Advanced Photonics最新文献_第7页

Advanced Photonics: serving optical sciences and scientists 先进光子学:服务于光学科学和科学家

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2023-02-28 DOI: 10.1117/1.ap.5.1.010101

A. Zayats, Xiaocong Yuan

引用次数: 0

Integrated-resonant metadevices: a review 集成谐振元器件：综述

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2023-02-22 DOI: 10.1117/1.AP.5.2.024001

J. Yao, Rong Lin, M. Chen, D. Tsai

引用次数: 5

Intracavity spatiotemporal metasurfaces 腔内时空超表面

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2023-02-22 DOI: 10.1117/1.AP.5.2.026002

Wenhe Jia, Chenxin Gao, Yongmin Zhao, Liu Li, Shun Wen, Shuai Wang, C. Bao, C. Jiang, Changxi Yang, Yuanmu Yang

{"title":"Intracavity spatiotemporal metasurfaces","authors":"Wenhe Jia, Chenxin Gao, Yongmin Zhao, Liu Li, Shun Wen, Shuai Wang, C. Bao, C. Jiang, Changxi Yang, Yuanmu Yang","doi":"10.1117/1.AP.5.2.026002","DOIUrl":"https://doi.org/10.1117/1.AP.5.2.026002","url":null,"abstract":"Abstract. Optical metasurfaces are endowed with unparallel flexibility to manipulate the light field with a subwavelength spatial resolution. Coupling metasurfaces to materials with strong optical nonlinearity may allow ultrafast spatiotemporal light field modulation. However, most metasurfaces demonstrated thus far are linear devices. Here, we experimentally demonstrate simultaneous spatiotemporal laser mode control using a single-layer plasmonic metasurface strongly coupled to an epsilon-near-zero (ENZ) material within a fiber laser cavity. While the geometric phase of the metasurface is utilized to convert the laser’s transverse mode from a Gaussian beam to a vortex beam carrying orbital angular momentum, the giant nonlinear saturable absorption of the ENZ material enables pulsed laser generation via the Q-switching process. The direct integration of a spatiotemporal metasurface in a laser cavity may pave the way for the development of miniaturized laser sources with tailored spatial and temporal profiles, which can be useful for numerous applications, such as superresolution imaging, high-density optical storage, and three-dimensional laser lithography.","PeriodicalId":33241,"journal":{"name":"Advanced Photonics","volume":"5 1","pages":"026002 - 026002"},"PeriodicalIF":17.3,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46180225","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: 7

Gradient defects mediate negative thermal quenching in phosphors 梯度缺陷介导荧光粉的负热猝灭

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2023-02-14 DOI: 10.1117/1.AP.5.2.026001

Mingxue Deng, Xingzhong Cao, Yangmin Tang, Zhenzhen Zhou, Lijia Liu, Xiaofeng Liu, Peng Zhang, Lo-Yueh Chang, H. Ruan, Xinjun Guo, Jiacheng Wang, Qian Liu

{"title":"Gradient defects mediate negative thermal quenching in phosphors","authors":"Mingxue Deng, Xingzhong Cao, Yangmin Tang, Zhenzhen Zhou, Lijia Liu, Xiaofeng Liu, Peng Zhang, Lo-Yueh Chang, H. Ruan, Xinjun Guo, Jiacheng Wang, Qian Liu","doi":"10.1117/1.AP.5.2.026001","DOIUrl":"https://doi.org/10.1117/1.AP.5.2.026001","url":null,"abstract":"Abstract. Luminescent materials often suffer from thermal quenching (TQ), limiting the continuation of their applications under high temperatures up to 473 K. The formation of defect levels could suppress TQ, but rational synthesis and deep understanding of multiple defects-regulated luminescent materials working in such a wide temperature range still remain challenging. Here, we prepare a negative thermal quenching (NTQ) phosphor LiTaO3 : Tb3 + by introducing gradient defects VTa5−, TbLi2+, and ( VTaTbLi)3 − as identified by advanced experimental and theoretical studies. Its photoluminescence significantly becomes intense with rising temperatures and then slowly increases at 373 to 473 K. The mechanism studies reveal that gradient defects with varied trapping depths could act as energy buffer layers to effectively capture the carriers. Under thermal disturbance, the stored carriers could successively migrate to the activators in consecutive and wide temperature zones, compensating for TQ to enhance luminescence emission. This study initiates the synthesis of multi-defect NTQ phosphors for temperature-dependent applications.","PeriodicalId":33241,"journal":{"name":"Advanced Photonics","volume":"5 1","pages":"026001 - 026001"},"PeriodicalIF":17.3,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43832878","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

Rydberg state excitation in molecules manipulated by bicircular two-color laser pulses 双色激光脉冲操纵分子中的里德堡态激发

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2023-01-01 DOI: 10.1117/1.AP.5.1.016002

Wenbin Zhang, Yongzhe Ma, Chenxu Lu, Fei Chen, Shengzhe Pan, P. Lu, H. Ni, Jian Wu

{"title":"Rydberg state excitation in molecules manipulated by bicircular two-color laser pulses","authors":"Wenbin Zhang, Yongzhe Ma, Chenxu Lu, Fei Chen, Shengzhe Pan, P. Lu, H. Ni, Jian Wu","doi":"10.1117/1.AP.5.1.016002","DOIUrl":"https://doi.org/10.1117/1.AP.5.1.016002","url":null,"abstract":"Abstract. Multiphoton resonant excitation and frustrated tunneling ionization, manifesting the photonic and optical nature of the driving light via direct excitation and electron recapture, respectively, are complementary mechanisms to access Rydberg state excitation (RSE) of atoms and molecules in an intense laser field. However, clear identification and manipulation of their individual contributions in the light-induced RSE process remain experimentally challenging. Here, we bridge this gap by exploring the dissociative and nondissociative RSE of H2 molecules using bicircular two-color laser pulses. Depending on the relative field strength and polarization helicity of the two colors, the RSE probability can be boosted by more than one order of magnitude by exploiting the laser waveform-dependent field effect. The role of the photon effect is readily strengthened with increasing relative strength of the second-harmonic field of the two colors regardless of the polarization helicity. As compared to the nondissociative RSE forming H2 * , the field effect in producing the dissociative RSE channel of ( H + , H * ) is moderately suppressed, which is primarily accessed via a three-step sequential process separated by molecular bond stretching. Our work paves the way toward a comprehensive understanding of the interplay of the underlying field and photon effects in the strong-field RSE process, as well as facilitating the generation of Rydberg states optimized with tailored characteristics.","PeriodicalId":33241,"journal":{"name":"Advanced Photonics","volume":"5 1","pages":"016002 - 016002"},"PeriodicalIF":17.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42378746","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

Rapid crystallization-driven high-efficiency phase-pure deep-blue Ruddlesden–Popper perovskite light-emitting diodes 快速结晶驱动的高效相纯深蓝色Ruddlesden-Popper钙钛矿发光二极管

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2023-01-01 DOI: 10.1117/1.AP.5.1.016001

G. Jang, Hyowon Han, Sunihl Ma, Junwoo Lee, Chang Uk Lee, Woo-Yang Jeong, J. Son, Dongki Cho, Ji‐Hee Kim, Cheolmin Park, Jooho Moon

{"title":"Rapid crystallization-driven high-efficiency phase-pure deep-blue Ruddlesden–Popper perovskite light-emitting diodes","authors":"G. Jang, Hyowon Han, Sunihl Ma, Junwoo Lee, Chang Uk Lee, Woo-Yang Jeong, J. Son, Dongki Cho, Ji‐Hee Kim, Cheolmin Park, Jooho Moon","doi":"10.1117/1.AP.5.1.016001","DOIUrl":"https://doi.org/10.1117/1.AP.5.1.016001","url":null,"abstract":"Abstract. Perovskite light-emitting diodes (PeLEDs) are considered as promising candidates for next-generation solution-processed full-color displays. However, the external quantum efficiencies (EQEs) and operational stabilities of deep-blue (<460 nm) PeLEDs still lag far behind their red and green counterparts. Herein, a rapid crystallization method based on hot-antisolvent bathing is proposed for realization of deep-blue PeLEDs. By promoting immediate removal of the precursor solvent from the wet perovskite films, development of the quasi-two-dimensional (2D) Ruddlesden–Popper perovskite (2D-RPP) crystals with n values >3 is hampered completely, so that phase-pure 2D-RPP films with bandgaps suitable for deep-blue PeLEDs can be obtained successfully. The uniquely developed rapid crystallization method also enables formation of randomly oriented 2D-RPP crystals, thereby improving the transfer and transport kinetics of the charge carriers. Thus, high-performance deep-blue PeLEDs emitting at 437 nm with a peak EQE of 0.63% are successfully demonstrated. The color coordinates are confirmed to be (0.165, 0.044), which match well with the Rec.2020 standard blue gamut and have excellent spectral stability.","PeriodicalId":33241,"journal":{"name":"Advanced Photonics","volume":"5 1","pages":"016001 - 016001"},"PeriodicalIF":17.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44553632","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: 4

About the cover: Advanced Photonics Volume 5, Issue 1 关于封面:先进光子学卷5，第1期

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2023-01-01 DOI: 10.1117/1.AP.5.1.019901

Hai-Jung Wu, Chunyu Li, Zhihan Zhu

引用次数: 0

Neuromorphic silicon photonics with 50 GHz tiled matrix multiplication for deep-learning applications 神经形态硅光子学与50 GHz平铺矩阵乘法深度学习应用

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2023-01-01 DOI: 10.1117/1.AP.5.1.016004

G. Giamougiannis, A. Tsakyridis, M. Moralis‐Pegios, G. Mourgias-Alexandris, A. Totović, G. Dabos, M. Kirtas, N. Passalis, A. Tefas, D. Kalavrouziotis, D. Syrivelis, P. Bakopoulos, E. Mentovich, David Lazovsky, N. Pleros

{"title":"Neuromorphic silicon photonics with 50 GHz tiled matrix multiplication for deep-learning applications","authors":"G. Giamougiannis, A. Tsakyridis, M. Moralis‐Pegios, G. Mourgias-Alexandris, A. Totović, G. Dabos, M. Kirtas, N. Passalis, A. Tefas, D. Kalavrouziotis, D. Syrivelis, P. Bakopoulos, E. Mentovich, David Lazovsky, N. Pleros","doi":"10.1117/1.AP.5.1.016004","DOIUrl":"https://doi.org/10.1117/1.AP.5.1.016004","url":null,"abstract":"Abstract. The explosive volume growth of deep-learning (DL) applications has triggered an era in computing, with neuromorphic photonic platforms promising to merge ultra-high speed and energy efficiency credentials with the brain-inspired computing primitives. The transfer of deep neural networks (DNNs) onto silicon photonic (SiPho) architectures requires, however, an analog computing engine that can perform tiled matrix multiplication (TMM) at line rate to support DL applications with a large number of trainable parameters, similar to the approach followed by state-of-the-art electronic graphics processing units. Herein, we demonstrate an analog SiPho computing engine that relies on a coherent architecture and can perform optical TMM at the record-high speed of 50 GHz. Its potential to support DL applications, where the number of trainable parameters exceeds the available hardware dimensions, is highlighted through a photonic DNN that can reliably detect distributed denial-of-service attacks within a data center with a Cohen’s kappa score-based accuracy of 0.636.","PeriodicalId":33241,"journal":{"name":"Advanced Photonics","volume":"5 1","pages":"016004 - 016004"},"PeriodicalIF":17.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42985458","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: 6

Realization of a source-device-independent quantum random number generator secured by nonlocal dispersion cancellation 基于非局域色散抵消的源设备无关量子随机数发生器的实现

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2022-12-31 DOI: 10.1117/1.AP.5.3.036003

Ji-Ning Zhang, Ran Yang, Xinhui Li, Chang-Wei Sun, Yichen Liu, Ying Wei, Jiachen Duan, Zhenda Xie, Y. Gong, Shi-Deng Zhu

{"title":"Realization of a source-device-independent quantum random number generator secured by nonlocal dispersion cancellation","authors":"Ji-Ning Zhang, Ran Yang, Xinhui Li, Chang-Wei Sun, Yichen Liu, Ying Wei, Jiachen Duan, Zhenda Xie, Y. Gong, Shi-Deng Zhu","doi":"10.1117/1.AP.5.3.036003","DOIUrl":"https://doi.org/10.1117/1.AP.5.3.036003","url":null,"abstract":"Abstract. Quantum random number generators (QRNGs) can provide genuine randomness by exploiting the intrinsic probabilistic nature of quantum mechanics, which play important roles in many applications. However, the true randomness acquisition could be subjected to attacks from untrusted devices involved or their deviations from the theoretical modeling in real-life implementation. We propose and experimentally demonstrate a source-device-independent QRNG, which enables one to access true random bits with an untrusted source device. The random bits are generated by measuring the arrival time of either photon of the time–energy entangled photon pairs produced from spontaneous parametric downconversion, where the entanglement is testified through the observation of nonlocal dispersion cancellation. In experiment, we extract a generation rate of 4 Mbps by a modified entropic uncertainty relation, which can be improved to gigabits per second by using advanced single-photon detectors. Our approach provides a promising candidate for QRNGs with no characterization or error-prone source devices in practice.","PeriodicalId":33241,"journal":{"name":"Advanced Photonics","volume":"5 1","pages":"036003 - 036003"},"PeriodicalIF":17.3,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48914074","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

Endless frontier of plasmonics: a conversation with Naomi Halas 等离子体的无尽前沿：与Naomi Halas的对话

IF 17.3 1区物理与天体物理

Advanced Photonics Pub Date : 2022-11-16 DOI: 10.1117/1.ap.4.6.060501

Jia Zhu

引用次数: 0