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A graphene array surface plasmon laser with real-time tunable emission wavelength

A graphene array, surface plasmon technology, applied in the field of optical communication, can solve the problem of loss of dynamic tuning

Inactive Publication Date: 2018-03-16
GUANGXI NORMAL UNIV
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  • Claims
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Problems solved by technology

Although the surface plasmon nanolaser reported above can achieve wavelength tuning by changing the level of the semiconductor gain medium, it loses the possibility of dynamic tuning due to the solid gain material used.

Method used

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  • A graphene array surface plasmon laser with real-time tunable emission wavelength

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Embodiment

[0022] refer to figure 1 , a graphene array surface plasmon laser with real-time tunable emission wavelength, including sequentially stacked SiO 2 The base layer 1, the graphene periodic strip array layer 2, the organic solvent layer 3 and the glass layer 4, the graphene periodic strip array layer 2 is provided with a fluid channel connected with the microfluidic device. The length and width of each layer are 800nm ​​and 600nm, SiO 2 The base layer 1 has a thickness of 100nm, the graphene periodic strip array layer 2 has a thickness of 30nm, the strip graphene period has a thickness of 20nm, the organic solvent layer 3 has a thickness of 30nm, and the glass layer 3 has a thickness of 150nm.

[0023] The graphene periodic strip array layer 2 is deposited on SiO 2 on base layer 1.

[0024] The organic solvent layer 3 is a dimethyl sulfoxide IR-140-DMSO mixed solution layer, and the organic solvent layer is sandwiched between the graphene periodic strip array layer 2 and the g...

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Abstract

The invention discloses a graphene array surface plasmon laser with real-time adjustable output wavelength, which is characterized in that it comprises sequentially stacked SiO2 base layer, graphene periodic strip array layer, organic solvent layer and glass layer, graphene periodic The strip array layer is provided with fluid channels connected with the microfluidic device. This kind of plasmonic laser uses liquid gain in the form of a fluid channel to achieve surface plasmon enhancement, which can not only enhance the photon localization effect and the propagation distance of SPPs waves, but also achieve effective refractive index changes by adjusting the concentration of organic solvents in real time, and then control the output laser. The laser wavelength can be dynamically tuned, and it can provide key devices for broadband communication systems, micro photonic circuits, optoelectronic integration and other fields.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a graphene array surface plasmon laser with real-time adjustable output wavelength. Background technique [0002] Surface plasmon polaritons (SPPs) are electromagnetic modes between light waves and transferable surface charges realized by changing the subwavelength structure of the metal surface, which can support surface plasmon waves transmitted at the interface between the metal and the medium, thereby Transmits light energy without being limited by the diffraction limit. Because of the unique properties of SPPs, it plays an important role in manipulating light energy at the nanoscale. [0003] In particular, Mark I Stockman, a professor of the Department of Physics and Astronomy at Georgia State University, proposed a surface plasmon laser (SPASER). The latest research of this research group introduces graphene nano-patch as a plasma cavity and quantum cascade ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/30H01S5/06
Inventor 朱君秦柳丽宋树祥傅得立
Owner GUANGXI NORMAL UNIV
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