A terahertz spectrometer on a chip, at the thermodynamical limits

芯片上的太赫兹光谱仪,处于热力学极限

基本信息

  • 批准号:
    1810506
  • 负责人:
  • 金额:
    $ 39万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2018
  • 资助国家:
    美国
  • 起止时间:
    2018-09-01 至 2022-08-31
  • 项目状态:
    已结题

项目摘要

Terahertz spectrometry offers a platform for long-distance and non-destructive detection of trace chemicals and gases, explosives, pathogens, and biological agents. These molecules and hazardous agents have unique absorption spectra in the terahertz frequencies, enabling identification of concealed hazardous substances from remote distances. Heterodyne spectrometers are at the frontier for high spectral resolution terahertz spectrometry. Achieved through a number of different techniques such as nonlinear frequency mixing in Schottky diodes, superconductor-insulator-superconductor structures, or hot electron bolometers, they have linewidth-to-center frequency ratios down to one part in a million. These state-of-the-art heterodyne spectrometers and mixers, however, are bulky (weighing tens of kilograms), are bounded by electronic noise far from the fundamental noise limits, and often require cryogenic cooling to reach appreciable sensitivities. This project proposes a chip-scale terahertz spectrometer based on modular integration of a chip-scale laser frequency comb with a chip-scale photomixer. The laser frequency comb consists of discrete optical frequency lines, widely tunable over an octave. The photomixer is based on a plasmonically-enhanced absorbing substrate, directly coupled to a terahertz antenna to collect the incident terahertz radiation. The proposed single-chip terahertz receiver has spectrometry bandwidth of 1-8 THz with spectral resolution better than a kHz, and operates close to the thermodynamical noise limits. The high-performance, low-cost, and compact terahertz spectrometer brings valuable applications in space sciences, biological analysis, environmental studies, pharmaceuticals, and industrial quality control. The proposed scientific efforts are coupled with an outreach and education plan. This involves outreach to underrepresented high-school students and teachers, improvements to the graduate and undergraduate curriculum, and outreach to the general public with focus on underrepresented women and minority students in summer research experiences for undergraduates. The proposed advancement on the heterodyne chip-scale spectrometer consists of three cross-related Thrusts. In Thrust 1, the project will demonstrate an on-chip frequency comb oscillator with wide tuning range of 1-8 THz and comb line-to-line non-uniformity at 0.2 parts per quadrillion when referenced to the optical carrier. In Thrust 2, the project will develop an on-chip integrated pump laser and amplifier, for heterogeneous integration with the photomixer and frequency comb. In Thrust 3, the project will demonstrate the integrated chip-scale heterodyne receiver based on an antenna-coupled plasmonic photomixer. The team seeks to measure a heterodyne photomixer with double-sideband noise sensitivities close to the fundamental bound. The frequency-agile approach is enabled by their recent preliminary studies and measurements close to or at the thermodynamical noise limits. The proposed terahertz spectrometry architecture and scientific Thrusts can transform the platform of terahertz waves for atmospheric studies, space explorations, and safety-industrial-environmental quality control systems. The scientific Thrusts are integrated with educational outreach and cross-disciplinary training efforts. This three-year project will educate a new generation of scientists at the interface of precision chip-scale frequency combs and plasmonic photomixers for transformative terahertz spectrometry near the fundamental bounds.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 criteria.
太赫兹光谱法为远距离和非破坏性检测微量化学物质和气体、爆炸物、病原体和生物制剂提供了一个平台。这些分子和有害物质在太赫兹频率上具有独特的吸收光谱,能够从远处识别隐藏的有害物质。外差光谱仪是高光谱分辨率太赫兹光谱法的前沿。通过许多不同的技术,如肖特基二极管的非线性频率混合,超导体-绝缘体-超导体结构,或热电子辐射热计,它们的线宽与中心频率比降低到百万分之一。然而,这些最先进的外差光谱仪和混频器体积庞大(重达数十公斤),受到远离基本噪声限制的电子噪声的限制,并且通常需要低温冷却才能达到可观的灵敏度。本课题提出了一种基于芯片级激光频率梳与芯片级光度计模块集成的芯片级太赫兹光谱仪。激光频率梳由离散的光学频率线组成,可在一个倍频程范围内广泛调谐。光电混合器是基于一个等离子体增强吸收衬底,直接耦合到一个太赫兹天线收集入射太赫兹辐射。所提出的单片太赫兹接收器具有1-8太赫兹的光谱带宽,光谱分辨率优于1 kHz,并且接近热力学噪声极限。高性能、低成本和紧凑的太赫兹光谱仪在空间科学、生物分析、环境研究、制药和工业质量控制方面带来了宝贵的应用。拟议的科学努力与一项推广和教育计划相结合。这包括向代表性不足的高中学生和教师伸出援手,改进研究生和本科课程,并向公众伸出援手,重点关注代表性不足的女性和少数民族学生在本科生暑期研究经历中的表现。本文提出的外差芯片级光谱仪由三个相互关联的推力组成。在Thrust 1中,该项目将展示一种片上频率梳状振荡器,其调谐范围为1-8太赫兹,在参考光载波时,梳状振荡器的线对线不均匀性为千万亿分之0.2。在推力2中,该项目将开发一个片上集成泵浦激光器和放大器,用于光电混合器和频率梳的异构集成。在推力3中,该项目将展示基于天线耦合等离子体光电混合器的集成芯片级外差接收器。该团队试图测量具有接近基本边界的双边带噪声灵敏度的外差photomixer。频率敏捷方法是通过他们最近的初步研究和接近或接近热力学噪声极限的测量而实现的。提议的太赫兹光谱结构和科学推力可以将太赫兹波的平台转化为大气研究,空间探索和安全-工业-环境质量控制系统。科学推进与教育推广和跨学科培训工作相结合。这个为期三年的项目将在精密芯片级频率梳和等离子体光电混合器的界面上培养新一代的科学家,用于接近基本边界的变换器太赫兹光谱。该奖项反映了美国国家科学基金会的法定使命,并通过使用基金会的知识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

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Chee Wei Wong其他文献

Free-space terabit/s coherent optical links via platicon frequency microcombs
  • DOI:
    10.1186/s43593-025-00082-0
  • 发表时间:
    2025-05-20
  • 期刊:
  • 影响因子:
    32.100
  • 作者:
    Wenting Wang;Hao Liu;Jiagui Wu;James F. McMillan;Dong IL Lee;Futai Hu;Wenzheng Liu;Jinghui Yang;Hangbo Yang;Abhinav Kumar Vinod;Yahya H. Ezzeldin;Christina Fragouli;Mingbin Yu;Patrick Guo-Qiang Lo;Dim-Lee Kwong;Devin S. Kahrs;Ninghua Zhu;Chee Wei Wong
  • 通讯作者:
    Chee Wei Wong
Real-time transition dynamics and stability of chip-scale dispersion-managed frequency microcombs
芯片级色散管理频率微梳的实时过渡动力学和稳定性
  • DOI:
    10.1038/s41377-020-0290-3
  • 发表时间:
    2020-04-03
  • 期刊:
  • 影响因子:
    23.400
  • 作者:
    Yongnan Li;Shu-Wei Huang;Bowen Li;Hao Liu;Jinghui Yang;Abhinav Kumar Vinod;Ke Wang;Mingbin Yu;Dim-Lee Kwong;Hui-Tian Wang;Kenneth Kin-Yip Wong;Chee Wei Wong
  • 通讯作者:
    Chee Wei Wong
Block-MDS QC-LDPC Codes for Information Reconciliation in Key Distribution
用于密钥分配中信息协调的块 MDS QC-LDPC 码
  • DOI:
    10.48550/arxiv.2403.00192
  • 发表时间:
    2024
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Lev Tauz;Debarnab Mitra;Jayanth Shreekumar;M. Sarihan;Chee Wei Wong;Lara Dolecek
  • 通讯作者:
    Lara Dolecek
Dispersion-managed Hong-Ou-Mandel revival via a biphoton frequency comb
通过双光子频率梳进行色散管理的红欧曼德尔复兴
Interdisciplinary advances in microcombs: bridging physics and information technology
  • DOI:
    10.1186/s43593-024-00071-9
  • 发表时间:
    2024-10-10
  • 期刊:
  • 影响因子:
    32.100
  • 作者:
    Bai-Cheng Yao;Wen-Ting Wang;Zhen-Da Xie;Qiang Zhou;Teng Tan;Heng Zhou;Guang-Can Guo;Shi-Ning Zhu;Ning-Hua Zhu;Chee Wei Wong
  • 通讯作者:
    Chee Wei Wong

Chee Wei Wong的其他文献

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{{ truncateString('Chee Wei Wong', 18)}}的其他基金

SWIFT: Coexisting spectrally-dense communications and passive sensing in directed multi-hop sub-millimeter-wave networks
SWIFT:在定向多跳亚毫米波网络中共存频谱密集通信和无源传感
  • 批准号:
    2229560
  • 财政年份:
    2022
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
NRT-QISE: Accelerating Interdisciplinary Frontiers in Quantum Sciences and Technologies (AIF-Q)
NRT-QISE:加速量子科学与技术的跨学科前沿(AIF-Q)
  • 批准号:
    2125924
  • 财政年份:
    2021
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
QuIC-TAQS: A high-dimensional multi-access scalable testbed for the interconnected quantum network
QuIC-TAQS:互连量子网络的高维多访问可扩展测试床
  • 批准号:
    2137984
  • 财政年份:
    2021
  • 资助金额:
    $ 39万
  • 项目类别:
    Continuing Grant
PFI-TT: A chip-scale laser sensing module for precision navigation and metrology
PFI-TT:用于精密导航和计量的芯片级激光传感模块
  • 批准号:
    2016561
  • 财政年份:
    2020
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
SBIR Phase I: Metasurface optical elements for augmented/mixed-reality smart glasses
SBIR 第一阶段:用于增强/混合现实智能眼镜的超表面光学元件
  • 批准号:
    2015151
  • 财政年份:
    2020
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
I-Corps: Chip-scale laser ranging module for precision autonomous navigation and vehicular safety
I-Corps:用于精确自主导航和车辆安全的芯片级激光测距模块
  • 批准号:
    2029811
  • 财政年份:
    2020
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
QII-TAQS: A Chip-Scale Spin-Photon Memory Interface with Coherence Exceeding One Second
QII-TAQS:相干性超过一秒的芯片级自旋光子存储器接口
  • 批准号:
    1936375
  • 财政年份:
    2019
  • 资助金额:
    $ 39万
  • 项目类别:
    Continuing Grant
Collaborative Research: Programmable chip-scale quantum photonics platform based on frequency-comb cluster-states for multicasting quantum networks
合作研究:基于频梳簇态的可编程芯片级量子光子平台,用于多播量子网络
  • 批准号:
    1919355
  • 财政年份:
    2019
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
SpecEES: A spectrally-dense 650-GHz photonic wireless backhaul via secure network coding
SpecEES:通过安全网络编码的光谱密集 650 GHz 光子无线回程
  • 批准号:
    1824568
  • 财政年份:
    2018
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant
EFRI ACQUIRE: A chip-scale high-dimensional entanglement and quantum memory module for secure communications
EFRI ACQUIRE:用于安全通信的芯片级高维纠缠和量子存储模块
  • 批准号:
    1741707
  • 财政年份:
    2017
  • 资助金额:
    $ 39万
  • 项目类别:
    Standard Grant

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