| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| 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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