電磁波の動的可視化による次世代ミリ波・テラヘルツ波デバイスの研究

利用电磁波动态可视化研究下一代毫米波和太赫兹波器件

• 批准号: 16J05800
• 负责人: Nguyen Pham Hai Huy (2017)
• 金额: $ 1.02万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2016
• 资助国家: 日本
• 起止时间: 2016-04-22 至 2018-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16J05800/
• 关键词: Electro-optic probe,; THz device,; Terajet,; high sensitivity,; high resolution,; low invasiveness; Electro-optic sensor; THz wave visualization; signal-to-noise ratio; detectable bandwidth; Terajet; dielectric cube; subwavelength resolution /

In this year, three important achievements were obtained in my study.1) First, the capability or “value” of electro-optic (EO) measurement to characterize terahertz (THz) devices was clarified by demonstrating the characterization of a commercially available broad bandwidth spherical-wave-generating device from 30 GHz to 500 GHz. It was the first THz device characterization up to 500 GHz by visualizing the amplitude and phase distributions in free-space from the device using the EO probe. The sensitivity enhancement by exploiting an organic EO material (4-dimethylamino-N-metyl-4-stilbazolium tosylate, DAST) and the invasiveness reduction by introducing a Styrofoam holder, which has refractive index close to air, were two key techniques to obtain this result.2) Second, the characteristics of the “Terajet”, which is defined as the photonic nanojet in the THz region, were studied further. Particularly, the angular characteristics of the Terajet generated from a mesoscale dielectric cube were clarified. The experimental results indicated that the generated Terajet is identical to the incident beam and the subwavelength full width at half maximum of the Terajet is maintained within a wide angle of illumination.3) Third, two practical applications of the Terajet were proposed and demonstrated. One is to enhance the spatial resolution of THz imaging system. The other is to enhance the sensitivity of the EO probe.

在我的研究中，在今年获得了三项重要成就。1）首先，通过证明从30 GHz到500 GHz的30 GHz到500 GHz的商业可用的宽带球形波生成器设备，通过证明具有市值可用的宽带球形波生成器设备的表征来阐明电孔（EO）测量的能力或“价值”。这是使用EO探针从设备中自由空间中的放大器和相位分布来可视化的第一个THZ设备表征，最高为500 GHz。通过利用有机EO材料（4-二甲基氨基-N-甲基-4-甲基甲基甲酯，DAST），DAST）和降低侵入性来提高敏感性，并引入造型型苯丙萝场架，其折射率接近空气的折射率是两种关键技术，可以获得这两个关键技术。 THZ区域是部分研究的，阐明了从中尺度层次的立方体产生的TERAJET的角度特性。实验结果表明，生成的terajet与入射光束相同，并且在terajet的最大一半处的亚波长度保持在照明的广角。3）第三，提出并证明了TERAJET的两个实际应用。一种是增强THZ成像系统的空间分辨率。另一个是增强EO探针的灵敏度。

项目成果

Experimental characterization of terajet generated from dielectric cuboid under different illumination conditions

• DOI: 10.1109/gsmm.2017.7970306
• 发表时间: 2017-05
• 期刊: 2017 10th Global Symposium on Millimeter-Waves
• 作者: Hai Huy Nguyen Pham;S. Hisatake;T. Nagatsuma;I. Minin;O. Minin

Enhancement of spatial resolution of terahertz imaging systems based on terajet generation by dielectric cube

• DOI: 10.1063/1.4983114
• 发表时间: 2017-05-01
• 期刊: APL PHOTONICS
• 影响因子: 5.6
• 作者: Hai Huy Nguyen Pham;Hisatake, Shintaro;Minin, Igor Vladilenovich
• 通讯作者: Minin, Igor Vladilenovich

Electric-field visualization technique for evaluating radiation from automotive millimeter-wave radar

用于评估汽车毫米波雷达辐射的电场可视化技术

• 发表时间: 2017
• 作者: Koki Yamaguchi;Hikaru Nakajima;Hai Huy Nguyen Pham;Shintaro Hisatake;Tadao Nagatsuma;Hirohisa Uchida;Makoto Tojo;Yoichi Oikawa;and Kunio Miyaji
• 通讯作者: and Kunio Miyaji

Photonics for Millimeter-Wave and Terahertz Sensing and Measurement

用于毫米波和太赫兹传感和测量的光子学

• DOI: 10.1587/transele.e99.c.173
• 发表时间: 2016
• 期刊: IEICE Transactions on Electronics
• 影响因子: 0.5
• 作者: T. Nagatsuma S. Hisatake;and H. H. N. Pham
• 通讯作者: and H. H. N. Pham

Asymmetric phase anomaly of terajet generated from dielectric cube under oblique illumination

• DOI: 10.1063/1.4983640
• 发表时间: 2017-05-15
• 期刊: APPLIED PHYSICS LETTERS
• 影响因子: 4
• 作者: Hai Huy Nguyen Pham;Hisatake, Shintaro;Minin, Igor V.
• 通讯作者: Minin, Igor V.