Dynamic Plasma/Metal/Dielectric Crystals as mm-wave to Thz Communications and Sensing Devices, and Testing of Drude Model
动态等离子体/金属/电介质晶体作为毫米波到太赫兹通信和传感设备,以及 Drude 模型的测试
基本信息
- 批准号:2223929
- 负责人:
- 金额:$ 51万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-08-15 至 2025-07-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Future communications networks, such as those connecting cell phones and computers, must inexorably move to higher frequencies because of unrelenting demand for bandwidth. Several countries worldwide are presently developing communications systems operating above 100 GHz but few of the necessary components, such as beamsplitters, attenuators and phase shifters, exist at present. This proposal is motivated by the recent development at the University of Illinois of artificial 2D and 3D “crystals” comprising periodic arrays of microplasmas, dielectrics, and metal microcolumns. Because this new form of artificial (i.e., not found in nature), electromagnetically-active materials include microcolumns of low temperature plasma (similar to that in neon signs), the response of the crystal to an incoming electromagnetic field can be “tuned” at electronic speeds, in contrast to previous communications components whose properties are fixed. The research proposed for this NSF program will focus on the fundamental behavior of these dynamic crystals and their application to communications, sensing, and detection over the ~50 GHz – 2 THz spectral region. In addition to enabling new communications systems, it is anticipated that tunable plasma photonic crystals will yield new, sensitive detectors of environmental pollutants and will be capable of temporarily storing electromagnetic energy in the microwave, mm-wave, and sub-mm wave spectral regions. This NSF ECCS proposal, motivated by the recent development at the University of Illinois of artificial 2D and 3D crystals comprising periodic arrays of microplasmas, dielectrics, and metal microcolumns, focusses on the fundamental behavior of these dynamic crystals and their application to communications, sensing, and detection over the ~50 GHz – 2 THz spectral region. Because the microplasma electron density can be readily altered by orders of magnitude (and at electronic speeds), the electromagnetic response of such plasma photonic crystals (PPCs) can be manipulated so as to shift, strengthen, or eliminate transmission or attenuation modes (resonances) of the static (i.e., no plasma) crystal. It has been demonstrated, for example, that the Q of static crystal resonances in the 130-150 GHz region can be increased by a factor of 5 or more, and blue-shifted by 1 GHz, by generating low temperature plasma selectively within a metal/dielectric crystal. Furthermore, small cubic crystals having a simple, internal waveguide/coupled resonator structure exhibit (in preliminary data) mode-splitting and complete mode suppression near 139 GHz because the microplasma arrays control the degree of coupling between the waveguide and the resonator. This technology has not existed previously but it appears to have considerable promise for devices such as dynamic mm-wave and THz resonators, filters, mirrors, resonators, phase shifters, interferometers, and other devices in this spectral region. In particular, the dependence of the dielectric permittivity of low temperature plasma on electron density and background gas pressure allows one to manipulate the response of a PPC of a given structure. The time-dependent ability of such crystals to store (“trap”), reflect, and polarize radiation in the mm- and sub-mm wave regions will also be explored. Not only are these electromagnetically-active, artificial materials of interest for 100-500 GHz communications systems, but they are also of considerable value for fundamental science. Specifically, PPCs are ideally-suited as a testbed to rigorously test Drude’s formalism for the refractive index of low temperature plasma, particularly at the electron densities and atmospheric background pressures typical of microplasmas. This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteriaThis award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
由于对带宽的无情需求,未来的通信网络,如那些连接手机和计算机的网络,必须无情地向更高的频率移动。世界上有几个国家目前正在开发工作在100 GHz以上的通信系统,但目前几乎没有必要的部件,如分束器、衰减器和移相器。这一建议是由伊利诺伊大学最近开发的人造2D和3D“晶体”推动的,该晶体包括微等离子体、电介质和金属微柱的周期性阵列。由于这种新形式的人造(即,在自然界中找不到)电磁活性材料包括微柱低温等离子体(类似于霓虹灯标志中的低温等离子体),晶体对输入电磁场的响应可以以电子速度“调节”,而以前的通信组件的性能是固定的。为NSF计划提出的研究将集中在这些动态晶体的基本行为以及它们在~50 GHz-2 THz光谱区域内的通信、传感和检测方面的应用。除了实现新的通信系统外,预计可调谐等离子体光子晶体将产生新的、灵敏的环境污染物探测器,并将能够在微波、毫米波和亚毫米波光谱区域暂时存储电磁能量。这项NSF ECCS提案是由伊利诺伊大学最近开发的人造2D和3D晶体推动的,该晶体包括微等离子体、电介质和金属微柱的周期性阵列,重点关注这些动态晶体的基本行为及其在~50 GHz-2 THz光谱区域内的通信、传感和检测中的应用。因为微等离子体电子密度可以容易地按数量级(并且以电子速度)改变,所以可以操纵这种等离子体光子晶体(PPC)的电磁响应,以便移动、加强或消除静态(即,无等离子体)晶体的传输或衰减模式(共振)。例如,已经证明,通过在金属/介质晶体中选择性地产生低温等离子体,130-150 GHz区域的静态晶体共振的Q值可以增加5倍或更多,蓝移1 GHz。此外,由于微等离子体阵列控制着波导和谐振器之间的耦合程度,具有简单的内部波导/耦合谐振器结构的小立方晶体在139 GHz附近表现出(初步数据)模式分裂和完全的模式抑制。这项技术以前从未出现过,但它似乎对动态毫米波和太赫兹谐振器、滤波器、反射镜、谐振器、移相器、干涉仪和该光谱区域的其他设备具有相当大的前景。特别是,低温等离子体的介电常数与电子密度和背景气体压力的关系使人们能够操纵给定结构的PPC的响应。这种晶体存储(“陷阱”)、反射和偏振毫米波和亚毫米波区域辐射的时间相关能力也将被探索。这些具有电磁活性的人造材料不仅可用于100-500 GHz的通信系统,而且在基础科学方面也具有相当大的价值。特别是,PPC非常适合作为试验台,严格测试Drude关于低温等离子体折射率的公式,特别是在微等离子体典型的电子密度和大气背景压力下。该奖项反映了NSF的法定使命,并通过使用基金会的智力价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(0)
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James Eden其他文献
<strong>Mosaic Fabry disease in a male presenting as hypertrophic cardiomyopathy: When enzyme levels are not enough</strong>
- DOI:
10.1016/j.ymgme.2020.12.188 - 发表时间:
2021-02-01 - 期刊:
- 影响因子:
- 作者:
Christopher Orsborne;Maria Xu;James Eden;Andrew Wallace;Heather Church;Karen Tylee;Sasalu Deepak;Christopher Cassidy;Peter Woolfson;Christopher Miller;Matthias Schmitt;Ana Jovanovic;William Newman - 通讯作者:
William Newman
James Eden的其他文献
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{{ truncateString('James Eden', 18)}}的其他基金
SCALING OF MICROCAVITY PLASMAS TOWARD 1 um: SCIENCE AND ENGINEERING OF SPATIALLY-CONFINED, LOW TEMPERATURE PLASMAS
将微腔等离子体缩小至 1 微米:空间受限低温等离子体的科学与工程
- 批准号:
0853739 - 财政年份:2009
- 资助金额:
$ 51万 - 项目类别:
Standard Grant
Coherent Sources in the Vacuum Ultraviolet
真空紫外线中的相干源
- 批准号:
9022187 - 财政年份:1991
- 资助金额:
$ 51万 - 项目类别:
Continuing Grant
Photoprocesses and Chemical Kinetics in the Excimer Molecules (REU Supplement)
准分子中的光处理和化学动力学(REU 补充)
- 批准号:
8915795 - 财政年份:1990
- 资助金额:
$ 51万 - 项目类别:
Continuing Grant
Engineering Research Equipment Grant: Vacuum Ultraviolet and Electron Spectroscopy Equipment
工程研究设备资助:真空紫外和电子能谱设备
- 批准号:
8806795 - 财政年份:1988
- 资助金额:
$ 51万 - 项目类别:
Standard Grant
Engineering Research Equipment Grant: Pulsed Dye Amplifier and CW Dye Laser Upgrade
工程研究设备补助金:脉冲染料放大器和连续波染料激光器升级
- 批准号:
8807679 - 财政年份:1988
- 资助金额:
$ 51万 - 项目类别:
Standard Grant
Visible Molecular Lasers - REU Supplement
可见分子激光器 - REU 补充材料
- 批准号:
8611474 - 财政年份:1987
- 资助金额:
$ 51万 - 项目类别:
Continuing Grant
Photoprocesses and Chemical Kinetics in the Excimer Molecules
准分子中的光过程和化学动力学
- 批准号:
8715681 - 财政年份:1987
- 资助金额:
$ 51万 - 项目类别:
Continuing Grant
Ultraviolet Radiation Generator for Experiments in Chemical Physics and Molecular Spectroscopy
用于化学物理和分子光谱实验的紫外辐射发生器
- 批准号:
8605497 - 财政年份:1986
- 资助金额:
$ 51万 - 项目类别:
Standard Grant
Engineering Foundation Conference on Future Prospects and Applications for UV and VUV Lasers, Santa Barbara, California February 22-27, 1987
关于 UV 和 VUV 激光器未来前景和应用的工程基金会会议,加利福尼亚州圣巴巴拉,1987 年 2 月 22-27 日
- 批准号:
8611777 - 财政年份:1986
- 资助金额:
$ 51万 - 项目类别:
Standard Grant
Photoprocesses in the Excimer Molecules
准分子中的光处理
- 批准号:
8411743 - 财政年份:1984
- 资助金额:
$ 51万 - 项目类别:
Continuing Grant
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