ACS Photonics最新文献

Single-Button-Enabled Split-Modulation Transistor for Bidirectional Response in Dynamic Detection 用于动态检测中双向响应的单按钮启用分调制晶体管

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-29 DOI: 10.1021/acsphotonics.5c00355

Hongzhi Li, Yurong Jiang, Suicai Zhang, Leiming Yu, Xueping Li, Xiaohui Song, Congxin Xia

引用次数: 0

Highly Polarized Single-Photon Emission from Localized Excitons in a WSe2/CrSBr Heterostructure WSe2/CrSBr异质结构中局域激子的高偏振单光子发射

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-29 DOI: 10.1021/acsphotonics.5c00144

Varghese Alapatt, Francisco Marques-Moros, Carla Boix-Constant, Samuel Mañas-Valero, Kirill I. Bolotin, Josep Canet-Ferrer, Eugenio Coronado

{"title":"Highly Polarized Single-Photon Emission from Localized Excitons in a WSe2/CrSBr Heterostructure","authors":"Varghese Alapatt, Francisco Marques-Moros, Carla Boix-Constant, Samuel Mañas-Valero, Kirill I. Bolotin, Josep Canet-Ferrer, Eugenio Coronado","doi":"10.1021/acsphotonics.5c00144","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00144","url":null,"abstract":"Single-photon emitters (SPEs) are crucial in quantum communication and information processing. In 2D transition metal dichalcogenides (TMDs), SPEs are realized through inhomogeneous strain, while in combination with 2D magnets, a high spontaneous out-of-plane magnetization can be induced due to proximity effects. Here, an alternative is proposed that consists of suspending a TMD monolayer (WSe2) on a few-layer antiferromagnet (CrSBr) with in-plane magnetic ordering. The resulting heterostructure exhibits localization centers at lower energies than expected. Among them, a bright SPE with a high degree of polarization selection is identified. This suffers a clear energy shift driven by an in-plane magnetic field, and interestingly, this shift is correlated with the metamagnetic transition of CrSBr, suggesting a new kind of proximity-type effect. Unlike regular SPEs in WSe2 (sensitive to out-of-plane magnetic fields), our SPE demonstrates sensitivity to both in-plane and out-of-plane magnetic fields. The added tunability at significantly lower fields offers a promising direction for developing magnetically responsive quantum emitters, paving the way for more practical applications in quantum technologies.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"5 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165332","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

Molecular Optomechanics with Atomic Antennas 原子天线的分子光力学

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-29 DOI: 10.1021/acsphotonics.5c00076

Mikołaj K. Schmidt, Alexander A. High, Michael J. Steel

引用次数: 0

Dynamic Behaviors of Ultralong-Lived Trapped Charges in Doped Organic Light-Emitting Diodes Operating at Low Temperatures and Their Potential Applications for Time–Temperature Indicators 低温掺杂有机发光二极管中超长寿命捕获电荷的动态行为及其在时间-温度指示器中的潜在应用

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-28 DOI: 10.1021/acsphotonics.5c00565

Jing Chen, Jun Yang, Song Yang, Yingfei Yi, Lihong Cheng, Hong Lu, Zuo Li, Sijie Zhang, Qiusong Chen, Xiantong Tang, Jingjing Wang, Yinqiong Zhou, Keyi Zhang, Feng Chen, Yuanjun Li, Qiang Li, Jinfeng Guo, Zuhong Xiong

{"title":"Dynamic Behaviors of Ultralong-Lived Trapped Charges in Doped Organic Light-Emitting Diodes Operating at Low Temperatures and Their Potential Applications for Time–Temperature Indicators","authors":"Jing Chen, Jun Yang, Song Yang, Yingfei Yi, Lihong Cheng, Hong Lu, Zuo Li, Sijie Zhang, Qiusong Chen, Xiantong Tang, Jingjing Wang, Yinqiong Zhou, Keyi Zhang, Feng Chen, Yuanjun Li, Qiang Li, Jinfeng Guo, Zuhong Xiong","doi":"10.1021/acsphotonics.5c00565","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00565","url":null,"abstract":"Trapped charges are commonly observed in doped organic light-emitting diodes (OLEDs) that are especially operating at low temperatures; however, the dynamic behaviors of these charges remain poorly understood, and their potential applications are yet to be explored. Herein, using transient electroluminescence (TEL) technology, a large number of ultralong-lived trapped charges are detected in the doped OLEDs at 20 K. Through systematic studies on the device’s TEL responses, we construct a clear charge-carrier dynamics model for the doped OLEDs working at low temperatures. It reveals that shallow trapped charges can spontaneously detrap under Coulomb interaction, while deep trapped charges are permanently stored at their trap states, as long as the device stays at low-temperature operation. Furthermore, we demonstrate for the first time that the spike always appearing at the TEL rising edge of the doped devices at low temperatures is generated from the radiative recombination of those deep trapped charges released by the applied external electric field. More importantly, we propose a novel application of these OLEDs with ultralong-lived trapped charges as time–temperature indicators (TTIs) for monitoring the product quality of biological agents and specialty chemicals during their low-temperature storage and transportation. Thus, this work not only elucidates the dynamics of trapped charges in low-temperature-doped systems but also expands the potential applications of OLEDs to energy and information storage technologies.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"49 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165337","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

Multi-Angle Focusing Metalens Designed via KAN Deep Learning for Expanding the Reception Field of MEMS LiDAR 利用KAN深度学习设计多角度聚焦超透镜，扩大MEMS激光雷达的接收范围

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-28 DOI: 10.1021/acsphotonics.5c00732

Yue Wang, Yu Wang, Zeyang Zhang, Chunhui Wang, Kuang Zhang, Xing Yang, Guohui Yang, Yu Zhang

{"title":"Multi-Angle Focusing Metalens Designed via KAN Deep Learning for Expanding the Reception Field of MEMS LiDAR","authors":"Yue Wang, Yu Wang, Zeyang Zhang, Chunhui Wang, Kuang Zhang, Xing Yang, Guohui Yang, Yu Zhang","doi":"10.1021/acsphotonics.5c00732","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00732","url":null,"abstract":"The small receiving field of view of the detector often limits the scanning angle of the MEMS LiDAR. This paper designs and experimentally verifies a multiangle focusing metalens to tackle this challenge, which can focus light at various incident angles near its optical axis, unlike a conventional focusing metalens. To simplify the design process, we propose a novel neural network architecture that integrates Kolmogorov–Arnold Network (KAN) modules, Multilayer Perceptron (MLP) modules, Convolutional Neural Network (CNN) modules, and Transformer structures. This architecture enables accurate and rapid predictions of the phase and transmission efficiency for various meta-atoms at different incident angles, achieving prediction accuracies exceeding 95%. Considering fabrication constraints, the designed neural network can generate a library of 600 simple geometric meta-atoms in less than 1 min. Using this library, we simulated and experimentally validated the multiangle focusing metalens. Results show that with a diameter of 2 mm and a focal length of 1 mm, the metalens can effectively focus light at incident angles from 0 to 30°, with a maximum focal length shift of only 20 μm, one-tenth of that of conventional metalenses with the same parameters. This demonstrates that the designed metalens can significantly enhance the receiving field of view for MEMS LiDAR detectors and similar systems.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"58 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165338","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

Automated Modal Analysis of Entanglement with Bipartite Self-Configuring Optics 二部自构形光学纠缠的自动模态分析

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-28 DOI: 10.1021/acsphotonics.5c00813

Charles Roques-Carmes, Aviv Karnieli, David A. B. Miller, Shanhui Fan

{"title":"Automated Modal Analysis of Entanglement with Bipartite Self-Configuring Optics","authors":"Charles Roques-Carmes, Aviv Karnieli, David A. B. Miller, Shanhui Fan","doi":"10.1021/acsphotonics.5c00813","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00813","url":null,"abstract":"Entanglement is a unique feature of quantum mechanics. In coupled systems of light and matter, entanglement manifests itself in the linear superposition of multipartite quantum states (e.g., parametrized by multiple spatial, spectral, or temporal degrees of freedom of a light field). In bipartite systems, the Schmidt decomposition provides a modal decomposition of the entanglement structure over independent, separable states. Although ubiquitous as a mathematical tool to describe and measure entanglement, there exists no general efficient experimental method to decompose a bipartite quantum state onto its Schmidt modes. Here, we propose a method that relies on bipartite self-configuring optics that automatically “learns” the Schmidt decomposition of an arbitrary pure quantum state. Our method is designed for entanglement distributed over spatial or spectral degrees of freedom of a light field and can reconstruct the Schmidt modes and values by variational optimization of the network’s output powers or coincidences. We illustrate our method with numerical examples of spectral entanglement analysis for biphotons generated via spontaneous parametric down conversion and provide experimental guidelines for its realization and generalization to other degrees of freedom of light, including the influence of losses and impurities. Our method provides a versatile and scalable way of analyzing entanglement in bipartite integrated quantum photonic systems.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"25 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165340","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

Terahertz-Driven Two-Dimensional Mapping for Electron Temporal Profile Measurement 太赫兹驱动的电子时间剖面测量二维映射

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-28 DOI: 10.1021/acsphotonics.5c00243

Xie He, Jiaqi Zheng, Dace Su, Jianwei Ying, Lufei Liu, Hongwen Xuan, Jingui Ma, Peng Yuan, Nicholas H. Matlis, Franz X. Kärtner, Dongfang Zhang, Liejia Qian

{"title":"Terahertz-Driven Two-Dimensional Mapping for Electron Temporal Profile Measurement","authors":"Xie He, Jiaqi Zheng, Dace Su, Jianwei Ying, Lufei Liu, Hongwen Xuan, Jingui Ma, Peng Yuan, Nicholas H. Matlis, Franz X. Kärtner, Dongfang Zhang, Liejia Qian","doi":"10.1021/acsphotonics.5c00243","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00243","url":null,"abstract":"The precise measurement of electron temporal profiles is crucial for advancing electron and X-ray devices used in ultrafast imaging and spectroscopy. While high temporal resolution and a large temporal window can be achieved separately using different technologies, on-the-fly measurement enabling simultaneous high resolution and a large window remains challenging. Here, we present the first terahertz (THz)-driven electron oscilloscope capable of measuring electron pulses with high temporal resolution and a scalable, large temporal window simultaneously. The transient THz electric field induces temporal electron streaking in the vertical axis, while extended interaction along the horizontal axis leads to a propagation-induced time delay, enabling electron beam sampling with a subcycle THz wave. This allows on-the-fly femtosecond electron measurement with a temporal window of tens of picoseconds, surpassing previous THz-based techniques by an order of magnitude. The measurement capability is further enhanced through projection imaging, deflection cavity tilting, and shortened antenna utilization, resulting in signal spatial magnification, extended temporal window, and increased field strength. The technique holds promise for a wide range of applications and opens new opportunities in ultrafast science and accelerator technologies.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"153 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153816","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

A Broadband Angular-Selective Midinfrared Photodetector 一种宽带选角中红外光电探测器

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-27 DOI: 10.1021/acsphotonics.5c00394

Ziwei Fan, Taeseung Hwang, Yixin Chen, Zi Jing Wong

{"title":"A Broadband Angular-Selective Midinfrared Photodetector","authors":"Ziwei Fan, Taeseung Hwang, Yixin Chen, Zi Jing Wong","doi":"10.1021/acsphotonics.5c00394","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00394","url":null,"abstract":"Midinfrared photodetectors are susceptible to background noise since every object in the surroundings emits thermal radiation from different directions. To reduce this background noise and enhance the signal-to-noise ratio of midinfrared sensing, different strategies to achieve angular-selective filtering have been proposed. However, these methods are either wavelength- and polarization-dependent or require bulky lens or mirror systems. The former compromises the photodetector sensitivity, and the latter makes it difficult to integrate with wearable or on-chip devices. In this study, we present a novel angular-selective microstructure array that can seamlessly integrate onto a midinfrared photodetector. Our compact device leverages the conservation of etendue to attain high angular selectivity over a broad range of midinfrared wavelengths. Radiation from unwanted angles is substantially filtered, which leads to a markedly enhanced photodetection signal-to-noise ratio. Furthermore, the device’s photoresponse is shown to be polarization- and wavelength-insensitive, avoiding signal losses associated with narrow spectral ranges or polarization dependence and therefore circumventing degradation in photodetector sensitivity. Our broadband angular-selective midinfrared photodetector holds great promise for wearable devices, medical diagnostics, and space applications.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"5 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153817","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

Cost-Effective Motionless Color Coded Ptychography for High-Throughput Biomedical Imaging 用于高通量生物医学成像的具有成本效益的静止彩色编码印刷术

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-26 DOI: 10.1021/acsphotonics.5c00693

Ruilin You, Jiabin Chen, Yihan Wang, Zheng Zhang, Yuanyuan Sun, Bofan Song, Douglas A. Loy, Zhongying Ji, Zhihan Hong, Rongguang Liang

{"title":"Cost-Effective Motionless Color Coded Ptychography for High-Throughput Biomedical Imaging","authors":"Ruilin You, Jiabin Chen, Yihan Wang, Zheng Zhang, Yuanyuan Sun, Bofan Song, Douglas A. Loy, Zhongying Ji, Zhihan Hong, Rongguang Liang","doi":"10.1021/acsphotonics.5c00693","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00693","url":null,"abstract":"High-throughput imaging methods are essential for various biomedical applications such as digital pathology, drug screening, and early stage cancer detection. Over the past few decades, numerous lensless techniques have emerged to provide high-throughput imaging with significantly more cost-effective hardware compared to conventional optical microscopy systems. Most lensless systems require sophisticated multiheight mechanical motions for phase retrieval, combined with subpixel shifts to reconstruct high-resolution images. These setups often involve bulky mechanical stages. Alternative approaches utilizing multiwavelength techniques can achieve similar physical shifts needed for phase retrieval but sacrifice color information in the process. We propose a novel coded ptychography lensless system capable of recovering high-resolution holographic images by using a single wavelength without any mechanical motion. Additionally, we leveraged an RGB LED matrix for color lensless imaging. Our compact lensless system demonstrates its capabilities by imaging various mouse tissues and organisms and oral cells offering a large field of view 30 mm2 with a resolution of 1.95 μm.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"18 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137089","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

Demonstration of Photonic Integrated Circuit Seed Laser System: Toward Space-Based Water Vapor and Methane Differential Absorption Lidar 光子集成电路种子激光系统的演示：面向天基水汽和甲烷微分吸收激光雷达

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-05-26 DOI: 10.1021/acsphotonics.4c01529

Nathan Dostart, Amin Nehrir, Jes Sherman, Don Kebort, Trevor Cooper, Thomas ZY Liu, Amalu Shimamura, David Harper, Charles Antill, Rory Barton-Grimley, Leif Johansson, Gordon Morrison, Milan Mashanovitch

{"title":"Demonstration of Photonic Integrated Circuit Seed Laser System: Toward Space-Based Water Vapor and Methane Differential Absorption Lidar","authors":"Nathan Dostart, Amin Nehrir, Jes Sherman, Don Kebort, Trevor Cooper, Thomas ZY Liu, Amalu Shimamura, David Harper, Charles Antill, Rory Barton-Grimley, Leif Johansson, Gordon Morrison, Milan Mashanovitch","doi":"10.1021/acsphotonics.4c01529","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01529","url":null,"abstract":"Differential absorption lidar (DIAL) systems are used for accurate vertical profiling and high precision columnar retrievals of molecular components of the atmosphere. Future space-based DIAL systems will enable global monitoring of species crucial to understanding weather and climate systems such as water vapor and methane. DIAL systems require dynamic, high-stability seed laser sources to provide accurate, sensitive measurements by tuning on and off molecular absorption lines. The NASA Langley Research Center is developing a seed laser system for DIAL detection of water vapor and methane based on a core photonic integrated circuit (PIC) subsystem including dual tunable lasers, amplifiers, modulators, photodiodes, and a passive splitter/combiner network on-chip. In this Article, we assemble a breadboard prototype of the seed laser source composed of a first generation PIC, a methane cell, a passive fiber network, and electronic controllers. The seed laser prototype’s performance is demonstrated in terms of PIC laser and modulator performance, online locking accuracy to a methane cell, rapid offset-locking accuracy for the DIAL measurement, and long-term stability. This initial demonstration achieves key performance metrics necessary for space-based DIAL measurements of water vapor and methane, providing a clear path toward a future space-grade system.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"3 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144146264","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