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Emerging material platforms for integrated microcavity photonics

science China(Physics,Mechanics & Astronomy) 2022年第10期65卷 10-28页

作者： Jin Liu Fang Bo Lin Chang Chun-Hua Dong Xin Ou Blake Regan Xiaoqin Shen Qinghai Song Baicheng Yao Wenfu Zhang Chang-Ling Zou Yun-Feng Xiao State Key Laboratory of Optoelectronic Materials and Technologies School of PhysicsSun Yat-sen UniversityGuangzhou 510000China MOE Key Laboratory of Weak-Light Nonlinear Photonics TEDA Institute of Applied Physics and School of PhysicsNankai UniversityTianjin 300071China State Key Laboratory of Advanced Optical Communications System and Networks School of ElectronicsPeking UniversityBeijing 100871China CAS Key Lab of Quantum Information University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Functional Material for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China School of Mathematical and Physical Sciences University of Technology SydneyUltimo 2007Australia School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Harbin Institute of TechnologyShenzhen 518055China Key Laboratory of Optical Fiber Sensing and Communications(Ministry of Education) University of Electronic Science and Technology of ChinaChengdu 611731China State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China

Many breakthroughs in technologies are closely associated with the deep understanding and development of new material *** the main material used in microelectronics,Si also plays a leading role in the development of integrated *** indirect bandgap,absence ofχ(2)nonlinearity and the parasitic nonlinear absorptions at the telecom band of Si imposed technological bottlenecks for further improving the performances and expanding the functionalities of Si microcavities in which the circulating light intensity is dramatically *** past two decades have witnessed the burgeoning of the novel material platforms that are compatible with the complementary metal-oxide-semiconductor(COMS)*** particular,the unprecedented optical properties of the emerging materials in the thin film form have resulted in revolutionary progress in microcavity *** this review article,we summarize the recently developed material platforms for integrated photonics with the focus on chip-scale microcavity *** material characteristics,fabrication processes and device applications have been thoroughly discussed for the most widely used new material *** also discuss open challenges and opportunities in microcavity photonics,such as heterogeneous integrated devices,and provide an outlook for the future development of integrated microcavities.

关键词： microcavity integrated optics nonlinear optics

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Detail-Enhancing Framework for Reference-Based Image Super-Resolution

arXiv

引用

arXiv 2024年

作者： Wang, Zihan Xiong, Ziliang Tang, Hongying Yuan, Xiaobing Shanghai Institution of Micro-system and Information Technology University of Chinese Academy of Science China Computer Vision Laboratory Department of Electrical Engineering LiU Sweden School of Information Science and Technology Shanghai Tech University China

Recent years have witnessed the prosperity of reference-based image super-resolution (Ref-SR). By importing the high-resolution (HR) reference images into the single image super-resolution (SISR) approach, the ill-posed nature of this long-standing field has been alleviated with the assistance of texture transferred from reference images. Although the significant improvement in quantitative and qualitative results has verified the superiority of Ref-SR methods, the presence of misalignment before texture transfer indicates room for further performance improvement. Existing methods tend to neglect the significance of details in the context of comparison, therefore not fully leveraging the information contained within low-resolution (LR) images. In this paper, we propose a Detail-Enhancing Framework (DEF) for reference-based super-resolution, which introduces the diffusion model to generate and enhance the underlying detail in LR images. If corresponding parts are present in the reference image, our method can facilitate rigorous alignment. In cases where the reference image lacks corresponding parts, it ensures a fundamental improvement while avoiding the influence of the reference image. Extensive experiments demonstrate that our proposed method achieves superior visual results while maintaining comparable numerical outcomes. Copyright © 2024, The Authors. All rights reserved.

关键词： Textures

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All-optical nanoscale thermometry with silicon carbide color centers

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Photonics Research 2024年第8期12卷 1696-1702页

作者： CHENGYING LIU HAIBO HU ZHENGTONG LIU SHUMIN XIAO JUNFENG WANG YU ZHOU QINGHAI SONG Ministry of Industry and Information Technology Key Laboratory of Micro-Nano Optoelectronic Information System Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic SystemsHarbin Institute of TechnologyShenzhen 518055China Pengcheng Laboratory Shenzhen 518055China Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area Shenzhen-Hong Kong International Science and Technology ParkShenzhen 518045China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China College of Physics Sichuan UniversityChengdu 610065China

All-optical thermometry plays a crucial role in precision temperature measurement across diverse *** defects in solids are one of the most promising sensors due to their excellent sensitivity,stability,and ***,it faces limitations,such as the microwave heating effect and the complexity of spectral *** these challenges,we introduce a novel approach to nanoscale optical thermometry using quantum defects in silicon carbide(SiC),a material compatible with complementary metal-oxide-semiconductor(CMOS)*** method leverages the intensity ratio between anti-Stokes and Stokes emissions from SiC color centers,overcoming the drawbacks of traditional techniques such as optically detected magnetic resonance(ODMR)and zero-phonon line(ZPL)*** technique provides a real-time,highly sensitive(1.06%K^(-1)),and diffraction-limited temperature sensing protocol,which potentially helps enhance thermal management in the future miniaturization of electronic components.

关键词： carbide optical centers

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Magnetoelectric Coupling Based on Protons in Ammonium Sulfate

arXiv

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arXiv 2024年

作者： Meng, Lei He, Chen Yen, Fei State Key Laboratory on Tunable Laser Technology Ministry of Industry and Information Technology Key Laboratory of Micro-Nano Optoelectronic Information System The School of Science Harbin Institute of Technology Shenzhen China University Town Guangdong Shenzhen518055 China

Most ferroelectric crystals have their own set of unique characteristics and ammonium sulfate (NH4)2SO4 is no exception. We report on two previously unidentified features in ammonium sulfate: 1) that there are at least two successive transitions instead of one occurring at the Curie temperature TC = 223 K according to dielectric constant measurements;and 2) pronounced step-like anomalies are found in the magnetic susceptibility χ(T) exactly at TC. To explain these results, we take into account that there exists a previously unidentified linear coupling between the magnetic and electric dipole moments of the NH4+ tetrahedra due to their rapid reorientations and distorted geometry, respectively. The magnetic moments are small, 0.0016 μB for every C3 reorientation which involve three protons (H+) undergoing orbital motion. Nevertheless, short-range correlations exist in the paraelectric phase because the magnetic moments are restricted to only point along 14 possible orientations due to the symmetry and periodic nature of the potential wells. At TC, C2 reorientations (involving four protons) are no longer energetically feasible so the reduction in the degrees of freedom to 8 further enhances the effect of the magnetic interactions. This triggers long-range ordering of the orbital moments in an antiferromagnetic configuration along the ab-plane, which via Dzyaloshinskii–Moriya interactions, end up canting slightly toward the c-axis direction. Since there exists two types of inequivalent NH4+ groups that reorient at different frequencies with temperature and do not have the same degree of distortion, the emerging polar phase is ferrielectric. This previously unidentified 'magnetoprotonic' effect can be further extended toward understanding the fundamental causes of the spontaneous polarization in many other ferroelectric crystals as well as provide the missing link toward understanding the enhanced functionalities of many hydrogen-based compounds and organic-inorganic hy

关键词： Sulfur compounds

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Brilliant Green: A long-buried water-soluble AIEgen with nearinfrared fluorescence for living cell actin staining 3

Brilliant Green: A long-buried water-soluble AIEgen with nea...

引用

3rd International Conference on Biomedical and Intelligent systems, IC-BIS 2024

作者： Liu, Luxuan Wu, Yayun Tang, Dongbao Jia, Zhaoyuan Wang, Jiaoli Gong, Ping Fang, Xiaohong Tan, Yuyu Zhang, Pengfei School of Electrical Engineering Hunan Province Key Laboratory for Ultra-Fast Micro/Nano Technology and Advanced Laser Manufacture University of South China Hengyang421001 China Beijing National Research Center for Molecular Sciences Institute of Chemistry Key Laboratory of Molecular Nanostructure and Nanotechnology Chinese Academy of Science Beijing100190 China Guangdong Key Laboratory of Nanomedicine CAS-HK Joint Lab of Biomaterials CAS Key Laboratory of Biomedical Imaging Science and System Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations CAS Key Lab for Health Informatics Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen518055 China

ISBN: (纸本)9781510681279

Observation of actin in cells is crucial for the investigation of cell motility, protein transcription, pathogen infection, and cell cycle research. In this study, we have identified Brilliant Green (BG) as a water-soluble AIEgen (luminogen with aggregation-induced emission properties) that can be utilized for actin staining. Our experimental findings highlight the effectiveness of BG for long-term live cell imaging, as well as its remarkable stability and resistance to photobleaching. © 2024 SPIE.

关键词： Photobleaching

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Magnetic phase transitions in the triangular-lattice spin-1 dimer compound K2Ni2(SeO3)3

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Physical Review B 2024年第21期109卷 214430-214430页

作者： Lei Yue Ziyou Lu Kun Yan Le Wang Shu Guo Ruixin Guo Peng Chen Xiaobin Chen Jia-Wei Mei Department of Physics School of Science and State Key Laboratory on Tunable Laser Technology and Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Shenzhen Institute for Quantum Science and Engineering International Quantum Academy Shenzhen 518048 China Dongguan Guangdong 523808 China Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices

In our study, we conduct magnetization and heat capacity measurements to investigate field-induced magnetic phase transitions within the newly synthesized compound K2Ni2(SeO3)3, a spin-1 dimer system arranged on a triangular lattice. From our first-principles simulations, we determine that the spin system in K2Ni2(SeO3)3 can be represented as a two-dimensional triangular-lattice spin-1 dimer model, including an intra-dimer exchange of J1=0.32meV, an inter-dimer exchange of J2=0.79meV, and an easy-axis anisotropy of D=0.14meV. The presence of easy-axis magnetic anisotropy explains the distinct magnetic phase diagrams observed under c-axis directional and in-plane magnetic fields. Notably, our investigation unveils a two-step phase transition with the magnetic field aligned with the c direction. Our findings yield valuable insights into the magnetic phase transitions inherent to geometrically frustrated magnetic systems featuring dimer structures.

关键词： Frustrated magnetism Magnetic phase transitions Triangular lattice Magnetization measurements Specific heat measurements X-ray diffraction

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A High-Speed Level Shifter with dVs/dt Noise Immunity Enhancement Structure for 200V Monolithic GaN Power IC 35

A High-Speed Level Shifter with dVs/dt Noise Immunity Enhanc...

引用

35th International Symposium on Power Semiconductor Devices and ICs, ISPSD 2023

作者： Zheng, Yifei Yuan, Qing Song, Deyuan Ying, Yutao Zhu, Jing Sun, Weifeng Zhang, Long Li, Sheng Wang, Denggui Zhou, Jianjun Zhang, Sen He, Nailong National Asic System Engineering Research Center Southeast University Nanjing210096 China Nanjing Electronic Devices Institute Science and Technology on Monolithic Integrated Circuits and Modules Laboratory Nanjing210016 China Wuxi Chipown Micro-electronics Limited Wuxi China Csmc Technologies Corporation Technology Development Department Wuxi China

ISBN: (纸本)9798350396829

Monolithic integration has been demonstrated to be an ideal solution to minimize the parasitics in GaN power IC. Nonetheless, the current commercially GaN process for power IC is far less mature and only n-type HEMTs are available. Therefore, it is difficult for high voltage level shifters to achieve high speed. This work implements a level shifter for GaN IC to achieve both small response time and high d VSdt noise immunity without complicated signal processing circuits, thus delay and conduction loss will be minimized. The proposed circuit was fabricated in a $1μm GaN-on-Silicon process and measured results were performed to verify the characteristics. © 2023 IEEE.

关键词： Gallium nitride

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Rapid classification of proteins suspended in an evaporated sessile drop

引用

Talanta 2025年 294卷 128224页

作者： Liu, Maoxi Jiao, Feng He, Yongqing School of Chemical Engineering Kunming University of Science and Technology Kunming650500 China Chongqing Key Laboratory of Micro-Nano System and Intelligent Transduction National Research Base of Intelligent Manufacturing Service Chongqing Technology and Business University Chongqing400067 China

Reliable and accessible technologies for biological sample analysis are crucial for rapid, accurate illness diagnosis in resource-limited settings. Conventional methods like mass spectrometry and enzyme-linked immunosorbent assay (ELISA) often face challenges of technological complexity and equipment immobility, leading to delayed diagnoses and elevated costs. This study introduces evaporative deposition patterns from sessile droplets as a simple, cost-effective approach for classifying proteins in protein-salt mixtures, leveraging quantitative texture analysis to achieve high diagnostic accuracy. Using mixtures of potassium chloride (KCl) or sodium chloride (NaCl) with Bovine Serum Albumin (BSA) or Ovalbumin (OVA) as model systems, we varied salt (0.25–2 wt%) and protein (0.5–1.5 wt%) concentrations, observing distinct deposition morphologies such as coffee rings, cruciform/dendritic crystals at high salt levels, and volcano-shaped /spoke-like patterns at low or high protein levels. A novel quantitative framework integrating radial density distributions, gray-level co-occurrence matrix (GLCM) texture features, and receiver operating characteristic (ROC) curves achieved a 96.74 % classification accuracy for NaCl-protein mixtures, surpassing traditional texture analysis in simplicity and efficacy. These findings demonstrate the potential of evaporative deposition analysis as a simple tool for distinguishing molecular mixtures, laying the groundwork for future diagnostic applications. Unlike prior qualitative studies, this work provides a robust, quantitative method for protein classification, advancing the understanding of protein-salt interactions. © 2025 Elsevier B.V.

关键词： Body fluids

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Mode crossing induced soliton frequency comb generation in high-Q yttria-stabilized zirconia crystalline optical microresonators

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Photonics Research 2022年第3期10卷 731-739页

作者： Guoping Lin Tang Sun Ministry of Industry and Information Technology Key Laboratory of Micro-Nano Optoelectronic Information System School of ScienceHarbin Institute of TechnologyShenzhen 518055China Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

We demonstrate for the first time,to the best of our knowledge,the fabrication of high-Q crystalline optical microresonators from cubic yttria-stabilized zirconia(YSZ).Intrinsic Q factors up to 80 million are obtained,indicating an upper bound absorption coefficient of 0.001cm^(−1) for YSZ crystals at the telecom *** laser-scanned spectroscopy on a few-mode YSZ microresonator with a radius of 300μm,we find that the mode crossing effect in the case of weak coupling can induce a repelling disruption of free spectral range values between transverse mode *** of soliton and soliton crystals in such a YSZ microcomb platform operated in the normal dispersion regime is observed.A breathing comb behavior is also *** finding has enriched comb generation platforms with potential multidisciplinary capabilities linked to properties of YSZ crystals in superconducting films and sensors.

关键词： crystalline soliton mode

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Magnetic interactions based on proton orbital motion in CH3NH3PbI3 and CH3NH3PbBr3

arXiv

引用

arXiv 2024年

作者： Meng, Lei Zhao, Miao Miao Xu, Yi Yang Peng, Chu Xin Yang, Yang Xing, Tian Tian Ren, Peng Yen, Fei Department State Key Laboratory on Tunable Laser Technology Ministry of Industry and Information Technology Key Laboratory Micro-Nano Optoelectronic Information System The School of Science Harbin Institute of Technology Shenzhen. University Town Guangdong Shenzhen518055 China

The microscopic origin of the remarkable optoelectronic properties of one of the most studied contemporary materials remains unclear. Here, we identify the existence of magnetic interactions between intermolecular proton orbitals in CH3NH3PbI3 and CH3NH3PbBr3. In particular, a unique sharp drop and a pronounced step-up discontinuity in the magnetic susceptibility at the tetragonal-to-cubic phase transitions are identified in CH3NH3PbI3 and CH3NH3PbBr3, respectively. The magnetic interactions in the orthorhombic and tetragonal phases are dependent on thermal history and lattice orientation while nearly independent of the applied external magnetic field. In CH3NH3PbBr3, the CH3 and NH3+ components reorient in an uncorrelated fashion resulting the cubic phase to also exhibit magnetic anisotropy. Our findings provide a potential link connecting the highly light-absorbing CH3NH3+ and the exceptional properties of the charge carriers of the inorganic framework in hybrid perovskite solar cells. © 2024, CC BY-NC-ND.

关键词： Perovskite

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