Observation and application of novel plasma phenomena induced in state of negative refractive index

负折射率态等离子体新现象的观察与应用

• 批准号: 22340171
• 负责人: SAKAI Osamu
• 金额: $ 10.9万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22340171/
• 关键词: プラズマ; メタマテリアル; 負屈折率; 直列共振; 高電子密度

We applied metamaterials, whose concepts and functions have been extensively explored for these years, to high-density gas-discharge plasma generation. Negative-permeability spaces were designed and achieved by metamaterial structures, and injection of microwaves at several hundreds of watts into these spaces led to generation of high-density plasmas with negative permittivity, which was confirmed by plasma diagnostics. States with simultaneous negative permittivity and permeability led to dynamic generation of negative-refractive-index states, and generation processes were in strong nonlinear systems. This study allows us to propose novel plasma sources and to verify new techniques of nonlinear metamaterials for industrial activities.

我们将超材料应用于高密度气体放电等离子体产生，超材料的概念和功能近年来已被广泛探索。负磁导率空间是通过超材料结构设计和实现的，数百瓦的微波注入这些空间导致产生具有负介电常数的高密度等离子体，这被等离子体诊断证实。同时具有负介电常数和负磁导率的态导致了负折射率态的动态产生，且产生过程是在强非线性系统中进行的。这项研究使我们能够提出新的等离子体源，并验证工业活动的非线性超材料的新技术。

项目成果

Absorption spectroscopy using interference between optical frequency comb and single-wavelength laser

• DOI: 10.1063/1.4742136
• 发表时间: 2012-07
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: K. Urabe;O. Sakai

Wave Propagation

• DOI: 10.1201/9781315219677-66
• 发表时间: 2018-12
• 期刊: The Electrical Engineering Handbook - Six Volume Set

"Propagation of electromagnetic waves in and around plasmas," in Wave Propagation

“电磁波在等离子体内部和周围的传播”，《波传播》

• 发表时间: 2011
• 作者: Osamu Sakai;Intech (Rijeka)
• 通讯作者: Intech (Rijeka)

Tunable and nonlinear metamaterials activated by gas-discharge plasmas

由气体放电等离子体激活的可调谐非线性超材料

• 发表时间: 2012
• 作者: Arai T.;Yoshitake M.;Tomiyama T.;Niihara T.;Yokoyama T.;Kaiden H.;Misawa K.;Irving A.J.;石井貴之;平尾直久;K. Sasaki;O. Sakai
• 通讯作者: O. Sakai

Transition to negative refractive index in plasma metamaterial with negative permeability

具有负磁导率的等离子体超材料向负折射率的转变

• 发表时间: 2012
• 作者: 遊佐 斉;平尾直久;大石泰生;森 嘉久;瀬戸雄介;O. Sakai Y. Nakamura and S. Iio
• 通讯作者: O. Sakai Y. Nakamura and S. Iio