ACS Photonics最新文献

Integrated Opto-Synaptic IGZO Transistors for Image Recognition Fabricated at Room Temperature 在室温下制造出用于图像识别的集成光突触 IGZO 晶体管

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-05 DOI: 10.1021/acsphotonics.4c01809

Shu Ming Qi, Jia Cheng Li, Yang Hui Xia, Zi Chun Liu, De Dai, Ting Lu Song, Hui Xia Yang, Yuan Xiao Ma, Ye Liang Wang

{"title":"Integrated Opto-Synaptic IGZO Transistors for Image Recognition Fabricated at Room Temperature","authors":"Shu Ming Qi, Jia Cheng Li, Yang Hui Xia, Zi Chun Liu, De Dai, Ting Lu Song, Hui Xia Yang, Yuan Xiao Ma, Ye Liang Wang","doi":"10.1021/acsphotonics.4c01809","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01809","url":null,"abstract":"At room temperature, high-κ HfLaO is adopted as the gate dielectric to fabricate amorphous InGaZnO (a-IGZO) optical synaptic thin-film transistors (TFTs), for which plasma treatments are conducted on the HfLaO dielectric in O2 and a-IGZO in Ar, respectively, namely, OPT/APT-TFTs. Consequently, high-performance a-IGZO TFTs are obtained with a high carrier mobility of 20.8 cm2/V·s, a high Ion/Ioff ratio of 3.2 × 106, and a small subthreshold swing (SS) of 0.25 V/dec. As compared to the pristine TFTs, the photocurrent of the OPT/APT-TFTs under a 365 nm ultraviolet (UV) light is significantly raised three times up to 1.4 μA. Meanwhile, the current decay percentage after irradiation removal is reduced from 98% down to 36% within 60 s, indicating an enhanced persistent-photoconductivity (PPC) effect. Accordingly, various optical synaptic plasticities are obtained based on which a simulated neuronal network with a high 93.22% accuracy is achieved to recognize MNIST handwritten digits. Moreover, both neurotransmitter and neuromodulator behaviors are concurrently emulated in a single device through exploiting the native three-terminal structure of the TFT. Importantly, an artificial visual nervous system is successfully constructed by integrating the a-IGZO optoelectronic TFTs for image recognition.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"15 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783004","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

Exploring Phase Topology and Group Index Modifications of THz Vibro-Polaritons in Metasurfaces 探索太赫兹振动极化子在超表面中的相位拓扑和群指数变化

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-04 DOI: 10.1021/acsphotonics.5c00122

Jie Ji, Amir Mousawi, Joost Scheers, Alaa Jabbar Jumaah, Shihab Al-Daffaie, Jaime Gómez Rivas

{"title":"Exploring Phase Topology and Group Index Modifications of THz Vibro-Polaritons in Metasurfaces","authors":"Jie Ji, Amir Mousawi, Joost Scheers, Alaa Jabbar Jumaah, Shihab Al-Daffaie, Jaime Gómez Rivas","doi":"10.1021/acsphotonics.5c00122","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00122","url":null,"abstract":"Strong coupling between molecules and the vacuum field in optical cavities creates hybrid light–matter quantum states known as polaritons, a phenomenon that has garnered significant interest in recent years. Although most studies of strong coupling have focused on the characteristics of intensity spectra, the behavior of the phase of polaritons remains comparatively unexplored. In this work, we employ metasurfaces that support optical modes to couple them strongly with intermolecular vibrations in α-lactose at THz frequencies, forming vibro-polaritons. Using terahertz time-domain spectroscopy (THz-TDS), we examine this strongly coupled system in both amplitude and phase and use the phase topology as an indicator for such coupling. In addition, we explore the group index in the weak and strong coupling regimes. We observe the decrease in the negative group index associated with the anomalous dispersion of the resonant modes as a function of the coupling strength. This work reveals previously hidden insights into temporal and enhanced light–matter interactions in strongly coupled systems and highlights the relevance of the phase in the analysis of these systems.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"37 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776168","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

Multiphoton Neurophotonics: Recent Advances in Imaging and Manipulating Neuronal Circuits

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-04 DOI: 10.1021/acsphotonics.4c02101

Cécile Telliez, Ruth Sims, Giulia Faini, Pascal Berto, Eirini Papagiakoumou, Dimitrii Tanese, Nicolò Accanto

引用次数: 0

Waveguide-Integrated MoS2 Field-Effect Transistors on Thin-Film Lithium Niobate with High Responsivity and Ultra-Low Dark Current

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-04 DOI: 10.1021/acsphotonics.4c02618

Fan Yang, Youtian Hu, Jiale Ou, Qingyun Li, Xiangxing Xie, Huangpu Han, Changlong Cai, Shuangchen Ruan, Bingxi Xiang

{"title":"Waveguide-Integrated MoS2 Field-Effect Transistors on Thin-Film Lithium Niobate with High Responsivity and Ultra-Low Dark Current","authors":"Fan Yang, Youtian Hu, Jiale Ou, Qingyun Li, Xiangxing Xie, Huangpu Han, Changlong Cai, Shuangchen Ruan, Bingxi Xiang","doi":"10.1021/acsphotonics.4c02618","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02618","url":null,"abstract":"This study investigates the photoelectric performance of MoS2-based field-effect transistors (FETs) integrated with a thin-film lithium niobate (TFLN) waveguide platform. The MoS2 FET demonstrates high photodetection capabilities across a broad wavelength range from visible to near-infrared (up to 1550 nm). By adjusting the gate voltage from 0 V to −25 V, the dark current is reduced by over 6 orders of magnitude, reaching approximately 2 pA. Under 635 nm illumination, the device achieves a maximum responsivity of 940 A/W (at an input power of 35 pW), an on/off ratio (Ilight/Idark) of 105, and a detectivity of 6.27 × 1014 W–1. Significant photoresponse is also observed at telecommunication wavelengths with a responsivity of 68.7 mA/W and a detectivity of 4.58 × 1010 W–1 at 1310 nm. Additionally, the response times is measured to be under 300 μs across all tested wavelengths. The combination of two-dimensional material FET and TFLN offers an attractive platform for realizing high-performance optoelectronic devices and multifunctional integrated photonic circuits.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"58 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775941","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

Efficiency Enhancement of InP-Based Quantum Dot Light-Emitting Diodes by Introducing a Phosphorescent-Dye Sensitizer in a Hole Transport Layer

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-03 DOI: 10.1021/acsphotonics.4c02421

Hui Wang, Lijia Zhao, Xin Bao, Hongwei Yu, Guoqiang Zhang, Ting Wang, Xiangdong Meng, Shihao Liu, Xi Yuan, Wenfa Xie

{"title":"Efficiency Enhancement of InP-Based Quantum Dot Light-Emitting Diodes by Introducing a Phosphorescent-Dye Sensitizer in a Hole Transport Layer","authors":"Hui Wang, Lijia Zhao, Xin Bao, Hongwei Yu, Guoqiang Zhang, Ting Wang, Xiangdong Meng, Shihao Liu, Xi Yuan, Wenfa Xie","doi":"10.1021/acsphotonics.4c02421","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02421","url":null,"abstract":"Low-toxicity indium phosphide (InP) quantum dots (QDs) have attracted considerable attention for their environmental benefits. However, compared to conventional high-performance cadmium-based QDs, InP-QDs suffer from weaker electron confinement, which leads to significant electron accumulation and nonradiative recombination in InP-based quantum dot light-emitting diodes (InP-QLEDs). In this work, we propose introducing the sensitizer as the external exciton recombination center within a hole transport layer (HTL). This sensitizer harvests accumulated electrons to form excitons and transfers energy to adjacent InP-QDs, thereby enhancing radiative recombination. To demonstrate this approach, we fabricated red InP-QLEDs with a sensitizer-doped HTL composed of poly(9,9-dioctylfluorene-alt-N-(4-s-butylphenyl)-diphenylamine) and tris[2-(p-tolyl)pyridine]iridium(III). Our results show that the introduction of the sensitizer promotes carrier-balanced injection through interfacial modification and enhances radiative recombination by collecting accumulated electrons. Together, these effects significantly improve the performance of InP-QLEDs. The maximum external quantum efficiency of the InP-QLEDs increases from 8.3 to 17.1% with a doped HTL. Moreover, the operational lifetime of the device with the sensitizer is extended by 17.6-fold. Our findings demonstrate that introducing a phosphorescent-dye sensitizer in a transporting layer is a simple and effective strategy to achieve high-performance InP-QLEDs.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"183 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776169","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

Breaking the Electric-Dipole Selection Rule via a Plasmonic Nanocavity Excited by a k-Space Filter-Assisted Radial Vector Beam 通过 k 空间滤波器辅助径向矢量光束激发的质子纳米腔打破电偶极选择规则

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-03 DOI: 10.1021/acsphotonics.4c01220

Yueweiying Wang, Chao Meng, Chenyang Kong, Zhonglin Xie, Fanfan Lu, Lei Xu, Ting Mei, Wending Zhang

引用次数: 0

Tunable Laser Using Transverse Cavity Surface Emitting Laser Working near Exceptional Point

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-02 DOI: 10.1021/acsphotonics.5c00006

Tongyao Wu, Qian Cai, Belal Jahannia, Chandraman Patil, Jiachi Ye, Mohsen Ahmadian, Hamed Dalir, Elham Heidari

引用次数: 0

Suppression of Secondary Phases with Additive Engineering for the Spectrometer-Grade CsPbBr3 Single Crystals

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-02 DOI: 10.1021/acsphotonics.4c02481

Yongning Liu, Minghao Cui, Xiaoxi Feng, Wenzhen Wang, Xudong Tang, Sirui Bao, Kunpeng Mou, Benlan Zeng, Fangxiong Tang, Jianing Hu, Huaxing Gou, Jinkun Liu, Yan Zhu, Run Xu

{"title":"Suppression of Secondary Phases with Additive Engineering for the Spectrometer-Grade CsPbBr3 Single Crystals","authors":"Yongning Liu, Minghao Cui, Xiaoxi Feng, Wenzhen Wang, Xudong Tang, Sirui Bao, Kunpeng Mou, Benlan Zeng, Fangxiong Tang, Jianing Hu, Huaxing Gou, Jinkun Liu, Yan Zhu, Run Xu","doi":"10.1021/acsphotonics.4c02481","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02481","url":null,"abstract":"CsPbBr3 single crystals have garnered significant attention as one of the most promising candidates for room-temperature semiconductor radiation detectors. However, the current solution-based growth of CsPbBr3 single crystals suffers from issues of the formation of secondary phases (CsPb2Br5) and strain-induced cracks in crystals due to high growth temperatures above the phase transition. In this study, 4-bromobutyric acid (BBA) as an additive was introduced in the precursor, which leads to an effective suppression of secondary phase formation and simultaneously a reduction of the crystal growth temperature. The CsPbBr3 single crystals grown with BBA exhibited improved crystal quality, with a full width at half-maximum of (200) X-ray rocking curve (XRC) as low as 0.025° and a high hole mobility-lifetime product (μτh) of 0.57 × 10–4 cm2/V. Moreover, the energy resolution for 57Co γ-ray spectra was improved to around 15.2%, indicating a great improvement in transport properties for CsPbBr3 single crystals grown with BBA. This study suggests that the effective suppression of the CsPb2Br5 secondary phase is likely one of the most important issues for a spectrometer-grade CsPbBr3 detector.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"71 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766418","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-Spatial and Spectral Resolution Snapshot Spectral Imaging Based on Nearfield Coupled Metasurfaces

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-02 DOI: 10.1021/acsphotonics.4c02504

Yang Zhang, Lei Zhang, Yanlin Zhu, Yi Zhou, Gaofeng Liang, Zhongquan Wen, Jin Xiang, Jingdong Chen, Gang Chen

{"title":"High-Spatial and Spectral Resolution Snapshot Spectral Imaging Based on Nearfield Coupled Metasurfaces","authors":"Yang Zhang, Lei Zhang, Yanlin Zhu, Yi Zhou, Gaofeng Liang, Zhongquan Wen, Jin Xiang, Jingdong Chen, Gang Chen","doi":"10.1021/acsphotonics.4c02504","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02504","url":null,"abstract":"Snapshot spectral imaging based on metasurfaces provides spatial and spectral information, making it highly promising for consumer applications including drones, smartphones, and Internet of Things devices (IoT). However, current metasurface-based spectral imaging techniques rely on nonlocal coupling, i.e., collective resonance, which requires significantly large periodic structures to achieve narrow line width response, resulting in a trade-off between spectral and spatial resolution. Herein, we theoretically propose and demonstrate a narrow line width spatial-spectral metasurface encoder based on localized coupling, achieving high spatial and spectral resolution simultaneously. By employing a global optimization algorithm to optimize the coupling strength between adjacent nanoblocks, the footprint of a spatial-spectral metasurface encoder can be reduced to as small as ∼5 μm, which is comparable to the pixel size of the CMOS imager. By combining deep learning reconstruction algorithms, we can achieve high-precision spectral recovery in the visible range across various spectral images. Our approach offers valuable insights for high-speed, high spatial, and spectral resolution spectral imaging.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"12 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758201","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 Bidirectional Thermal Emission Supported by Localized Surface Plasmons and Magnetic Polaritons

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-04-02 DOI: 10.1021/acsphotonics.5c00206

Cunhai Wang, Tao Chen, Hao Chen, Jingchong Liu, Hong-Liang Yi

{"title":"Broadband Bidirectional Thermal Emission Supported by Localized Surface Plasmons and Magnetic Polaritons","authors":"Cunhai Wang, Tao Chen, Hao Chen, Jingchong Liu, Hong-Liang Yi","doi":"10.1021/acsphotonics.5c00206","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00206","url":null,"abstract":"Achieving broadband directive (BBD) thermal emission is of fundamental importance for high-performance thermal antennas, stealth, and energy harvesting. However, previous BBD emitters lack consideration of azimuth dependence, and the waveband is limited. Herein, we design a metal–insulator–insulator–metal (MIIM) thermal emitter for achieving polar-azimuthal selective emission within the 8–14 μm atmospheric window, namely, broadband bidirectional thermal emission. The proposed MIIM structure consists of aluminum (Al) stripes on the top, beneath aluminum oxide (Al2O3) and silicon oxide (SiO) films, and an Al substrate. We explicitly present the design procedure of the MIIM structure to achieve broadband bidirectional emission and reveal the underlying mechanisms. Results indicate that the intrinsic absorption of the dielectric layers, localized surface plasmons (LSPs), and magnetic polaritons (MPs) synergistically promote the broadband bidirectional emission of the MIIM structure, resulting in bidirectional thermal emission within two well-constrained solid angles with marginal angular dispersion. This work reports a high-performance broadband bidirectional emitter and provides new insights into controlling polar-azimuth emissivity through the superposition and coupling effects of LSPs and MPs, with potential applications in thermal imaging and camouflage.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"17 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766419","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