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Preparation of MXene-based hybrids and their application in neuromorphic devices

International Journal of Extreme Manufacturing 2024年第2期6卷 164-188页

作者： Zhuohao Xiao Xiaodong Xiao Ling Bing Kong Hongbo Dong Xiuying Li Bin He shuangchen ruan Jianpang Zhai Kun Zhou Qin Huang Liang Chu School of Materials Science and Engineering Jingdezhen Ceramic UniversityJingdezhen 333403JiangxiPeople’s Republic of China School of Mechanical and Vehicle Engineering Linyi UniversityLinyi 276000ShandongPeople’s Republic of China College of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118GuangdongPeople’s Republic of China School of Mechanical&Aerospace Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore Ningbo Institute of Materials Engineering and Technology Chinese Academy of ScienceNingbo 315201ZhejiangPeople’s Republic of China Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018ZhejiangPeople’s Republic of China

The traditional von Neumann computing architecture has relatively-low information processing speed and high power consumption,making it difficult to meet the computing needs of artificial intelligence(AI).Neuromorphic computing systems,with massively parallel computing capability and low power consumption,have been considered as an ideal option for data storage and AI computing in the ***,as the fourth basic electronic component besides resistance,capacitance and inductance,is one of the most competitive candidates for neuromorphic computing systems benefiting from the simple structure,continuously adjustable conductivity state,ultra-low power consumption,high switching speed and compatibility with existing CMOS *** memristors with applying MXene-based hybrids have attracted significant attention in recent ***,we introduce the latest progress in the synthesis of MXene-based hybrids and summarize their potential applications in memristor devices and neuromorphological *** explore the development trend of memristors constructed by combining MXenes with other functional materials and emphatically discuss the potential mechanism of MXenes-based memristor ***,the future prospects and directions of MXene-based memristors are briefly described.

关键词： MXene etching fabrication memristor neuromorphic

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High-repetition-rate and high-power efficient picosecond thin-disk regenerative amplifier

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High Power Laser Science and Engineering 2024年第2期12卷 16-23页

作者： Sizhi Xu Yubo Gao Xing Liu Yewang Chen Deqin Ouyang Junqing Zhao Minqiu Liu Xu Wu Chunyu Guo Cangtao Zhou Qitao Lue shuangchen ruan Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Sino-German College of Intelligent ManufacturingShenzhen Technology UniversityShenzhenChina Han’s Laser Technology Industry Group Co. Ltd.ShenzhenChina Shenzhen Key Laboratory of Laser Engineering College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhenChina Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology College of Engineering PhysicsShenzhen Technology UniversityShenzhenChina

We present an effective approach to realize a highly efficient,high-power and chirped pulse amplification-free ultrafast ytterbium-doped yttrium aluminum garnet thin-disk regenerative amplifier pumped by a zero-phonon line 969 nm laser *** amplifier delivers an output power exceeding 154 W at a pulse repetition rate of 1 MHz with custom-designed 48 pump *** exceptional thermal management on the thin disk through high-quality bonding,efficient heat dissipation and a fully locked spectrum collectively contributes to achieving a remarkable optical-to-optical efficiency of 61%and a near-diffraction-limit beam quality with an M2 factor of *** the best of our knowledge,this represents the highest conversion efficiency reported in ultrafast thin-disk regenerative ***,the amplifier operates at room temperature and exhibits exceptional stability,with root mean square stability of less than 0.33%.This study significantly represents advances in the field of laser amplification systems,particularly in terms of efficiency and average *** advantageous combination of high efficiency and diffraction limitation positions the thin-disk regenerative amplifier as a promising solution for a wide range of scientific and industrial applications.

关键词： high efficiency high power picosecond laser regenerative amplifier thin-disk laser

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基于零声子线泵浦的高效率Yb∶YAG薄片激光器

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光子学报 2024年第2期53卷 171-179页

作者：高瑜博徐思志陈业旺刘敏秋欧阳德钦吴旭陈俊展赵俊清郭春雨刘星吕启涛阮双琛深圳技术大学中德智能制造学院先进光学精密制造技术广东普通高校重点实验室深圳518118 深圳大学物理与光电工程学院深圳市激光工程重点实验室深圳518060 大族激光科技产业集团股份有限公司深圳518103

高功率激光器在工业应用领域的需求不断增长,提高光-光转化效率是降低其生产制造成本的关键途径。针对提高激光器光-光转化效率所面临的增益介质的热负荷问题,利用锁定波长的969 nm“零声子线”泵浦、自主研制的高性能Yb∶YAG薄片晶体... 详细信息

高功率激光器在工业应用领域的需求不断增长,提高光-光转化效率是降低其生产制造成本的关键途径。针对提高激光器光-光转化效率所面临的增益介质的热负荷问题,利用锁定波长的969 nm“零声子线”泵浦、自主研制的高性能Yb∶YAG薄片晶体和48冲程泵浦系统等,搭建了高效的连续Yb∶YAG薄片激光器系统,实现了最高输出功率373 W,光-光转化效率可达73.37%。其优异性能为后续开展千瓦级超快Yb∶YAG薄片激光器研究奠定了基础。

关键词：薄片激光器多冲程泵浦 Yb∶YAG 高效率

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MXenes and MXene-based composites for energy conversion and storage applications

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Journal of Materiomics 2023年第6期9卷 1067-1112页

作者： Zhuohao Xiao Xiaodong Xiao Ling Bing Kong Hongbo Dong Xiuying Li Xinyuan Sun Bin He shuangchen ruan Jianpang Zhai School of Mechanical and Vehicle Engineering Linyi UniversityLinyi276000ShandongChina School of Materials Science and Engineering Jingdezhen Ceramic UniversityJingdezhen333403JiangxiChina College of New Materials and New Energies Shenzhen Technology UniversityShenzhen518118GuangdongChina Department of Physics Jinggangshan UniversityJi'an343009JiangxiChina

MXenes have received extensive attention from scholars due to their unique layered structure,significant electrical conductivity,and excellent mechanical *** addition to their pristine forms,they could also be incorporated with other components for attaining hybrids and nanocomposites,accompanying with amplified *** has been widely used in lithium batteries,supercapacitors,electromagnetic shielding,tumor therapy,biosensors,photocatalysis,and other fields,and has shown great application potential in energy conversion and *** purpose of this article is to encyclopaedically overview the latest progress in synthesis and characterization of MXenes,while their potential applications in energy conversation such as water splitting and solar cells,as well as in energy storage such as Li-ion batteries,supercapacitors,and hydrogen energy will be comprehensively *** opportunities and challenges are summarized.

关键词： MXenes 2D materials Materials characterization Energy converstion Energy storage

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Generation of single solitons tunable from 3 to3.8μm in cascaded Er^(3+)-doped and Dy^(3+)-doped fluoride fiber amplifiers

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Photonics Research 2022年第9期10卷 2140-2146页

作者： LINPENG YU JINHUI LIANG SHITING HUANG JINZHANG WANG JIACHEN WANG XING LUO PEIGUANG YAN FANLONG DONG XING LIU QITAO LUE CHUNYU GUO shuangchen ruan Shenzhen Key Laboratory of Laser Engineering Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics EngineeringKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Shenzhen Technology UniversityShenzhen 518118China Han’s Laser Technology Industry Group Co. Ltd.Shenzhen 518057China

High-power tunable femtosecond mid-infrared(MIR)pulses are of great interest for many scientific and industrial *** we demonstrate a compact fluoride-fiber-based system that generates single solitons tunable from 3 to 3.8μ*** system is composed of an Er:ZBLAN fiber oscillator and amplifier followed by a fusion-spliced Dy:ZBLAN fiber *** Er:ZBLAN fiber amplifier acts as a power booster as well as a frequency shifter to generate Raman solitons up to 3μ*** Dy:ZBLAN fiber amplifier transfers the energy from the residual 2.8μm radiation into the Raman solitons using an in-band pumping scheme,and further extends the wavelength up to 3.8μ*** residual pump radiation and secondary solitons accompanying the soliton self-frequency shift(SSFS)are recycled to amplify Raman solitons,consequently displaying a higher output power and pulse energy,a wider shifting range,and an excellent spectral *** 252 fs pulses at3.8μm with a record average power of 1.6 W and a pulse energy of 23 n J are *** work provides an effective way to develop high-power widely tunable ultrafast single-soliton MIR laser sources,and this method can facilitate the design of other SSFS-based laser systems for single-soliton generation.

关键词： fiber tunable amplifier

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Improvement of bandwidth in a 100 kHz swept laser source with phase controllable signal driving

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Chinese Optics Letters 2023年第1期21卷 110-114页

作者：杨志伟吴旭裴继红阮双琛 College of Electronic Information Engineering Shenzhen UniversityShenzhen 518060China Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Shenzhen Technology UniversityShenzhen 518118China

Swept source optical coherence tomography(SS-OCT)is a new noninvasive technique for assessing *** it hasadvantages,such as being label-free,noninvasive,and with high resolution,it also has drawbacks:there has been no indepth research into identifying the driving of swept *** on preliminary research,we demonstrate a novel drivingmodulation method of a fiber Fabry–Perot tunable filter ranging phase adjustable as a tool for making bandwidth compensation of a swept laser *** novel method is analyzed in detail;a swept laser source with a sweep rate of100.5 kHz over a range of 152.25 nm and at a center wavelength of 1335.45 nm is demonstrated.

关键词： swept laser source optical design techniques ring lasers laser applications

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High-power mid-infrared femtosecond master oscillator power amplifier Er:ZBLAN fiber laser system

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High Power Laser Science and Engineering 2023年第4期11卷 85-90页

作者： Linpeng Yu Jinhui Liang Qinghui Zeng Jiacheng Wang Xing Luo Jinzhang Wang Peiguang Yan Fanlong Dong Xing Liu Qitao Lü Chunyu Guo shuangchen ruan Shenzhen Key Laboratory of Laser Engineering Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics EngineeringKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceState Key Laboratory of Radio Frequency Heterogeneous IntegrationCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhenChina Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes Shenzhen Technology UniversityShenzhenChina Han’s Laser Technology Industry Group Co. Ltd.ShenzhenChina

High-power femtosecond mid-infrared(MIR)lasers are of vast importance to both fundamental research and *** report a high-power femtosecond master oscillator power amplifier laser system consisting of a singlemode Er:ZBLAN fiber mode-locked oscillator and pre-amplifier followed by a large-mode-area Er:ZBLAN fiber main *** main amplifier is actively cooled and bidirectionally pumped at 976 nm,generating a slope efficiency of 26.9%.Pulses of 8.12 W,148 fs at 2.8μm with a repetition rate of 69.65 MHz are *** the best of our knowledge,this is the highest average power ever achieved from a femtosecond MIR laser *** a compact ultrafast laser system is promising for a wide range of applications,such as medical surgery and material processing.

关键词： femtosecond fiber laser fluoride fiber amplifier master oscillator power amplifier mid-infrared

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Novel Even Beam Splitters Based on Subwavelength Binary Simple Periodic Rectangular Structure

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Nano-Micro Letters 2015年第2期7卷 177-182页

作者： Haixuan Huang shuangchen ruan Tuo Yang Ping Xu College of Electronic Science and Technology Institute of Micro-Nano Optoelectronic Technology Shenzhen University

In this paper, a novel method of a subwavelength binary simple periodic rectangular structure is presented to realize even beam splitting by combining the rigorous couple-wave analysis with the genetic algorithm. Several even splitters in the terahertz region were designed and one of the silicon-based beam splitters designed to separate one incident beam into four emergent beams has total efficiency up to 92.23 %. Zero-order diffraction efficiency was reduced to less than 0.192 % and the error of uniformity decreased to 6.51 9 10-6. These results break the limitation of even beam splitting based on the traditional scalar theory. In addition, the effects of the incident angle, wavelength, as well as the polarizing angle on the diffraction efficiency and uniformity were also investigated.

关键词： Beam splitters Binary optics Diffraction gratings Diffraction theory Subwavelength structures

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Radiation-pressure-induced photoluminescence enhancement of all-inorganic perovskite CsPbBr3 quantum dots

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Photonics Research 2019年第8期7卷 837-846页

作者： YING ZHANG HAIOU ZHU TAIWU HUANG ZONGPENG SONG shuangchen ruan Center for Advanced Material Diagnostic Technology College of Engineering PhysicsShenzhen Technology UniversityShenzhen518118China Guangdong Provincial Key Laboratory of Mico/Nano Optomechatronics Engineering College of Optoelectronic EngineeringShenzhen UniversityShenzhen518060China College of New Materials and New Energies Shenzhen University of TechnologyShenzhen518118China

Perovskite quantum dots(QDs) are of great interest due to their outstanding optoelectronic properties and tremendous application potential. Improving photoluminescence(PL) spectra in all-inorganic perovskite QDs is of great importance for performance enhancement. In this work, the PL quantum yield of the CsPbBr3 perovskite QDs is enhanced from 70% to 95% with increasing radiation pressure. Such enhancement is attributed to the increased binding energy of self-trapped excitons(STEs) upon radiation pressure, which is consistent with its blue-shifted PL and other characterization results. Furthermore, we study ultrafast absorption spectroscopy and find that the dynamics of relaxation from free excitons to STEs in radiation pressure CsPbBr3 QDs is ascribed to stronger electron–phonon coupling in the contracted octahedral structure. It is further demonstrated that radiation pressure can boost the PL efficiency and explore effectively the relationship between the structure and optical properties.

关键词： PL QDs Radiation-pressure-induced photoluminescence enhancement

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Pulse control of frequency and width for a real-time independently adjustable laser source

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Frontiers of Information Technology & Electronic Engineering 2021年第10期22卷 1379-1389页

作者： Zhiwei YANG Xu WU Deqin OUYANG Encheng ZHANG Huibin SUN shuangchen ruan Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering College of Physics Science and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China College of Sino-German Intelligent Manufacturing Shenzhen Technology UniversityShenzhen 518118China

A set of semiconductor laser pulse seed sources based on an embedded chip is *** greatest feature is that the optical pulse frequency and width can be independently adjusted in real *** pulse seed sources can be switched independently and online from the gain-switched mode to the quasi-continuous wave mode to obtain optimal optical parameters for specific *** explore the physical mechanism of the semiconductor laser source,the rate equation that describes the carrier-photon transient change in a semiconductor laser cavity is numerically derived and ***,problems that need to be considered while designing the drive circuit are *** system evaluation indicates that the optical pulse frequency adjustment range is 250 Hz to 42 MHz,and the narrowest optical pulse output width is 80 *** pulse seed source can drive semiconductor lasers with different central wavelengths(1064,1550,and 1970 nm),and can also simultaneously drive two semiconductor lasers and output dual-band optical *** can be used as a seed source for general high-power optical systems,and exhibits good application value and extensive market prospects.

关键词： Electric variable control Electronic design automation and methodology Optical pulse generation Optical control

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