Device for measuring microwave power based on nonlinear quantum coherent effect of gold nanospheres

A technology of gold nanospheres and quantum coherence, applied in measuring devices, instruments, fluorescence/phosphorescence, etc., can solve problems such as difficult integration and low spatial resolution

Active Publication Date: 2019-10-08
SHANXI UNIV
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: how to solve the problem that the current microwave power measurement device has a low spatial resolution and is difficult to integrate

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  • Device for measuring microwave power based on nonlinear quantum coherent effect of gold nanospheres
  • Device for measuring microwave power based on nonlinear quantum coherent effect of gold nanospheres
  • Device for measuring microwave power based on nonlinear quantum coherent effect of gold nanospheres

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Embodiment Construction

[0022] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0023] A microwave power measurement device based on the nonlinear quantum coherence effect of gold nanospheres, such as figure 2As shown, it includes a femtosecond laser 1; the outgoing femtosecond laser is incident on the beam splitting prism 2; the transmitted light after being split by the beam splitting prism 2 is incident on the fixed first reflector (fixed mirror) 4 through the 1 / 4 wave plate 3 ; The laser reflected by the fixed mirror 4 returns to the beam splitting prism 2 through the 1 / 4 wave plate 3; the reflected light after the beam splitting by the beam splitting prism 2 is incident on the movable second mirror (moving mirror) 5, and the moving mirror 5 is fixed On the one-dimensional nano-displacement stage 6; the laser reflected by the moving mirror 5 returns to the beam splitting prism 2; the laser beam reflected by the fixed mirror ...

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Abstract

The invention relates to a device for measuring microwave power based on nonlinear quantum coherent effect of gold nanospheres, and relates to the fields of microwave power measurement technology andmetal nanometer materials. The device comprises a femto second laser device (1), a light splitting prism (2) positioned in an emitting light path of the femto second laser device (1), and a 1 / 4 waveplate (3), a position fixed first reflector (4), and a second reflector, the 1 / 4 waveplate (3) and the position fixed first reflector (4) are positioned in the transmitting light path of the light splitting prism (2) sequentially, the second reflector (5) is positioned in the reflecting light path of the light splitting prism (2) and one a one-dimensional nanometer displacement platform (6), and theone-dimensional nanometer displacement platform (6) moves forwardly or backwardly in parallel with the reflecting light path of the light splitting prism (2). The power is deducted via double-photonfluorescence generated from the gold nanospheres excited by femto second laser, and the spatial resolution of the femto second laser after being focused by an object lens can reach the micrometer magnitude.

Description

technical field [0001] The invention relates to microwave power measurement technology and the field of metal nanometer materials. Background technique [0002] Microwaves are electromagnetic waves with frequencies in the range of 300 MHz to 300 GHz. Any object with a temperature above absolute zero produces microwave radiation. By using the microwave detector to receive the microwave radiation emitted by the object, the attributes of the target object can be identified and judged without contact. At present, microwaves have been widely used in radar, communication, medicine, industrial and agricultural production, etc., such as fire detection, ice thickness measurement, water pollution monitoring, remote vital sign monitoring, etc. At present, there are mainly two methods for measuring microwave power, one is based on dipole antenna measurement method, and the other is based on atomic radio frequency microwave measurement method. Based on the dipole antenna measurement m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64G01N21/01
CPCG01N21/01G01N21/6402G01N2021/0112
Inventor 秦成兵李耀陈瑞云张国锋高岩肖连团贾锁堂
Owner SHANXI UNIV
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