Opto-Electronic Advances最新文献_第2页

Flat multifunctional liquid crystal elements through multi-dimensional information multiplexing 平面多功能液晶元件通过多维信息复用

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.220063

D. Tang, Zhenglong Shao, Xin Xie, Yingjie Zhou, Xiaohu Zhang, F. Fan, S. Wen

引用次数: 9

Broadband and continuous wave pumped second-harmonic generation from microfiber coated with layered GaSe crystal 层状GaSe晶体包覆微光纤产生宽带连续波泵浦二次谐波

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.230012

Zhen Hao, B. Jiang, Yuxin Ma, Ruixuan Yi, Xuetao Gan, Jianlin Zhao

引用次数: 1

Paper-based WS2 photodetectors fabricated by all-dry techniques 全干技术制备的纸基WS2光电探测器

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.230077

F. Pieri, G. Fiori

引用次数: 1

Three-dimensional isotropic microfabrication in glass using spatiotemporal focusing of high-repetition-rate femtosecond laser pulses 利用高重复率飞秒激光脉冲的时空聚焦在玻璃中进行三维各向同性微加工

1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.230066

Yuanxin Tan, Haotian Lv, Jian Xu, Aodong Zhang, Yunpeng Song, Jianping Yu, Wei Chen, Yuexin Wan, Zhaoxiang Liu, Zhaohui Liu, Jia Qi, Yangjian Cai, Ya Cheng

{"title":"Three-dimensional isotropic microfabrication in glass using spatiotemporal focusing of high-repetition-rate femtosecond laser pulses","authors":"Yuanxin Tan, Haotian Lv, Jian Xu, Aodong Zhang, Yunpeng Song, Jianping Yu, Wei Chen, Yuexin Wan, Zhaoxiang Liu, Zhaohui Liu, Jia Qi, Yangjian Cai, Ya Cheng","doi":"10.29026/oea.2023.230066","DOIUrl":"https://doi.org/10.29026/oea.2023.230066","url":null,"abstract":"To improve the processing efficiency and extend the tuning range of 3D isotropic fabrication, we apply the simultaneous spatiotemporal focusing (SSTF) technique to a high-repetition-rate femtosecond (fs) fiber laser system. In the SSTF scheme, we propose a pulse compensation scheme for the fiber laser with a narrow spectral bandwidth by building an extra-cavity pulse stretcher. We further demonstrate truly 3D isotropic microfabrication in photosensitive glass with a tunable resolution ranging from 8 µm to 22 µm using the SSTF of fs laser pulses. Moreover, we systematically investigate the influences of pulse energy, writing speed, processing depth, and spherical aberration on the fabrication resolution. As a proof-of-concept demonstration, the SSTF scheme was further employed for the fs laser-assisted etching of complicated glass microfluidic structures with 3D uniform sizes. The developed technique can be extended to many applications such as advanced photonics, 3D biomimetic printing, micro-electromechanical systems, and lab-on-a-chips.","PeriodicalId":19611,"journal":{"name":"Opto-Electronic Advances","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135496321","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

Broadband all-fiber optical phase modulator based on photo-thermal effect in a gas-filled hollow-core fiber 基于光热效应的宽带全光纤空芯充气光纤相位调制器

IF 14.1 1区物理与天体物理

Opto-Electronic Advances Pub Date : 2023-01-01 DOI: 10.29026/oea.2023.220085

Shoulin Jiang, Feifan Chen, Yan Zhao, Shou-fei Gao, Ying‐ying Wang, H. Ho, W. Jin

引用次数: 5

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

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":null,"pages":null},"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

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":null,"pages":null},"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

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":null,"pages":null},"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