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A device for radiating terahertz waves from plasma

A plasma and connecting device technology, which is applied in the field of devices for ionizing terahertz waves, and can solve the problems of difficult modulation, complicated device manufacturing, and difficulty in realizing industrialization.

Active Publication Date: 2020-07-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the device can only emit monochromatic light at a specific wavelength, and each device can only generate terahertz waves of a specific frequency, which is difficult to modulate, and the device is complicated to manufacture and difficult to realize industrialization

Method used

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  • A device for radiating terahertz waves from plasma
  • A device for radiating terahertz waves from plasma
  • A device for radiating terahertz waves from plasma

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 5As shown, including high-voltage power supply, acupuncture needles, gas cylinders, barometers, quartz tubes, copper foil ground electrodes, sealants, capillaries, magnets, convex lenses and terahertz detectors. Acupuncture needles with a diameter of 0.3 mm are used as high-voltage electrodes and connected to high-voltage power sources to form a loop. Helium is passed into the quartz tube through the barometer, and the reading of the barometer is 0.008Mpa. Acupuncture needles are placed in the quartz tube, and the capillary is connected to the right end of the quartz tube through a sealant. The distance d between the right end of the acupuncture needle and the opening of the quartz tube 2 is 2mm. The quartz tube has an inner diameter of 0.35 mm and an outer diameter of 8 mm, and the capillary is a glass tube with an inner diameter of 10 μm and an outer diameter of 80 μm. Copper foil with a width of 3 mm is pasted on the outer wall of the quartz tube,...

Embodiment 2

[0033] Such as Figure 6 As shown, including high-voltage power supply, acupuncture needles, gas cylinders, barometers, quartz tubes, plexiglass tubes, magnets, capillaries, convex lenses and terahertz detectors. Acupuncture needles with a diameter of 0.25 mm are connected to a high-voltage power source to form a circuit. Helium is passed into the quartz tube through the barometer, and the reading of the barometer is 0.006Mpa. Acupuncture needles are placed in the quartz tube, and the capillary is connected to the right end of the quartz tube through a sealant. The distance d between the right end of the acupuncture needle and the opening of the quartz tube 2 is 2mm. The quartz tube has an inner diameter of 0.3 mm and an outer diameter of 6 mm, and the capillary is a glass tube with an inner diameter of 5 μm and an outer diameter of 100 μm. A plexiglass tube with a length of 10mm is connected to the right end of the quartz tube, the right end of the plexiglass tube is flus...

Embodiment 3

[0035] Such as Figure 7 Shown, including high-voltage power supply, gas cylinder, barometer, acupuncture needle, quartz tube, sealant, magnet, capillary, convex lens and terahertz detector. Acupuncture needles with a diameter of 0.3 mm are connected to a high-voltage power source to form a circuit. Helium is passed into the quartz tube through the barometer, and the reading of the barometer is 0.008Mpa. Acupuncture needles are placed in the quartz tube, and the capillary is connected to the right end of the quartz tube through a sealant. The distance d between the right end of the acupuncture needle and the opening of the quartz tube 2 is 2mm. The quartz tube has an inner diameter of 0.35 mm and an outer diameter of 8 mm, and the capillary is a glass tube with an inner diameter of 10 μm and an outer diameter of 80 μm. The high-voltage power supply is an AC power supply with an amplitude of 0-30kV and a frequency of 2kHz. When a voltage with an amplitude of 20kV is applie...

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Abstract

The invention discloses a plasma and terahertz wave radiation device which comprises a high voltage power supply, a high voltage electrode, an air feed system, a dielectric tube, a connecting device,a capillary and a magnet; the high voltage electrode is placed in the center of the dielectric tube and connected with the high voltage power supply, a work gas is input into the dielectric tube, theair supply system provides the work gas for discharging and measures the pressure intensity of the work gas, and the capillary is placed in a magnetic field generated by the magnet and is communicatedwith the connecting device via the capillary. When the voltage reaches the breakthrough voltage of the work gas in the capillary, micro plasmas of the atmospheric pressure are generated in the capillary, and terahertz waves are radiated. The problem that a present laser device with a terahertz wave source is large in size and high in cost is solved.

Description

technical field [0001] The invention belongs to the intersection field of gas discharge, plasma and terahertz, and in particular relates to a device for plasma radiating terahertz waves. Background technique [0002] Terahertz waves refer to electromagnetic waves with a frequency between 0.1THz-10THz (wavelength between 30μm-3mm), which is in the cross field of electronics and photonics, and has particularities different from other electromagnetic spectrums. Terahertz wave technology is one of the top ten revolutionary technologies in the future. Terahertz waves have the characteristics of low energy, high transmittance, high frequency, and short pulses (on the order of picoseconds), and have great application prospects in communications, electromagnetic weapons, medical imaging, nondestructive testing, and security inspections. [0003] The terahertz source is the cornerstone of the development of terahertz technology. Based on optical and electronic methods, scientists h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H1/30
CPCH05H1/30
Inventor 吴淑群武菲刘雪原刘畅董熙张潮海
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS