Opto-Electronic Advances最新文献_第3页

Solvent-free fabrication of broadband WS2 photodetectors on paper 纸上宽带WS2光电探测器的无溶剂制备

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.220101

Wenliang Zhang, O. Çakıroğlu, A. Al-Enizi, A. Nafady, Xuetao Gan, Xiaohua Ma, Sruthi Kuriakose, Yong Xie, A. Castellanos-Gomez

引用次数: 3

Deep-red and near-infrared organic lasers based on centrosymmetric molecules with excited-state intramolecular double proton transfer activity 基于具有激发态分子内双质子转移活性的中心对称分子的深红色和近红外有机激光器

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.230007

Chang-Cun Yan, Zong-Lu Che, Wanting Yang, Xue‐Dong Wang, Liang Liao

引用次数: 2

Photonic integrated neuro-synaptic core for convolutional spiking neural network 卷积脉冲神经网络的光子集成神经突触核

1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.230140

Shuiying Xiang, Yuechun Shi, Yahui Zhang, Xingxing Guo, Ling Zheng, Yanan Han, Yuna Zhang, Ziwei Song, Dianzhuang Zheng, Tao Zhang, Hailing Wang, Xiaojun Zhu, Xiangfei Chen, Min Qiu, Yichen Shen, Wanhua Zheng, Yue Hao

{"title":"Photonic integrated neuro-synaptic core for convolutional spiking neural network","authors":"Shuiying Xiang, Yuechun Shi, Yahui Zhang, Xingxing Guo, Ling Zheng, Yanan Han, Yuna Zhang, Ziwei Song, Dianzhuang Zheng, Tao Zhang, Hailing Wang, Xiaojun Zhu, Xiangfei Chen, Min Qiu, Yichen Shen, Wanhua Zheng, Yue Hao","doi":"10.29026/oea.2023.230140","DOIUrl":"https://doi.org/10.29026/oea.2023.230140","url":null,"abstract":"Neuromorphic photonic computing has emerged as a competitive computing paradigm to overcome the bottlenecks of the von-Neumann architecture. Linear weighting and nonlinear spike activation are two fundamental functions of a photonic spiking neural network (PSNN). However, they are separately implemented with different photonic materials and devices, hindering the large-scale integration of PSNN. Here, we propose, fabricate and experimentally demonstrate a photonic neuro-synaptic chip enabling the simultaneous implementation of linear weighting and nonlinear spike activation based on a distributed feedback (DFB) laser with a saturable absorber (DFB-SA). A prototypical system is experimentally constructed to demonstrate the parallel weighted function and nonlinear spike activation. Furthermore, a four-channel DFB-SA laser array is fabricated for realizing matrix convolution of a spiking convolutional neural network, achieving a recognition accuracy of 87% for the MNIST dataset. The fabricated neuro-synaptic chip offers a fundamental building block to construct the large-scale integrated PSNN chip.","PeriodicalId":19611,"journal":{"name":"Opto-Electronic Advances","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135662668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Third-harmonic generation and imaging with resonant Si membrane metasurface 谐振硅膜超表面的三次谐波产生与成像

1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.220174

Ze Zheng, Lei Xu, Lujun Huang, Daria Smirnova, Khosro Zangeneh Kamali, Arman Yousefi, Fu Deng, Rocio Camacho-Morales, Cuifeng Ying, Andrey E. Miroshnichenko, Dragomir N. Neshev, Mohsen Rahmani

{"title":"Third-harmonic generation and imaging with resonant Si membrane metasurface","authors":"Ze Zheng, Lei Xu, Lujun Huang, Daria Smirnova, Khosro Zangeneh Kamali, Arman Yousefi, Fu Deng, Rocio Camacho-Morales, Cuifeng Ying, Andrey E. Miroshnichenko, Dragomir N. Neshev, Mohsen Rahmani","doi":"10.29026/oea.2023.220174","DOIUrl":"https://doi.org/10.29026/oea.2023.220174","url":null,"abstract":"Dielectric metasurfaces play an increasingly important role in enhancing optical nonlinear generations owing to their ability to support strong light-matter interactions based on Mie-type multipolar resonances. Compared to metasurfaces composed of the periodic arrangement of nanoparticles, inverse, so-called, membrane metasurfaces offer unique possibilities for supporting multipolar resonances, while maintaining small unit cell size, large mode volume and high field enhancement for enhancing nonlinear frequency conversion. Here, we theoretically and experimentally investigate the formation of bound states in the continuum (BICs) from silicon dimer-hole membrane metasurfaces. We demonstrate that our BIC-formed resonance features a strong and tailorable electric near-field confinement inside the silicon membrane films. Furthermore, we show that by tuning the gap between the holes, one can open a leaky channel to transform these regular BICs into quasi-BICs, which can be excited directly under normal plane wave incidence. To prove the capabilities of such metasurfaces, we demonstrate the conversion of an infrared image to the visible range, based on the Third-harmonic generation (THG) process with the resonant membrane metasurfaces. Our results suggest a new paradigm for realising efficient nonlinear photonics metadevices and hold promise for extending the applications of nonlinear structuring surfaces to new types of all-optical near-infrared imaging technologies.","PeriodicalId":19611,"journal":{"name":"Opto-Electronic Advances","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136008738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Ferroelectrically modulate the Fermi level of graphene oxide to enhance SERS response 铁电调制氧化石墨烯的费米能级以增强SERS响应

1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.230094

Mingrui Shao, Chang Ji, Jibing Tan, Baoqiang Du, Xiaofei Zhao, Jing Yu, Baoyuan Man, Kaichen Xu, Chao Zhang, Zhen Li

{"title":"Ferroelectrically modulate the Fermi level of graphene oxide to enhance SERS response","authors":"Mingrui Shao, Chang Ji, Jibing Tan, Baoqiang Du, Xiaofei Zhao, Jing Yu, Baoyuan Man, Kaichen Xu, Chao Zhang, Zhen Li","doi":"10.29026/oea.2023.230094","DOIUrl":"https://doi.org/10.29026/oea.2023.230094","url":null,"abstract":"Surface-enhanced Raman scattering (SERS) substrates based on chemical mechanism (CM) have received widespread attentions for the stable and repeatable signal output due to their excellent chemical stability, uniform molecular adsorption and controllable molecular orientation. However, it remains huge challenges to achieve the optimal SERS signal for diverse molecules with different band structures on the same substrate. Herein, we demonstrate a graphene oxide (GO) energy band regulation strategy through ferroelectric polarization to facilitate the charge transfer process for improving SERS activity. The Fermi level (<italic>E</italic><sub>f</sub>) of GO can be flexibly manipulated by adjusting the ferroelectric polarization direction or the temperature of the ferroelectric substrate. Experimentally, kelvin probe force microscopy (KPFM) is employed to quantitatively analyze the <italic>E</italic><sub>f</sub> of GO. Theoretically, the density functional theory calculations are also performed to verify the proposed modulation mechanism. Consequently, the SERS response of probe molecules with different band structures (R6G, CV, MB, PNTP) can be improved through polarization direction or temperature changes without the necessity to redesign the SERS substrate. This work provides a novel insight into the SERS substrate design based on CM and is expected to be applied to other two-dimensional materials.","PeriodicalId":19611,"journal":{"name":"Opto-Electronic Advances","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135784431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

High-resolution visible imaging with piezoelectric deformable secondary mirror: experimental results at the 1.8-m adaptive telescope 压电变形副镜高分辨率可见光成像:1.8 m自适应望远镜实验结果

1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.230039

Youming Guo, Kele Chen, Jiahui Zhou, Zhengdai Li, Wenyu Han, Xuejun Rao, Hua Bao, Jinsheng Yang, Xinlong Fan, Changhui Rao

{"title":"High-resolution visible imaging with piezoelectric deformable secondary mirror: experimental results at the 1.8-m adaptive telescope","authors":"Youming Guo, Kele Chen, Jiahui Zhou, Zhengdai Li, Wenyu Han, Xuejun Rao, Hua Bao, Jinsheng Yang, Xinlong Fan, Changhui Rao","doi":"10.29026/oea.2023.230039","DOIUrl":"https://doi.org/10.29026/oea.2023.230039","url":null,"abstract":"Integrating deformable mirrors within the optical train of an adaptive telescope was one of the major innovations in astronomical observation technology, distinguished by its high optical throughput, reduced optical surfaces, and the incorporation of the deformable mirror. Typically, voice-coil actuators are used, which require additional position sensors, internal control electronics, and cooling systems, leading to a very complex structure. Piezoelectric deformable secondary mirror technologies were proposed to overcome these problems. Recently, a high-order piezoelectric deformable secondary mirror has been developed and installed on the 1.8-m telescope at Lijiang Observatory in China to make it an adaptive telescope. The system consists of a 241-actuator piezoelectric deformable secondary mirror, a 192-sub-aperture Shack-Hartmann wavefront sensor, and a multi-core-based real-time controller. The actuator spacing of the PDSM measures 19.3 mm, equivalent to approximately 12.6 cm when mapped onto the primary mirror, significantly less than the voice-coil-based adaptive telescopes such as LBT, Magellan and VLT. As a result, stellar images with Strehl ratios above 0.49 in the R band have been obtained. To our knowledge, these are the highest R band images captured by an adaptive telescope with deformable secondary mirrors. Here, we report the system description and on-sky performance of this adaptive telescope.","PeriodicalId":19611,"journal":{"name":"Opto-Electronic Advances","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135008731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep learning enhanced NIR-II volumetric imaging of whole mice vasculature 深度学习增强了全鼠血管的NIR-II体积成像

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.220105

Sitong Wu, Zhichao Yang, Chenguang Ma, Xun Zhang, Chao Mi, Jiajia Zhou, Z. Guo, D. Jin

引用次数: 1

Tailoring spatiotemporal dynamics of plasmonic vortices 等离子体涡旋的时空动态裁剪

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.220133

Xinyao Yuan, Quan Xu, Yuanhao Lang, Xiaohan Jiang, Yuehong Xu, Xieyu Chen, Jie Han, Xueqian Zhang, Jiaguang Han, Weili Zhang

引用次数: 5

Laser direct writing of Ga2O3/liquid metal-based flexible humidity sensors 激光直写Ga2O3/液态金属柔性湿度传感器