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A device for generating Cerenkov radiation by surface plasmons

A surface plasmon and polariton technology, applied in the field of visible light Cherenkov radiation system, can solve problems such as difficulty in THz radiation

Inactive Publication Date: 2019-05-14
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Description
  • Claims
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Problems solved by technology

[0002] The team led by academician Liu Shenggang found that it is difficult to achieve THz radiation with a certain power and frequency by simply using electronics or photonics in the exploration and research of terahertz (THz) radiation sources.

Method used

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  • A device for generating Cerenkov radiation by surface plasmons
  • A device for generating Cerenkov radiation by surface plasmons
  • A device for generating Cerenkov radiation by surface plasmons

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Embodiment Construction

[0024] In order to further understand the content of the invention, features and effects of the present invention, the specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and Examples:

[0025] A device for generating Cerenkov radiation by surface plasmons, comprising: an electron emission system, an electron reception system, a vacuum chamber 1, a sample holder system, a beam size testing system, an electronically controlled displacement system, and a spectrometer.

[0026] The front and rear walls of the vacuum chamber are provided with an electron emission system interface and an electron receiving system interface, which are respectively connected to the electron emission system and the electron receiving system through flanges; The system flange 2 is connected to the electron beam testing system; the lower wall is provided with a spectrometer interface, one end of the optical fiber 6 is inser...

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Abstract

The invention discloses a device for generating Cerenkov radiation by surface plasmons, belonging to the field of generation and detection of electromagnetic wave radiation. Specifically, it is a device that uses free electron injection to excite the sample to generate surface plasmons and converts the medium into Cerenkov radiation in the visible light band, including: electron emission system, electron reception system, vacuum chamber, sample holder system, beam Flow size test system, electronically controlled displacement control system, spectrometer system, vacuum pumping system. The device enables the generation and detection of Cerenkov radiation by a combination of electronics and photonics.

Description

technical field [0001] The invention belongs to the field of generation and detection of electromagnetic wave radiation, in particular to a system for generating surface plasmon polaritons by means of free electron injection excitation and transforming them into visible light Cerenkov radiation from a medium. technical background [0002] The team led by academician Liu Shenggang found that it is difficult to achieve THz radiation with a certain power and frequency by simply using electronics or photonics in the exploration and research of terahertz (THz) radiation sources. They innovatively proposed a new idea - using Surface Polaritons (Surface Polaritons) to combine electronics and photonics to generate terahertz radiation, and achieved a series of important results. In October 2012, an important article titled "Surface Polariton Cherenkov Light Radiation Source" was published on PRL (Physical Review Letters) Volume 109, Issue 15. This article proposed a different optical...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/64G01N27/66
CPCG01N27/64G01N27/66
Inventor 胡旻吴振华冯晓冬武江王琦富张平刘盛纲
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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