2017 Fiscal Year Final Research Report
Generation of Intense Terahertz Radiation from DARC by using Plasma Filament
Project/Area Number |
15K05361
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Plasma science
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Research Institution | Utsunomiya University |
Principal Investigator |
Yugami Noboru 宇都宮大学, 工学(系)研究科(研究院), 教授 (60220521)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Keywords | テラヘルツ / レーザー / プラズマ |
Outline of Final Research Achievements |
The operation of the DC-to-AC radiation converter (DARC) in the sub-THz region is confirmed. A relativistic ionization front which is created by a loosely focused of Ti:sapphire laser pulse propagating through a capacitor array of period d = 0.2 cm with a gas pressure between 1 and 200 Pa. The maximum frequency of the generated emission is determined to be in the range of 0.1 to 0.3 THz by using several diodes.; The maximum frequency range observed is up to Y band (0.22-0.33THz), which is the highest frequency reported using the DARC with gas (to our knowledge). Theoretically, higher frequency can also be obtained with higher electron density. The maximum signal voltage as a function of the applied voltage. The maximum signal voltages increase with the increasing applied voltage.
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Free Research Field |
プラズマ理工学
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