Advanced Photonics Nexus最新文献_第7页

Deep-learning-assisted inverse design of dual-spin/frequency metasurface for quad-channel off-axis vortices multiplexing 深度学习辅助四通道离轴涡旋复用双自旋/频率超表面反设计

Advanced Photonics Nexus Pub Date : 2023-01-01 DOI: 10.1117/1.APN.2.1.016010

Kai Qu, Ke Chen, Q. Hu, Junming Zhao, T. Jiang, Yijun Feng

{"title":"Deep-learning-assisted inverse design of dual-spin/frequency metasurface for quad-channel off-axis vortices multiplexing","authors":"Kai Qu, Ke Chen, Q. Hu, Junming Zhao, T. Jiang, Yijun Feng","doi":"10.1117/1.APN.2.1.016010","DOIUrl":"https://doi.org/10.1117/1.APN.2.1.016010","url":null,"abstract":"Abstract. Recently, the metasurfaces for independently controlling the wavefront and amplitude of two orthogonal circularly polarized electromagnetic (EM) waves have been demonstrated to open a way toward spin-multiplexing compact metadevices. However, these metasurfaces are mostly restricted to a single operation frequency band. The main challenge to achieving multiple frequency manipulations stems from the complicated and time-consuming design caused by multifrequency cross talk. To solve this problem, we propose a deep-learning-assisted inverse design method for designing a dual-spin/frequency metasurface with flexible multiplexing of off-axis vortices. By analyzing the cross talk between different spin/frequency channels based on the deep-learning method, we established the internal mapping relationship between the physical parameters of a meta-atom and its phase responses in multichannels, realizing the rapid inverse design of the spin/frequency multiplexing EM device. As a proof of concept, we demonstrated in the microwave region a dual-frequency arbitrary spin-to-orbit angular momentum converter, a dual-frequency off-axis vector vortex multiplexer, and a large-capacity (16-channel) vortex beam generator. The proposed method may provide a compact and efficient platform for the multiplexing of vortices, which may further stimulate their applications in wireless communication and quantum information science.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"5 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":"114945997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

About the cover: Advanced Photonics Nexus Volume 2, Issue 1 关于封面:先进光子Nexus卷2，第1期

Advanced Photonics Nexus Pub Date : 2023-01-01 DOI: 10.1117/1.APN.2.1.019901

Hua-Ying Liu, Minghao Shang, Xiaoyi Liu, Ying Wei, Minghao Mi, Lijian Zhang, Yan-Xiao Gong

引用次数: 0

Characterization of multimode linear optical networks 多模线性光网络的特性

Advanced Photonics Nexus Pub Date : 2023-01-01 DOI: 10.1117/1.APN.2.1.016007

Francesco Hoch, Taira Giordani, N. Spagnolo, A. Crespi, R. Osellame, F. Sciarrino

{"title":"Characterization of multimode linear optical networks","authors":"Francesco Hoch, Taira Giordani, N. Spagnolo, A. Crespi, R. Osellame, F. Sciarrino","doi":"10.1117/1.APN.2.1.016007","DOIUrl":"https://doi.org/10.1117/1.APN.2.1.016007","url":null,"abstract":"Abstract. Multimode optical interferometers represent the most viable platforms for the successful implementation of several quantum information schemes that take advantage of optical processing. Examples range from quantum communication and sensing, to computation, including optical neural networks, optical reservoir computing, or simulation of complex physical systems. The realization of such routines requires high levels of control and tunability of the parameters that define the operations carried out by the device. This requirement becomes particularly crucial in light of recent technological improvements in integrated photonic technologies, which enable the implementation of progressively larger circuits embedding a considerable amount of tunable parameters. We formulate efficient procedures for the characterization of optical circuits in the presence of imperfections that typically occur in physical experiments, such as unbalanced losses and phase instabilities in the input and output collection stages. The algorithm aims at reconstructing the transfer matrix that represents the optical interferometer without making any strong assumptions about its internal structure and encoding. We show the viability of this approach in an experimentally relevant scenario, defined by a tunable integrated photonic circuit, and we demonstrate the effectiveness and robustness of our method. Our findings can find application in a wide range of optical setups, based on both bulk and integrated configurations.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"4 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":"125595243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Ultrafast optical phase-sensitive ultrasonic detection via dual-comb multiheterodyne interferometry 基于双梳多外差干涉的超快光学相敏超声检测

Advanced Photonics Nexus Pub Date : 2022-12-06 DOI: 10.1117/1.APN.2.1.016002

Yitian Tong, Xudong Guo, Mingsheng Li, Huajun Tang, Najia Sharmin, Yue Xu, Wei-Ning Lee, K. Tsia, Kenneth K. Y. Wong

{"title":"Ultrafast optical phase-sensitive ultrasonic detection via dual-comb multiheterodyne interferometry","authors":"Yitian Tong, Xudong Guo, Mingsheng Li, Huajun Tang, Najia Sharmin, Yue Xu, Wei-Ning Lee, K. Tsia, Kenneth K. Y. Wong","doi":"10.1117/1.APN.2.1.016002","DOIUrl":"https://doi.org/10.1117/1.APN.2.1.016002","url":null,"abstract":"Abstract. Highly sensitive and broadband ultrasound detection is important for photoacoustic imaging, biomedical ultrasound, and ultrasonic nondestructive testing. The elasto-optical refractive index modulation induced by ultrasound arouses a transient phase shift of a probe beam. Highly sensitive phase detection with a high Q factor resonator is desirable to visualize the ultraweak transient ultrasonic field. However, current phase-sensitive ultrasonic detectors suffer from limited bandwidth, mutual interference between intensity and phase, and significant phase noise, which become key to limiting further improvement of detection performance. We report a phase-sensitive detector with a bandwidth of up to 100 MHz based on dual-comb multiheterodyne interferometry (DCMHI). By sensing the phase shift induced by the ultrasound without any resonators in the medium, the DCMHI boosted the phase sensitivity by coherent accumulation without any magnitude averaging and extra radio frequency amplification. DCMHI offers high sensitivity and broad bandwidth as the noise-equivalent pressure reaches 31 mPa / √Hz under 70 MHz acoustic responses. With a large repetition rate difference of up to 200 MHz of dual comb, DCMHI can achieve broadband acoustic responses up to 100 MHz and a maximum possible imaging acquisition rate of 200 MHz. It is expected that DCMHI can offer a new perspective on the new generation of optical ultrasound detectors.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130430816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Laterally swept light-sheet microscopy enhanced by pixel reassignment for photon-efficient volumetric imaging 通过像素重新分配增强的横向扫描光片显微镜用于光子效率的体积成像

Advanced Photonics Nexus Pub Date : 2022-12-05 DOI: 10.1117/1.APN.2.1.016001

Liang Qiao, Hongjin Li, Suyi Zhong, Xinzhu Xu, Fei Su, Xi Peng, D. Jin, Karl Zhanghao

{"title":"Laterally swept light-sheet microscopy enhanced by pixel reassignment for photon-efficient volumetric imaging","authors":"Liang Qiao, Hongjin Li, Suyi Zhong, Xinzhu Xu, Fei Su, Xi Peng, D. Jin, Karl Zhanghao","doi":"10.1117/1.APN.2.1.016001","DOIUrl":"https://doi.org/10.1117/1.APN.2.1.016001","url":null,"abstract":"Abstract. In light-sheet fluorescence microscopy, the axial resolution and field of view are mutually constrained. Axially swept light-sheet microscopy (ASLM) can decouple the trade-off, but the confocal detection scheme using a rolling shutter also rejects fluorescence signals from the specimen in the field of interest, which sacrifices the photon efficiency. Here, we report a laterally swept light-sheet microscopy (LSLM) scheme in which the focused beam is first scanned along the axial direction and subsequently laterally swept with the rolling shutter. We show that LSLM can obtain a higher photon efficiency when similar axial resolution and field of view can be achieved. Moreover, based on the principle of image scanning microscopy, applying the pixel reassignment to the LSLM images, hereby named iLSLM, improves the optical sectioning. Both simulation and experimental results demonstrate the higher photon efficiency with similar axial resolution and optical sectioning. Our proposed scheme is suitable for volumetric imaging of specimens that are susceptible to photobleaching or phototoxicity.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126912745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Realization of advanced passive silicon photonic devices with subwavelength grating structures developed by efficient inverse design 基于高效反设计的亚波长光栅结构先进无源硅光子器件的实现

Advanced Photonics Nexus Pub Date : 2022-12-02 DOI: 10.1117/1.APN.2.2.026005

Jingshu Guo, Laiwen Yu, Hengtai Xiang, Yuqi Zhao, Chaoyue Liu, D. Dai

{"title":"Realization of advanced passive silicon photonic devices with subwavelength grating structures developed by efficient inverse design","authors":"Jingshu Guo, Laiwen Yu, Hengtai Xiang, Yuqi Zhao, Chaoyue Liu, D. Dai","doi":"10.1117/1.APN.2.2.026005","DOIUrl":"https://doi.org/10.1117/1.APN.2.2.026005","url":null,"abstract":"Abstract. Compact passive silicon photonic devices with high performance are always desired for future large-scale photonic integration. Inverse design provides a promising approach to realize new-generation photonic devices, while it is still very challenging to realize complex photonic devices for most inverse designs reported previously due to the limits of computational resources. Here, we present the realization of several representative advanced passive silicon photonic devices with complex optimization, including a six-channel mode (de)multiplexer, a broadband 90 deg hybrid, and a flat-top wavelength demultiplexer. These devices are designed inversely by optimizing a subwavelength grating (SWG) region and the multimode excitation and the multimode interference are manipulated. Particularly, such SWG structures are more fabrication-friendly than those random nanostructures introduced in previous inverse designs. The realized photonic devices have decent performances in a broad bandwidth with a low excess loss of <1 dB, which is much lower than that of previous inverse-designed devices. The present inverse design strategy shows great effectiveness for designing advanced photonic devices with complex requirements (which is beyond the capability of previous inverse designs) by using affordable computational resources.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129846262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Recent advances in photonics of three-dimensional Dirac semimetal Cd3As2 三维Dirac半金属Cd3As2的光子学研究进展

Advanced Photonics Nexus Pub Date : 2022-11-01 DOI: 10.1117/1.APN.1.2.024001

Renlong Zhou, K. Ullah, Naveed Hussain, Mohammed M. Fadhali, Sa Yang, Qiawu Lin, Muhammad Zubair, M. Iqbal

{"title":"Recent advances in photonics of three-dimensional Dirac semimetal Cd3As2","authors":"Renlong Zhou, K. Ullah, Naveed Hussain, Mohammed M. Fadhali, Sa Yang, Qiawu Lin, Muhammad Zubair, M. Iqbal","doi":"10.1117/1.APN.1.2.024001","DOIUrl":"https://doi.org/10.1117/1.APN.1.2.024001","url":null,"abstract":"Abstract. Due to their unusual features in condensed matter physics and their applicability in optical and optoelectronic applications, three-dimensional Dirac semimetals (3D DSMs) have garnered substantial interest in recent years. In contrast to monolayer graphene, 3D DSM exhibits linear band dispersion despite its macroscopic thickness. Therefore, being a bulk material, it is easy to make nanostructures with 3D DSM, just as one normally does with metals such as gold and silver. Among 3D DSMs, cadmium arsenide (Cd3As2) is quite famous and considered an excellent 3D DSM due to its chemical stability in air and extraordinary optical response. In this review, advances in 3D DSM Cd3As2 fabrication techniques and recent progress in the photonics of 3D DSM Cd3As2 are given and briefly reviewed. Various photonic features, including linear and nonlinear plasmonics, optical absorption, optical harmonic generation, and ultrafast dynamics, have been explored in detail. It is expected that Cd3As2 would share an excellent tunable photonic response like graphene. We envision that this article may serve as a concise overview of the recent progress of photonics in 3D DSM Cd3As2 and provides a compact reference for young researchers.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124804528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Light-induced vacuum micromotors based on an antimony telluride microplate 基于碲化锑微孔板的光致真空微电机

Advanced Photonics Nexus Pub Date : 2022-11-01 DOI: 10.1117/1.APN.1.2.026005

Weiwei Tang, Qiannan Jia, Yong Wang, Ding Zhao, Weizhong Lyu, Wei Yan, Min Qiu

{"title":"Light-induced vacuum micromotors based on an antimony telluride microplate","authors":"Weiwei Tang, Qiannan Jia, Yong Wang, Ding Zhao, Weizhong Lyu, Wei Yan, Min Qiu","doi":"10.1117/1.APN.1.2.026005","DOIUrl":"https://doi.org/10.1117/1.APN.1.2.026005","url":null,"abstract":"Abstract. Manipulating motion of microobjects with light is indispensable in various technologies. On solid interfaces, its realizations, however, are hampered by surface friction. To resolve this difficulty, light-induced elastic waves have been recently proposed to drive microobjects against friction. Despite its expected applicability for arbitrary optical-absorptive objects, the new principle has only been tested with microsized gold plates. Herein, we validate this principle using a new material and report directional and continuous movements of a two-dimensional topological insulator (Sb2Te3) plate on an untreated microfiber surface driven by nanosecond laser pulses. The motion performance of the Sb2Te3 plate is characterized by a scanning electron microscope. We observe that the motion velocity can be controlled by tuning the average power of laser pulses. Further, by intentionally increasing the pulse repetition rate and exploiting the low thermal conductivity of Sb2Te3, we examine the thermal effects on actuation and reveal the motion instability induced by formations of microbumps on Sb2Te3 surfaces due to the Marangoni effects. Moreover, as the formed microbumps are heated to viscoelasticity states, liquid-like motion featuring asymmetry in contact angles is observed and characterized, which expands the scope of light-induced actuation of microobjects.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116976755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

About the cover: Advanced Photonics Nexus Volume 1, Issue 2 关于封面:先进光子Nexus卷1，第2期

Advanced Photonics Nexus Pub Date : 2022-11-01 DOI: 10.1117/1.APN.1.2.029901

Yu Chen, Yang Li, Wenhao Tang, Yutao Tang, Yue Hu, Zixian Hu, Junhong Deng, K. Cheah, Gui-Jun Li

引用次数: 0

Nanochannels with a 18-nm feature size and ultrahigh aspect ratio on silica through surface assisting material ejection 通过表面辅助材料喷射在二氧化硅上形成具有18nm特征尺寸和超高纵横比的纳米通道

Advanced Photonics Nexus Pub Date : 2022-11-01 DOI: 10.1117/1.APN.1.2.026004

Yu Lu, Lin Kai, Caiyi Chen, Qing Yang, Yizhao Meng, Yi Liu, Yang Cheng, Xun Hou, F. Chen

引用次数: 3