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Structure for generating multiple surface lattice resonance and application thereof

A lattice and multiple technology, applied in the structure, optics, instruments and other directions of the active area, can solve the problem of not being able to suppress the radiation loss of the system at the same time in multiple bands, and achieve the effect of suppressing the radiation loss of the system

Active Publication Date: 2019-11-05
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, a single surface lattice resonance can only regulate the spectrum in a single band, and cannot simultaneously suppress the radiation loss of the system in multiple bands, so that simultaneous modulation of multiple bands cannot be achieved.

Method used

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  • Structure for generating multiple surface lattice resonance and application thereof
  • Structure for generating multiple surface lattice resonance and application thereof
  • Structure for generating multiple surface lattice resonance and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A structure generating multiple surface lattice resonances from a gold nanodisk trimer C 2V Molecules are arranged in an orderly manner, such as figure 2 As shown, gold nanodisk trimer C 2V The molecule is composed of three gold nanodisks with the same thickness and different diameters. Among them, the diameters of the two small gold nanodisks are equal, the radius of the small gold nanodisk is r=80nm, the radius of the large gold nanodisk is R=150nm, s=240nm, g= 290nm, the thickness of both large and small gold nanodisks is h=50nm; figure 1 As shown, the above-mentioned array structure is etched on a quartz-PMMA (polymethyl methacrylate) substrate by ion / electron etching method, and a multi-mode surface plasmon laser chip is produced.

[0026] In order to detect the performance of the above-mentioned plasmonic laser chip, through the electron beam etching experiment, the prepared sample is immersed in the oil that matches the set refractive index for measurement, an...

Embodiment 2

[0028] A structure generating multiple surface lattice resonances from gold nanodisk tetramer C 2V Molecules are arranged in an orderly manner, such as Figure 5 As shown, gold nanodisk tetramer C 2V The molecule is composed of four gold nanodisks, in which two small gold nanodisks have a radius of r=70nm, and two large gold nanodisks have a radius of r=90nm, s 1 =170nm,s 2 =240nm,s 3 =240nm, the thickness of the large and small gold nanodisks is h=50nm; if Figure 4 As shown, the above array structure is etched on the quartz-PMMA substrate by ion / electron etching method to make a multi-mode surface plasmon laser chip;

[0029] Such as Figure 6 As shown, electron beam etching experiments show that when the polarization direction of the incident field is in the x direction, the period P in the direction perpendicular to the polarization direction of the incident field is maintained y is 750nm, changing the period P in the polarization direction parallel to the incident f...

Embodiment 3

[0031] A structure generating multiple surface lattice resonances from a gold nanodisk trimer D 3h Molecules are arranged in an orderly array structure, trimer D 3h The molecular point group is composed of three gold nanodisks of the same size. The radius of the gold nanodisk is set to r=80nm, the distance between the center of the gold nanodisk is s=175nm, and the thickness of the gold nanodisk is h=50nm. The above array structure is etched by ion / electronic method etched on a quartz-PMMA substrate, such as Figure 7 As shown, the multi-mode surface plasmon laser chip is manufactured, the effect is the same as that of embodiment 1, and multiple surface lattice resonance can also be realized.

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Abstract

The invention discloses a structure for generating multiple surface lattice resonance and application thereof, and belongs to the technical field of micro-nano photonic devices. The structure comprises a base on which plasmon molecules are arranged, the plasmon molecules are arranged in sequence to form a display structure, and the plasmon molecules are a polymer composed of a nano gold or nano silver unit structure. The plasmon molecular array structure can generate multiple surface lattice resonance, multiple surface lattice resonance can be well motivated by means of a surface plasmon laserchip made through the structure, system radiation loss can be inhibited at multiple wave bands, the wave bands are modulated, nanometer laser of multiple wave bands is emitted, and the structure hasgreat significance on development of information integration.

Description

technical field [0001] The invention belongs to the technical field of micro-nano photonic devices, and in particular relates to a structure for generating multiple surface lattice resonances and an application thereof. Background technique [0002] Nano-laser is the frontier field developed by the combination of traditional semiconductor laser and micro-nano photonics, which is of great significance to the design of micro-nano photonic devices. At the same time, limited by the "three-dimensional optical diffraction limit", the development of integration and miniaturization of nano-lasers has been greatly challenged, but surface plasmon lasers can overcome the diffraction limit and limit light to sub-wavelength regions. At present, the surface plasmon laser system has a large radiation loss, which leads to a decrease in the quality factor and a weakening of the local field strength. [0003] Surface lattice resonance is a resonance mode excited by the coupling excitation of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/00H01S5/30
CPCG02B5/008H01S5/30
Inventor 刘绍鼎刘杰岳鹏董红霞胡红刚耿伟贾卓楠刘钧妍栗正华
Owner TAIYUAN UNIV OF TECH
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