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激光与光电子学进展 2024年

作者：王超孙盛芝钱滨彭思达冯泽祺邱建荣 Laboratory of Infrared Materials and Devices The Research Institute of Advanced Technologies Ningbo University Institute of Light+X Science and Technology Faculty of Electrical Engineering and Computer Science Ningbo University State key laboratory of fluid power and mechatronic systems Zhejiang University Hangzhou State Key Laboratory of Modern Optical Instrumentation Zhejiang University

Temperature is a common physical quantity with great significance, especially under harsh conditions, such as high voltage, and strong electric/magnetic fields. Here, we demonstrate the development of an all-fiber-optic temperature sensor based on a fiber-end microstructure doped with quantum dots(QDs). The microstructure was fabricated on a fiber tip by two-photon polymerization technology. The results show that the fluorescence intensity of the QDs microstructure reduced with the increase of temperature while the peak position of photoluminescence exhibits a linear change within the temperature range of 26-70 ℃. The developed sensor exhibits a high-temperature sensitivity of 135 pm/℃. The methods developed in our work could have enormous potential for the development of fiber-end temperature sensors.

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A high-efficiency 240 W-level thin-rod Yb:YAG amplifier with dual-wavelength pumping method

A high-efficiency 240 W-level thin-rod Yb:YAG amplifier with...

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CLEO: science and Innovations, S and I 2022

作者： Wang, Shang Liu, Zhaojun Cong, Zhenhua Zhang, Xingyu Zhao, Zhigang Key Laboratory of Laser & Infrared System Ministry of Education Shandong University Qingdao266237 China School of Information Science and Engineering Shandong University Qingdao266237 China Shandong Provincial Key Laboratory of Laser Technology and Application Shandong University Qingdao266237 China

A high-efficiency 240 W-level ultrashort pulse laser amplifier based on thin-rod Yb:YAG was obtained by adopting a dual-wavelength (940 nm and 969 nm) pumping method, along with a power extraction efficiency of ~51%. ... 详细信息

ISBN: (纸本)9781557528209

关键词： Yttrium aluminum garnet

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Meterscale Strong Coupling between Magnons and Photons

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Physical Review Letters 2023年第10期131卷 106702-106702页

作者： Jinwei Rao C. Y. Wang Bimu Yao Z. J. Chen K. X. Zhao Wei Lu School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China

We experimentally realize a meterscale strong coupling effect between magnons and photons at room temperature, with a coherent coupling of ∼20 m and a dissipative coupling of ∼7.6 m. To this end, we integrate a saturable gain into a microwave cavity and then couple this active cavity to a magnon mode via a long coaxial cable. The gain compensates for the cavity dissipation, but preserves the cavity radiation that mediates the indirect photon-magnon coupling. It thus enables the long-range strong photon-magnon coupling. With full access to traveling waves, we demonstrate a remote control of photon-magnon coupling by modulating the phase and amplitude of traveling waves, rather than reconfiguring subsystems themselves. Our method for realizing long-range strong coupling in cavity magnonics provides a general idea for other physical systems. Our experimental achievements may promote the construction of information networks based on cavity magnonics.

关键词： Magnetization dynamics Magnons Spintronics Magnetic insulators Ferromagnetic resonance Microwave techniques

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Analysis of infrared polarization characteristics and modeling of operating distance on aerostat platform in sea fog

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Hongwai Yu Haomibo Xuebao/Journal of infrared and Millimeter Waves 2025年第3期44卷 454-463页

作者： Ye, Min-Rui Cui, Wen-Nan Huang, Xia-Yang Zhang, Tao ShanghaiTech University School of Information Science and Technology Shanghai201210 China Shanghai Institute of Technical Physics Chinese Academy of Science Shanghai200083 China University of Chinese Academy of Sciences Beijing100049 China Key Laboratory of Intelligent Infrared Perception Chinese Academy of Sciences Shanghai200083 China

The study aims to reveal the detection advantages of infrared polarization imaging systems deployed on aerostat platforms in sea fog conditions. Firstly，based on the polarization bidirectional reflection distribution function，this research analyzes how polarization characteristics vary with observation angles，demonstrating the applicability of infrared polarization in oblique imaging from aerostats. Secondly，by using the Monte-Carlo method and MRTD model，the study develops a model to determine the maximum operating distance of infrared polarization imaging systems. This model verifies the superiority of infrared polarization imaging over infrared intensity imaging in terms of maintaining features and detection distance under sea fog conditions. The results provide theoretical analysis and simulation evidence supporting the deployment of infrared polarization technology on aerostat platforms. © 2025 Chinese Optical Society. All rights reserved.

关键词： Distribution functions

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Nonlinear photonic quasi-periodic spiral

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Chinese Optics Letters 2024年第3期22卷 112-117页

作者：曾静王森赵如薇刘永兴徐铁峰盛艳徐天翔 Laboratory of Infrared Materials and Devices Research Institute of Advanced TechnologiesNingbo UniversityNingbo 315211China Zhejiang Key Laboratory of Photoelectric Materials and Devices Ningbo UniversityNingbo 315211China Ningbo Institute of Oceanography Ningbo 315832China Department of Quantum Science and Technology Research School of PhysicsAustralian National UniversityCanberraACT 2601Australia

The design of nonlinear photonic Vogel's spiral based on quasi-crystal theory was *** main parameters of Vogel's spiral were arranged to obtain multi-reciprocal *** structure was fabricated by the near-infrared femtosecond laser poling technique,forming a nonlinear photonic structure,and multiple ring-like nonlinear Raman±Nath second-harmonic generation processes were realized and analyzed in *** structure for the cascaded thirdharmonic generation process was *** results could help deepen the understanding of Vogel's spiral and quasi-crystal and pave the way for the combination of quasi-crystal theory with more aperiodic structures.

关键词： nonlinear photonic quasi-crystal second-harmonic generation Vogel's spiral nonlinear Raman-Nath diffraction femtosecond laser poling

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Recent progress and challenges on two-dimensional material photodetectors from the perspective of advanced characterization technologies

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Nano Research 2021年第6期14卷 1840-1862页

作者： Fang Zhong Hao Wang Zhen Wang Yang Wang Ting He Peisong Wu Meng Peng Hailu Wang Tengfei Xu Fang Wang Peng Wang Jinshui Miao Weida Hu State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai200083China University of Chinese Academy of Sciences Beijing100049China School of Physical Science and Technology ShanghaiTech UniversityShanghai201210China

Atomically thin two-dimensional(2D)materials exhibit enormous potential in photodetectors because of novel and extraordinary properties,such as passivated surfaces,tunable bandgaps,and high ***-performance photodetectors based on 2D materials have been fabricated for broadband,position,polarization-sensitive detection,and large-area array ***,the current performance of 2D material photodetectors is not outstanding enough,including response speed,detectivity,and so *** way to further promote the development of 2D material photodetectors and their corresponding practical applications is still a tremendous *** this article,these issues of 2D material photodetectors are analyzed and expected to be solved by combining micro-nano characterization *** inherent physical properties of 2D materials and photodetectors can be accurately characterized by Raman spectroscopy,transmission electron microscopy(TEM),and scattering scanning near-field optical microscope(s-SNOM).In particular,the precise probe of lattice defects,doping concentration,and near-field light absorption characteristics can promote the researches of low-noise and high-responsivity *** photocurrent microscope(SPCM)can show the overall spatial distribution of photocurrent and analyze the mechanism of ***(PL)spectroscopy and Kelvin probe force microscope(KPFM)can characterize the material bandgap,work function distribution and interlayer coupling characteristics,making it possible to design high-performance photodetectors through energy band *** advanced characterization techniques cover the entire process from material growth,to device preparation,and to performance analysis,and systematically reveal the development status of 2D material ***,the prospects and challenges are discussed to promote the application of 2D material photodetectors.

关键词： characterization technologies photodetectors two-dimensional materials atomically thin

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Ion implantation process and lattice damage mechanism of boron doped crystalline germanium

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红外与毫米波学报 2024年第6期43卷 749-754页

作者： HABIBA Um E CHEN Tian-Ye LIU Chi-Xian DOU Wei LIU Xiao-Yan LING Jing-Wei PAN Chang-Yi WANG Peng DENG Hui-Yong SHEN Hong DAI Ning State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China University of Chinese Academy of Sciences Beijing 100049China College of Physics and Optoelectronic Engineering Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China Zhejiang Laboratory Hangzhou 311100China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China

The response wavelength of the blocked-impurity-band(BIB)structured infrared detector can reach 200µm,which is the most important very long wavelength infrared astronomical *** ion implantation method greatly simplifies the fabrication process of the device,but it is easy to cause lattice damage,introduce crystalline defects,and lead to the increase of the dark current of ***,the boron-doped germanium ion implantation process was studied,and the involved lattice damage mechanism was *** conditions involved using 80 keV energy for boron ion implantation,with doses ranging from 1×10^(13)cm^(-2)to 3×10^(15)cm^(-2).After implantation,thermal annealing at 450℃was implemented to optimize dopant activation and mitigate the effects of ion *** sophisticated characterization techniques,including X-ray dif⁃fraction(XRD),Raman spectroscopy,X-ray photoelectron spectroscopy(XPS),and secondary ion mass spec⁃trometry(SIMS)were used to clarify lattice *** lower doses,no notable structural alterations were ob⁃***,as the dosage increased,specific micro distortions became apparent,which could be attributed to point defects and residual *** created lattice damage was recovered by thermal treatment,however,an irreversible strain induced by implantation still existed at heavily dosed samples.

关键词： boron doped germanium ion implantation lattice damage

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1.8 W, high efficiency, pump-enhanced, narrow linewidth optical parametric oscillator at 3.8 μm

1.8 W, high efficiency, pump-enhanced, narrow linewidth opti...

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作者： Zhao, Gang Tan, Wei Liu, Gaoyou Li, Chen Hu, Qiongyu Guo, Quanxin Zhao, Zhigang Liu, Zhaojun School of Information Science and Engineering Shandong University Qingdao266237 China Key Laboratory of Time and Frequency Primary Standards National Time Service Center Chinese Academy of Sciences Xi'an710600 China Shandong Provincial Key Laboratory of Laser Technology and Application Qingdao266237 China Key Laboratory of Laser & Infrared System Shandong University Ministry of Education Qingdao266237 China Center for Optics Research and Engineering Shandong University Qingdao266237 China

A high efficiency, continuous-wave, narrow linewidth, pump-enhanced optical parametric oscillator (OPO) at 3.8 μm was demonstrated, which was pumped by a 1064 nm fiber laser with a linewidth of 18 kHz. The low frequency modulation locking technique was employed to stabilize the output power. The wavelengths of signal and idler were 1475.5 nm and 3819.9 nm at 25 °C, respectively. The pump-enhanced structure was applied, leading to a maximum quantum efficiency of over 60% with pump power of 3W. The maximum output power of idler light is 1.8 W with a linewidth of 363 kHz. The excellent tuning performance of the OPO was also demonstrated. In order to avoid mode-splitting and decrease of pump enhancing factor due to feedback light in the cavity, the crystal was placed obliquely to the pump beam and the maximum output power was increased by 19%. At the maximum output power of idler light, the M2 factors in the x and y directions were 1.30 and 1.33, respectively. © 2023 Optica Publishing Group.

关键词： Optical parametric oscillators

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All-fiber mid-infrared supercontinuum generation with high coherence in chalcogenide fiber pumped by 2.8 µm Raman femtosecond solitons

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infrared Physics and technology 2025年 148卷

作者： Zhang, Chunyu Song, Jian Zhang, Zhilin Xia, Kai Wei, Zibo Lv, Meng Mei, Chao Yang, PeiLong Peng, Xuefeng Xu, Peipeng Dai, Shixun Laboratory of Infrared Materials and Devices The Research Institute of Advanced Technologies Ningbo University Ningbo315211 China Department of Physics School of Physical Science and Technology Ningbo University Ningbo315211 China College of Science & Technology Ningbo University Ningbo315211 China Technology Innovation Center of Infrared Remote Sensing Metrology Technology State Administration for Market Regulation Beijing100029 China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai200050 China

We present an all-fiber mid-infrared supercontinuum (MIR-SC) generation in As2S3 chalcogenide glass fiber, powered by a 2.8 µm femtosecond laser generated through the soliton self-frequency shift (SSFS) effect in fluoride fiber. To ensure high-quality femtosecond laser pulse production, we thoroughly investigated the SSFS effect in three types of fibers using 2.0 µm femtosecond laser as pump source. Ultimately, we obtained 2.8 µm soliton pulses with an average power of 241 mW, a conversion efficiency of 42.5 % and a peak power reaching 36.5 kW in an 8 m-long ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) fiber. By injecting the 2.8 µm pulses into a segment of As2S3 fiber, where this wavelength situated rightly in the normal dispersion region of this fiber, a SC spanning from 1.83 to 4.0 µm was generated with excellent spectral flatness. Furthermore, we simulated the spectral evolution of the pulses in the As2S3 fiber, the simulation results showing strong agreement with experimental observations. The spectral coherence factor |g12(1)| was estimated close to 1 across the entire spectral range, indicating a good coherence of this SC. © 2025 Elsevier B.V.

关键词： Femtosecond lasers

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Transparent broadband microwave metamaterial absorber with thermal insulating and soundproof

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Optoelectronics Letters 2021年第2期17卷 85-89页

作者： YANG Chang CHEN Sai NIU Shuai XIAO Lin QU Yan-chen National Key Laboratory of Science and Technology on Tunable Laser Harbin Institute of TechnologyHarbin 150080China Nanophotonics and Optoelectronics Research Center Qian Xuesen Laboratory of Space TechnologyChina Academy of Space TechnologyBeijing 100094China Key Laboratory of Infrared Imaging Materials and Detectors Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China

Nowadays, multi-functional materials are desperately required for adapting the complex environment, which urges us to take more factors into consideration. Here, we proposed a broadband microwave absorber with multi-functionality such as optically transparent, thermal insulating and soundproof properties. Using indium tin oxide(ITO) based metamaterial, the device can achieve above 90% microwave absorption from 5.6 GHz to 23 GHz(cover X and Ku band). Moreover, with designed vacuum structure inside, the device is thermal insulating and soundproof. These multi-functional advantages give the absorber more flexibility in electromagnetic shielding and stealth application, which can be potentially applied in windows related industry.

关键词： absorber microwave proof

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