Rydberg-Atom Terahertz Heterodyne Receiver with Ultrahigh Spectral Resolution

作     者：Zhenyue She Xiaojie Zhu Yayi Lin Xianzhe Li Xiaolin Yang Yanfei Shang Yuqin Teng Haitao Tu Kaiyu Liao Caixia Zhang Xiaohong Liu Jiehua Chen Wei Huang 佘圳跃;祝孝杰;林雅益;李显喆;杨小林;尚燕飞;滕玉勤;涂海涛;廖开宇;张彩霞;刘笑宏;陈杰华;黄巍

作者机构：Key Laboratory of Atomic and Subatomic Structure and Quantum Control(Ministry of Education)School of PhysicsSouth China Normal UniversityGuangzhou 510006China Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum MaterialsSouth China Normal UniversityGuangzhou 510006China Guangdong-Hong Kong Joint Laboratory of Quantum MatterFrontier Research Institute for PhysicsSouth China Normal UniversityGuangzhou 510006China GPETR Center for Quantum Precision MeasurementSouth China Normal UniversityGuangzhou 510006China State Key Laboratory of Magnetic Resonance and Atomic and Molecular PhysicsInnovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430071China University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Atomic Frequency StandardsInnovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430071China Wuhan Institute of Quantum TechnologyWuhan 430206China 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2024年第41卷第8期

页      面：17-21页

核心收录：

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：supported by the National Key Research and Development Program of China(Grant No.2021YFA1402004) the Key-Area Research and Development Program of Guangdong Province,China(Grant Nos.2019B030330001 and 2020B0301030008) the National Natural Science Foundation of China(Grant Nos.12225405,12204182,and U20A2074) the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0301705) the Natural Science Foundation of Guangdong Province,China(Grant No.2022A1515012026) 

主　　题：magnitude holds resolution 

摘      要：Terahertz heterodyne receivers with high sensitivity and spectral resolution are crucial for various ***,we present a room-temperature atomic terahertz heterodyne receiver that achieves ultrahigh sensitivity and frequency *** a signal frequency of 338.7 GHz,we obtain a sensitivity of 2.88±0.09V·cm^(−1)·Hz^(−1/2) for electric field *** calibrated linear dynamical range spans approximately 89 dB,ranging from−110 dBV/cm to−21 dBV/*** demodulate a 400 symbol stream encoded in 4-state phase-shift keying,demonstrating excellent phase detection *** scanning the frequency of the local oscillator,we realize a terahertz spectrometer with Hz level frequency *** resolution is more than two orders of magnitude higher than that of existing terahertz *** demonstrated terahertz heterodyne receiver holds promising potential for working across the entire terahertz spectrum,significantly advancing its practical applications.