ACS Photonics最新文献

Interfacial Molecular Engineering for Efficient Sn Perovskite Light-Emitting Diodes 用于高效锡包晶发光二极管的界面分子工程学

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-19 DOI: 10.1021/acsphotonics.4c01467

Seok Joo Yang, Dharini Varadharajan, Kagachi Tateno, Yu-Ting Yang, Jeong Hui Kim, Kevin R. Pedersen, Sung-Doo Baek, Hanjun Yang, Aidan H. Coffey, Kenneth R. Graham, Bryan W. Boudouris, Letian Dou

引用次数: 0

Thermalization and Spin Relaxation Dynamics of Localized Photocarriers in the Band Tails of Nanocrystalline MAPbBr3 Films 纳米晶 MAPbBr3 薄膜带尾局部光载流子的热化和自旋弛豫动力学

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-18 DOI: 10.1021/acsphotonics.4c00873

Chuang Zhang, Paul Bailey, Shuchun Zhang, Uyen Huynh, Xiaomei Jiang, Stephen McGill, Dmitry Semenov, Z. Valy Vardeny

{"title":"Thermalization and Spin Relaxation Dynamics of Localized Photocarriers in the Band Tails of Nanocrystalline MAPbBr3 Films","authors":"Chuang Zhang, Paul Bailey, Shuchun Zhang, Uyen Huynh, Xiaomei Jiang, Stephen McGill, Dmitry Semenov, Z. Valy Vardeny","doi":"10.1021/acsphotonics.4c00873","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00873","url":null,"abstract":"We have studied the spin properties of localized photocarriers in the band tails (BT) of polycrystalline MAPbBr3 films having a nanometer crystal size using circularly polarized photoluminescence (PL) induced by a magnetic field up to 17.5 T at cryogenic temperatures as well as time-of-flight (TOF) transient photocurrent. The absorption spectrum of these films reveals BT states caused by structural and energetic disorders, having a broadly distributed Urbach edge ranging from 28 to 120 meV. This is corroborated by dispersive transport of photogenerated electrons and holes observed via TOF, where the photocarriers thermalize with time deeply in the BT, giving rise to time-dependent mobility. Consequently, the PL emission spectrum in these films originates from radiative recombination of the localized electron and hole pairs in the BT states. Upon applying a magnetic field in the Faraday configuration, field-induced circular polarized PL has been observed, from which an effective Landé g-factor of the localized e–h pairs, ge–h, was extracted to be 2.5 ± 0.2, in good agreement with the g-factor of free excitons measured using magnetic circular dichroism spectroscopy. In addition, we also found that the spin relaxation time for the e–h pairs in the BT states is ∼26 ns at 5 K and ∼10 ns at 80 K, indicating that nanocrystalline MAPbBr3 could be a good candidate for applications in spintronics and quantum computing.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142448741","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

High-Speed Coherent Photonic Random-Access Memory in Long-Lasting Sound Waves 长效声波中的高速相干光子随机存取存储器

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-18 DOI: 10.1021/acsphotonics.4c00478

Andreas Geilen, Steven Becker, Birgit Stiller

{"title":"High-Speed Coherent Photonic Random-Access Memory in Long-Lasting Sound Waves","authors":"Andreas Geilen, Steven Becker, Birgit Stiller","doi":"10.1021/acsphotonics.4c00478","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00478","url":null,"abstract":"In recent years, remarkable advances in photonic computing have highlighted the need for photonic memory, particularly high-speed and coherent random-access memory. Addressing the ongoing challenge of implementing photonic memories is required to fully harness the potential of photonic computing. A photonic-phononic memory based on stimulated Brillouin scattering is a possible solution, as it coherently transfers optical information into sound waves at high-speed. Such an optoacoustic memory has shown great potential as it fulfills key requirements for high-performance optical random-access memory due to its coherence, on-chip compatibility, frequency selectivity, and high bandwidth. However, the storage time has so far been limited to a few nanoseconds due to the nanosecond decay of the acoustic wave. In this work, we experimentally enhance the intrinsic storage time of an optoacoustic memory by more than 1 order of magnitude and coherently retrieve optical information after a storage time of 123 ns. This is achieved by employing the optoacoustic memory in a highly nonlinear fiber at 4.2 K, increasing the intrinsic phonon lifetime by a factor of 6. We demonstrate the capability of our scheme by measuring the initial and readout optical data pulses with a direct and double homodyne detection scheme. Finally, we analyze the dynamics of the optoacoustic memory at different cryogenic temperatures in the range of 4.2–20 K and compare the findings to continuous wave measurements. The extended storage time is beneficial not only for photonic computing but also for Brillouin applications that require long phonon lifetimes, such as optoacoustic filters, true-time delay networks, and synthesizers in microwave photonics.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142448740","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

Bipolar Tunable Field-Effect Transistor Based on the Td-MoTe2/WSe2 Heterojunction with Reconfigurable Polarity Transition for Enhanced Photodetection 基于具有可重构极性转换的 Td-MoTe2/WSe2 异质结的双极可调谐场效应晶体管，用于增强光探测功能

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-17 DOI: 10.1021/acsphotonics.4c01378

Xingyu Zhao, Nan Zhang, Liujian Qi, Bin Wang, Fan Tan, Chunlu Chang, Mingxiu Liu, Mengqi Che, Yaru Shi, Yahui Li, Yanze Feng, Dabing Li, Shaojuan Li

{"title":"Bipolar Tunable Field-Effect Transistor Based on the Td-MoTe2/WSe2 Heterojunction with Reconfigurable Polarity Transition for Enhanced Photodetection","authors":"Xingyu Zhao, Nan Zhang, Liujian Qi, Bin Wang, Fan Tan, Chunlu Chang, Mingxiu Liu, Mengqi Che, Yaru Shi, Yahui Li, Yanze Feng, Dabing Li, Shaojuan Li","doi":"10.1021/acsphotonics.4c01378","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01378","url":null,"abstract":"Broadband photodetectors based on a two-dimensional (2D) heterojunction have received tremendous attention in recent years and have broad application potential in biochemical analysis, optical communication, and other fields. The photodetectors based on the asymmetric Schottky junction have demonstrated attractive optoelectronic properties due to their ultralow dark current and improved photodetection properties. However, it is difficult to tune the Schottky barriers with 2D semiconductors due to the Fermi pinning effect or the large mismatch between the energy band structure of the 2D channel and the metal electrode. Herein, we demonstrate a broadband photodetector based on semimetal Td-MoTe2/bipolar semiconductor WSe2/Ti covering the visible-to-infrared wavelength. Kelvin probe force microscopy characterization reveals a well-matched energy band alignment between Td-MoTe2 and WSe2 that allows the Schottky barriers to be broadly modulated by the gate voltage, leading to a reconfigurable polarity transition of the photocurrent. The spatially resolved photocurrent mapping indicates that the asymmetric junction at both ends dominates the photocurrent generation at the different bias voltages. The gate voltage is applied to change the Fermi level of WSe2, which modulates the Schottky barrier and, thereby, improves carrier transport and photoelectric conversion capabilities. As a result, the device achieves a 417% improvement in responsivity and 1183% in detectivity at a light power of 1.2 mW/cm2. This work demonstrates the potential application of 2D van der Waals field-effect transistors with asymmetric Schottky contacts for broadband, high-performance, and tunable photodetection.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444360","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

Enhancing Complex Light Beam Propagation in Turbulent Atmosphere with Active Convolved Illumination 利用主动卷积照明增强湍流大气中的复杂光束传播

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-15 DOI: 10.1021/acsphotonics.4c00687

Anindya Ghoshroy, James Davis, Adrian A. Moazzam, Roohollah Askari, Durdu Ö. Güney

{"title":"Enhancing Complex Light Beam Propagation in Turbulent Atmosphere with Active Convolved Illumination","authors":"Anindya Ghoshroy, James Davis, Adrian A. Moazzam, Roohollah Askari, Durdu Ö. Güney","doi":"10.1021/acsphotonics.4c00687","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00687","url":null,"abstract":"Robust transmission of spatial, spectral, or temporal distributions of light through complex disordered media such as a turbulent atmosphere, biological tissue, or turbid media remains a critical obstacle in many research fields involving imaging, diagnosis, sensing, and communications. Inspired from a virtual-gain technique for loss compensation in metamaterials, active convolved illumination (ACI) has been recently proposed as a ubiquitous optical compensation technique to significantly enhance information transport and hence data acquisition across lossy, noisy, or distorting media. The enhancement is achieved with an auxiliary source, which is correlated with the ground truth and ideally, when superimposed with the latter, perfectly compensates for any distortion incurred during the transmission process. In this work, we propose the first framework to implement ACI for robust coherent light transmission through a turbulent atmosphere. The auxiliary source is formulated from a reciprocal space characterization of the speckle pattern from a guide star or pilot beam. The proposed method can maintain high-fidelity wave propagation under moderately anisoplanatic conditions with an impressive 20-fold enhancement compared to the resolution limit of the turbulent atmosphere. We outline potential strategies to extend the framework to include dynamic turbulence and scattering effects. This work introduces a powerful tool for robust light transmission through disordered media and potentially can be seamlessly integrated with existing techniques and further extended to the broad spectrum of statistical sciences.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142436439","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

Spatiotemporal Mode-Locked Multimode Soliton Fiber Laser Based on a Spatial Alignment Structure 基于空间排列结构的时空模式锁定多模孤子光纤激光器

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-15 DOI: 10.1021/acsphotonics.4c01563

Zihao Zhang, Yang Zhang, Xinghao Duan, Yi Zhang, Yue Dong, Junli Wang

{"title":"Spatiotemporal Mode-Locked Multimode Soliton Fiber Laser Based on a Spatial Alignment Structure","authors":"Zihao Zhang, Yang Zhang, Xinghao Duan, Yi Zhang, Yue Dong, Junli Wang","doi":"10.1021/acsphotonics.4c01563","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01563","url":null,"abstract":"The spatiotemporal mode-locking (STML) offers a viable solution to address the energy limit of the single-mode conventional soliton (SM-CS). While the potential for generating highly multimode conventional soliton lasers has been predicted, experimental demonstrations are still lacking. Moreover, existing STML systems have relied on conventional saturable absorbers (SAs), such as nonlinear polarization evolution and material SAs, which restrict output parameters due to complex spatial structures or low damage thresholds. To the best of our knowledge we report the first experimental realization of a multimode CS laser (dominated by the LP21 mode) using a spatial alignment structure (SAS). This SAS consists of two aspherical lenses, which function simultaneously as an SA, spatial filter, and attenuator. This configuration enhances system compactness and introduces additional degrees of freedom for adjustment. By modifying the alignment of the SAS, various MM nonlinear dynamics can be observed, including center wavelength shifting, spectrum and spatial evolution, harmonic STML, soliton molecules, and a multicolor STML. Our system shows clear advantages in pulse energy (>3 nJ), stability, and tunability compared to other 1.5 μm STML lasers. Incorporating a SM output coupler enables the simultaneous generation of both a SM-CS and a multimode convention soliton (MM-CS), which exhibit similar spectral profiles and pulse durations approaching the transform limit. Our results indicate that soliton-like pulse shaping is crucial for achieving multimode soliton pulses. The pulse energy of SM-CS, measured at 7.05 nJ (35.25 nJ intracavity pulse energy), represents nearly a 10-fold increase compared to previous SM-CS fiber lasers. This STML system with the new SA offers a valuable platform for exploring complex multimode nonlinear dynamics and provides a promising approach for achieving high-energy soliton lasers.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142436441","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

Self-Powered and Broadband Optical Synapse Device Based on Se-Vacancy Bi2O2Se for Artificial Vision System Application 基于 Se-Vacancy Bi2O2Se 的自供电宽带光学突触器件在人工视觉系统中的应用

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-15 DOI: 10.1021/acsphotonics.4c01586

Xuanyu Ren, Xinxin He, Zhan Duan, Xuyang An, Yang Li, Feng Gao, Jia Zhang, PingAn Hu

{"title":"Self-Powered and Broadband Optical Synapse Device Based on Se-Vacancy Bi2O2Se for Artificial Vision System Application","authors":"Xuanyu Ren, Xinxin He, Zhan Duan, Xuyang An, Yang Li, Feng Gao, Jia Zhang, PingAn Hu","doi":"10.1021/acsphotonics.4c01586","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01586","url":null,"abstract":"The optical synaptic devices, inspired by the human visual system and capable of emulating biological synaptic behaviors, have demonstrated significant potential for artificial vision applications. However, contemporary optical synaptic devices are hindered by several limitations, including a narrow response range, intricate structures, compromised stability, and substantial energy demands. Herein, large single-crystal Bi2O2Se nanosheets with selenium vacancies (Bi2O2Se–VSe) were synthesized via physical vapor deposition. Based on the Bi2O2Se–VSe nanosheet, a self-powered, broadband optical synaptic device was developed simply by a straightforward asymmetric contact approach. The device proficiently replicates synaptic functionalities without any electrical power requirement. Furthermore, an artificial vision system comprising a 5 × 5 array of self-powered optical synaptic devices was constructed. Under illumination at wavelengths of 350, 532, and 1050 nm for 100 s, the intensity of the image pattern can be kept at a high memory level of 94.91%, 44.92%, and 12.83% after attenuation of 100 s, which demonstrates the excellent image sensing, learning, and memory storage properties. This research paves the way for further exploration of optical synaptic devices and contributes novel insights into the development of artificial vision systems.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439325","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

Enhanced Laser Emission by Incorporating Helically Twisted Silver Nanoflakes within Polymer-Stabilized Cholesteric Liquid Crystals 在聚合物稳定胆甾型液晶中加入螺旋扭曲银纳米片增强激光发射能力

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-11 DOI: 10.1021/acsphotonics.4c01406

Yang Liu, Yubo Wang, Xiyang Wei, Hao Liu, Yongfang Zhang

{"title":"Enhanced Laser Emission by Incorporating Helically Twisted Silver Nanoflakes within Polymer-Stabilized Cholesteric Liquid Crystals","authors":"Yang Liu, Yubo Wang, Xiyang Wei, Hao Liu, Yongfang Zhang","doi":"10.1021/acsphotonics.4c01406","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01406","url":null,"abstract":"The characteristics of the host in a liquid-crystal laser that enable it to emit light are of critical importance in determining the potential applications of such devices. The incorporation of nanomaterials into the host, which incorporates liquid crystals (LCs) to form an assembly, enhances their birefringence and contributes to the dipole moment, thereby reducing pump energy consumption. In this research, silver nanoflakes (Ag-NFs) were blended into the cholesteric liquid crystal (CLC) hosts (CLCs-host), resulting in their helical twisting. The incorporation of a small quantity of Ag-NFs not only enhanced the reflection of the hybrid but also optimized the utilization of pump energy to induce highly brightened lasing due to their excellent localized surface polarization resonance. The liquid-crystal-laser fabricated by blending 0.10 wt % Ag-NFs into polymer-stabilized CLCs (PSCLCs) containing 1 wt % reactive mesogens has been demonstrated to exhibit a lower pump energy consumption at 0.291 μJ/pulse. Moreover, the laser exhibited a higher lasing intensity by 16.2% improvement, superior time-luminance stability, and greater thermal resistance within the 26–38 °C range. The findings of this research contribute to the advancement of random laser technology in a variety of fields and facilitate the development of high-performance optoelectronic devices.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405043","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

Optomechanical Infrared Detector Monolithically Integrated with Micro-Metalens Array 与微金属阵列单片集成的光机械红外探测器

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-10 DOI: 10.1021/acsphotonics.4c00904

Zhendong Luo, Huwang Hou, Ting Meng, Yiming Li, Tao Wang, Yanji Yi, Lianjie Xu, Zhiyu Chen, Hongmei Zhong, Ye Feng, Peng Zhang, Yang Zhao

{"title":"Optomechanical Infrared Detector Monolithically Integrated with Micro-Metalens Array","authors":"Zhendong Luo, Huwang Hou, Ting Meng, Yiming Li, Tao Wang, Yanji Yi, Lianjie Xu, Zhiyu Chen, Hongmei Zhong, Ye Feng, Peng Zhang, Yang Zhao","doi":"10.1021/acsphotonics.4c00904","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00904","url":null,"abstract":"The optomechanical uncooled infrared (IR) detector, based on the bimaterial microcantilever thermal deformation, has proved to have great potential due to the ability to measure IR using visible-spectral-range components. However, like most types of detectors, they encounter the common limitation of a low fill factor, leading to an inefficient utilization of light energy. The metalens, with a compact footprint, high design flexibility, and MEMS (microelectromechanical systems) compatibility, is expected to be integrated with IR detectors to enhance performance. Here, we present the design, fabrication, and characterization of a monolithic integration of a long-wavelength infrared (LWIR) micrometalens array and an optomechanical IR detector. A microfabrication process was developed to successfully prepare such an optomechanical IR detector with a monolithically integrated micrometalens array, where the micrometalens array was directly fabricated on the back of the detector substrate. Experimental results demonstrate that the integration of the micrometalens array markedly amplifies the responsivity of the optomechanical detector within the 8–14 μm wavelength band, achieving an enhancement of 81.8%.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142398588","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

Parallel Wideband Chaos Generation System for Advancing High-Throughput Information Processing Based on an Array of Four Distributed Feedback Lasers 基于四个分布式反馈激光器阵列的并行宽带混沌发生系统，用于推进高吞吐量信息处理

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-10-10 DOI: 10.1021/acsphotonics.4c01641

Yu Huang, Pei Zhou, Kuenyao Lau, Nianqiang Li

{"title":"Parallel Wideband Chaos Generation System for Advancing High-Throughput Information Processing Based on an Array of Four Distributed Feedback Lasers","authors":"Yu Huang, Pei Zhou, Kuenyao Lau, Nianqiang Li","doi":"10.1021/acsphotonics.4c01641","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01641","url":null,"abstract":"Optical chaos, especially in the form of parallel temporal/spatial chaos, presents a highly efficient approach for high-throughput information processing in diverse applications such as optical communication and reinforcement learning. However, despite these advancements, current approaches mainly focus on achieving enhanced single-channel performance or compromised multichannel realization (e.g., sacrificing the bandwidth, individual control, or system complexity). In this study, an integrated laser array with intensity-modulated optical injection is exclusively fabricated and employed to produce parallel optical chaos exhibiting independent and wideband characteristics. We demonstrate in a proof-of-concept experiment that allows for feasibly generating four parallel chaotic signals with a bandwidth exceeding 30 GHz, which is only limited by the detection devices. Benefiting from the high-frequency oscillations and faster dynamics of the on-chip laser array, the physical (physical-based pseudo) random bit generation rate can reach up to 1.6 Tb/s (15.04 Tb/s) by leveraging two postprocessing methods. We further expand the superiority of our proposed approach by demonstrating parallel benchmark decision-making, where we testify both experimentally and numerically that our fabricated laser array system outperforms the existing conventional approaches. This work explores novel avenues for high-throughput information processing by deploying chip-scale parallel chaotic systems.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142397805","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