical pumping · CPC title

• G02B5/008

  Surface plasmon devices (diffractive gratings with a pitch less than or comparable to the wavelength G02B5/1809; surface plasmons in integrated optics G02B6/1226; optical analysis of materials by means of surface plasmons G01N21/553) · CPC title