IEEE Journal of Quantum Electronics最新文献_第4页

Enhanced Spectrally Selective Terahertz Detection in a Photo-Thermoelectric Graphene Detector With Dual Nano-Grating Gates 带双纳米光栅的光热电石墨烯探测器的增强型光谱选择性太赫兹探测功能

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-09-18 DOI: 10.1109/JQE.2024.3462953

Faramarz Alihosseini;Hesam Zandi

{"title":"Enhanced Spectrally Selective Terahertz Detection in a Photo-Thermoelectric Graphene Detector With Dual Nano-Grating Gates","authors":"Faramarz Alihosseini;Hesam Zandi","doi":"10.1109/JQE.2024.3462953","DOIUrl":"10.1109/JQE.2024.3462953","url":null,"abstract":"We introduce a high-performance terahertz detector based on the photo-thermoelectric effect (PTE) in graphene. Our study outlines a novel approach to enhance terahertz detection through a photodetector that employs a hybrid structure. This structure combines the localized surface plasmon resonance of dual grating gates with the resonant modes of a Fabry-Perot cavity configuration, facilitating a strong interaction between terahertz light and the active graphene layer, thereby improving light absorption. Our numerical investigation reveals frequency selectivity within the terahertz absorptance spectrum for incident waves with transverse magnetic polarization, leading to near-perfect absorptance of graphene. This substantial absorption creates an amplified thermal gradient across the graphene channel due to localized heat generation from terahertz wave absorption. The detector’s absorption characteristics can be adjusted by altering geometrical parameters and tuning two gate voltages. Furthermore, incorporating dual grating gates to create a pn-junction leads to a non-uniform Seebeck coefficient along the channel, enhancing the generated voltage. At a resonant frequency of 1.6 THz, the detector demonstrates a responsivity of 1.26 V/W and a noise-equivalent power (NEP) of \u0000<inline-formula> <tex-math>$5.2 mathrm {nW}/sqrt {mathrm {Hz}}$ </tex-math></inline-formula>\u0000 at room temperature, under biasing the two grating gates with the low voltages of ±0.2 V.","PeriodicalId":13200,"journal":{"name":"IEEE Journal of Quantum Electronics","volume":"60 6","pages":"1-8"},"PeriodicalIF":2.2,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142255946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mode-Locking and Q-Switching in Holmium Doped Fiber Laser Using Topological Insulator (Sb₂Te₃) as Saturable Absorber 使用拓扑绝缘体 (Sb2Te3) 作为饱和吸收体的掺钬光纤激光器中的模式锁定和 Q 开关

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-09-09 DOI: 10.1109/JQE.2024.3456073

H. Ahmad;K. Kamaruzzaman;M. Z. Samion

引用次数: 0

Frequency Modulation Nonlinear Correction and Ranging in FMCW LiDAR FMCW 激光雷达中的调频非线性校正与测距

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-09-05 DOI: 10.1109/JQE.2024.3454604

Yuchen Jiang;Miao Hu;Mengmeng Xu;Haozhen Li;Xuefang Zhou;Meihua Bi;Sunqiang Pan;Chong Liu

{"title":"Frequency Modulation Nonlinear Correction and Ranging in FMCW LiDAR","authors":"Yuchen Jiang;Miao Hu;Mengmeng Xu;Haozhen Li;Xuefang Zhou;Meihua Bi;Sunqiang Pan;Chong Liu","doi":"10.1109/JQE.2024.3454604","DOIUrl":"10.1109/JQE.2024.3454604","url":null,"abstract":"The linearity of the laser frequency modulation is a crucial factor that affects the performance of the frequency-modulated continuous wave (FMCW) LiDAR ranging. Nonlinearity can influence ranging resolution and introduce errors. This paper proposes a method for correcting frequency modulation nonlinearity based on waveform preprocessing for the modulation signal of the laser. After correction, the residual nonlinearity (1-r2) of the laser is reduced to \u0000<inline-formula> <tex-math>$1.85times 10^{-4}$ </tex-math></inline-formula>\u0000 for the up-sweeping and \u0000<inline-formula> <tex-math>$8.47times 10^{-4}$ </tex-math></inline-formula>\u0000 for the down-sweeping using the modulation signal with the repetition frequency of 50 kHz. The full-width at half of the maximum (FWHM) of the spectrum decreases by 86% compared to pre-correction, resulting in the ranging error of 0.37% at the distance of 38 cm. With distances of 0.90 m, 1.80 m, 2.89 m, and 4.13 m, respectively, the ranging error stabilizes at 0.2%, and the minimum deflection of distance can reach \u0000<inline-formula> <tex-math>$8~mathrm {mu m}$ </tex-math></inline-formula>\u0000.","PeriodicalId":13200,"journal":{"name":"IEEE Journal of Quantum Electronics","volume":"60 6","pages":"1-7"},"PeriodicalIF":2.2,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142191335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase Shifts in Gain-Switched Semiconductor Laser Subharmonic Pulse Trains 增益开关半导体激光器次谐波脉冲序列中的相位偏移

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-09-02 DOI: 10.1109/JQE.2024.3453281

Thomas B. Simpson;Joseph S. Suelzer;Nicholas G. Usechak

{"title":"Phase Shifts in Gain-Switched Semiconductor Laser Subharmonic Pulse Trains","authors":"Thomas B. Simpson;Joseph S. Suelzer;Nicholas G. Usechak","doi":"10.1109/JQE.2024.3453281","DOIUrl":"10.1109/JQE.2024.3453281","url":null,"abstract":"Gain switching of semiconductor lasers by strong sinusoidal current modulation can generate Period Two (P2) and Period Three (P3) sub-harmonic pulse trains. It is known that these pulse trains can be interrupted by bursting events, for the P2 pulse train predominantly consisting of short segments of relatively weak pulses at the modulation frequency (a P1-like state) before the system returns to the dominant P2 state. Similarly, for systems operating in the P3 state, intermittent switching yields combinations of P1- and P2-like pulses. To better understand these experimental observations, we perform numerical simulations using a standard model coupling the circulating optical field to the carriers of the gain medium and then compare the results with our experimental measurements on a single-mode distributed feedback laser. The simulations show that low optical power events typically precede the interruptions of the dominant sub-harmonic pulse trains. During these events, stochastic sources, such as spontaneous emission noise, which interact with the circulating optical field are found to dominate the deterministic changes to the calculated trajectory. With output in either P2 or P3 dominant pulse trains, we numerically and experimentally demonstrate that the induced phase fluctuations follow the statistics of classical telegraph noise for the P2 state, and a three-state variant for the P3 state.","PeriodicalId":13200,"journal":{"name":"IEEE Journal of Quantum Electronics","volume":"60 6","pages":"1-12"},"PeriodicalIF":2.2,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142191336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

All-Optical General RS Flip-Flop and Clocked RS Flip-Flop Based on Cascaded PPLN Waveguides 基于级联 PPLN 波导的全光通用 RS 触发器和时钟 RS 触发器

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-08-26 DOI: 10.1109/JQE.2024.3450371

Jing Shen;Yujuan Feng

引用次数: 0

High-Performance Very Long Wave Infrared Quantum Cascade Detector Grown by MOCVD 利用 MOCVD 技术生长的高性能甚长波红外量子级联探测器

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-08-22 DOI: 10.1109/JQE.2024.3448399

Kai Guo;Yixuan Zhu;Yu Chen;Kun Li;Shenqiang Zhai;Shuman Liu;Ning Zhuo;Jinchuan Zhang;Lijun Wang;Fengqi Liu;Xiaohua Wang;Zhipeng Wei;Junqi Liu

{"title":"High-Performance Very Long Wave Infrared Quantum Cascade Detector Grown by MOCVD","authors":"Kai Guo;Yixuan Zhu;Yu Chen;Kun Li;Shenqiang Zhai;Shuman Liu;Ning Zhuo;Jinchuan Zhang;Lijun Wang;Fengqi Liu;Xiaohua Wang;Zhipeng Wei;Junqi Liu","doi":"10.1109/JQE.2024.3448399","DOIUrl":"https://doi.org/10.1109/JQE.2024.3448399","url":null,"abstract":"We present a very long wave infrared (VLWIR) quantum cascade detector (QCD) optimized for the extraction region grown by metal organic chemical vapor deposition (MOCVD). The wave function of high-energy states has been tailored into a funnel-shaped miniband structure. This design accelerates the extraction and collection of electrons, thereby enhancing the device’s extraction efficiency, with a theoretical calculation value of 91%. Besides, this miniband extraction scheme also increases the number of well barrier pairs between the ground state and the longitudinal optical (LO) phonon step level. The electron loss caused by thermal backfilling and thermally activated leakage can be effectively reduced. For a \u0000<inline-formula> <tex-math>$200~mu $ </tex-math></inline-formula>\u0000m \u0000<inline-formula> <tex-math>$times 200~mu $ </tex-math></inline-formula>\u0000m mesa device from a 4-inch wafer, a peak responsivity of 66 mA/W and a peak specific detectivity of \u0000<inline-formula> <tex-math>$1.4 times 10^{11}$ </tex-math></inline-formula>\u0000 Jones were obtained at 30 K, with the maximum operating temperature persists up to 170 K.","PeriodicalId":13200,"journal":{"name":"IEEE Journal of Quantum Electronics","volume":"60 5","pages":"1-5"},"PeriodicalIF":2.2,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142169758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Probing the Dark Current of Multi-Layer Heterojunction HgCdTe Long-Wavelength and Very-Long-Wavelength Infrared Photodiodes 探测多层异质结 HgCdTe 长波和甚长波红外光二极管的暗电流

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-08-16 DOI: 10.1109/JQE.2024.3445293

Tianxiang Wu;Xi Wang;Liqi Zhu;Xun Li;Jian Huang;Zhikai Gan;Yanfeng Wei;Chun Lin

引用次数: 0

Control of Polaritonic Coupler Using Optical Stark Effect in 2D Hybrid Organic-Inorganic Perovskite Microcavity 利用二维有机-无机混合包晶微腔中的光学斯塔克效应控制极化耦合器

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-08-12 DOI: 10.1109/JQE.2024.3441613

Kenneth Coker;Chuyuan Zheng;Joseph Roger Arhin;Kwame Opuni-Boachie Obour Agyekum;Wei Li Zhang

{"title":"Control of Polaritonic Coupler Using Optical Stark Effect in 2D Hybrid Organic-Inorganic Perovskite Microcavity","authors":"Kenneth Coker;Chuyuan Zheng;Joseph Roger Arhin;Kwame Opuni-Boachie Obour Agyekum;Wei Li Zhang","doi":"10.1109/JQE.2024.3441613","DOIUrl":"https://doi.org/10.1109/JQE.2024.3441613","url":null,"abstract":"This research delves into the innovative application of the optical Stark effect in dynamically guiding polaritons through a Y-shaped potential, forming a polaritonic coupler within a 2D hybrid organic-inorganic perovskite microcavity. The study explores the characteristics of the 2D perovskite, focusing on harnessing the optical Stark-induced energy shift in the polariton branches. The polaritonic coupler, which has a single input and two divergent outputs, is subjected to an external optical Stark pulse, dynamically guiding polaritons between the input and outputs. The research focuses on examining the controllability of the polaritonic coupler through the polariton coupling ratio, highlighting the regulatory role played by the optical Stark effect in this dynamic process. In-depth analyses of the spatial distribution and time evolution of polaritons within the coupler reveal that the optical Stark pulse effectively regulates the polariton coupling ratio, realizing a programmable coupler. This investigation not only advances the fundamental understanding of polariton dynamics within 2D hybrid organic-inorganic perovskite microcavities but also demonstrates the potential for developing optically controlled integrated photonic devices.","PeriodicalId":13200,"journal":{"name":"IEEE Journal of Quantum Electronics","volume":"60 5","pages":"1-8"},"PeriodicalIF":2.2,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142021630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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All-Optical, Reconfigurable, and Power Independent Neural Activation Function by Means of Phase Modulation 通过相位调制实现全光学、可重构和功率无关的神经激活功能

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-08-02 DOI: 10.1109/JQE.2024.3437353

George Sarantoglou;Adonis Bogris;Charis Mesaritakis

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IEEE Journal of Quantum Electronics publication information IEEE 量子电子学报》出版信息

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IEEE Journal of Quantum Electronics Pub Date : 2024-07-30 DOI: 10.1109/JQE.2024.3431491

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