Measurement of Terahertz radiation from plasma antenna

等离子体天线太赫兹辐射的测量

• 批准号: 23540571
• 负责人: YUGAMI Noboru
• 金额: $ 3.33万
• 依托单位: Utsunomiya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23540571/
• 关键词: テラヘルツ; レーザー; プラズマ; 電磁波; 高電圧; 電磁波発生

The plasma antenna forms by the ultra short laser pulse irradiation to the high-voltage applied electrodes in the gas. The current flows in the plasma and its rise time is expected to be same time scale of laserpulse. The emitted radiation frequency is estimated in the order of THz regime.In the experiments, we used nitrogen gas in the vacuum vessel, when laser pulse width is 120 fsec, we observed 0.08 THz radiation pulse in the frequency, moreover 0.3 THz radiation frequency was observed by using 30 fs laser pulse. The radiation frequency depends on the laser pulse width as expected by the theoretical model.

利用超短激光脉冲照射气体中的高压电极，形成等离子体天线。等离子体中流动的电流的上升时间与激光脉冲的时间尺度相同。在实验中，我们在真空容器中使用氮气，当激光脉冲宽度为120 fs时，我们观测到了0.08 THz的辐射脉冲，而当激光脉冲宽度为30 fs时，我们观测到了0.3 THz的辐射频率。正如理论模型所预期的那样，辐射频率取决于激光脉冲宽度。

项目成果

Frequency upshift via flash ionization phenomena using semiconductor plasma

使用半导体等离子体通过闪光电离现象实现频率上移

• 发表时间: 2011
• 作者: Akinori Nishida;Masahiro Nakata;Takeshi Higashiguchi;Noboru Yugami;Yasuhiko Sentoku;and Ryosuke Kodama
• 通讯作者: and Ryosuke Kodama

Microdischarge extreme ultraviolet source with alkali metal vapor for surface morphology application

用于表面形貌应用的碱金属蒸气微放电极紫外光源

• 发表时间: 2011
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: Takeshi Higashiguchi;Hiromitsu Terauchi;Takamitsu Otsuka;Mami Yamaguchi;Keisuke Kikuchi;Noboru Yugami;Toyohiko Y atagai;Wataru Sasaki;Rebekah D'Arcy ;Padraig Dunne;and Gerry O'Sullivan
• 通讯作者: and Gerry O'Sullivan

Experimental Observation of Frequency Up-Conversion via Flash Ionization Phenomena

通过闪速电离现象进行频率上转换的实验观察

• 作者: 塩満栄一;木野裕昌;有吉純也;有村拓也;迫田達也;馬場誠二;貴島純次;中島秀之;K. Nakamura and H. Sugai;Noboru Yugami and Takeshi Higashiguchi
• 通讯作者: Noboru Yugami and Takeshi Higashiguchi

A 6.x nm beyond EUV source as a future lithography source

超越 EUV 6.x nm 光源作为未来光刻光源

• 期刊: Proceedings of SPIE
• 作者: Takamitsu Otsuka;Bowen Li;Colm O'Gorman;Thomas Cummins;Hao Tan;Deirdre Kilbane;Takeshi Higashiguchi;Noboru Yugami;Weihua Jiang;Akira Endo;Padraig Dunne;and Gerard D. O'Sullivan
• 通讯作者: and Gerard D. O'Sullivan

A tapered parallel plate waveguide for frequency up-conversion of terahertz radiation.

• DOI: 10.1063/1.3697700
• 发表时间: 2012-04
• 期刊: The Review of scientific instruments
• 作者: A. Nishida;H. Kashiwazaki;S. Yoshida;T. Higashiguchi;N. Yugami;R. Kodama