ACS Photonics最新文献_第3页

Harnessing the Power of Plasmonics for in Vitro and in Vivo Biosensing

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-17 DOI: 10.1021/acsphotonics.4c01657

Ediz Kaan Herkert, Maria F. Garcia-Parajo

{"title":"Harnessing the Power of Plasmonics for in Vitro and in Vivo Biosensing","authors":"Ediz Kaan Herkert, Maria F. Garcia-Parajo","doi":"10.1021/acsphotonics.4c01657","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01657","url":null,"abstract":"Plasmonic nanostructures exhibit localized surface plasmon resonances due to collective oscillation of conducting electrons that can be tuned by modulating the nanostructure size, shape, material composition, and local dielectric environment. The strong field confinement and enhancement provided by plasmonic nanostructures have been exploited over the years to enhance the sensitivity for analyte detection down to the single-molecule level, rendering these devices as potentially outstanding biosensors. Here, we summarize methods to detect biological analytes in vitro and in living cells, with a focus on plasmon-enhanced fluorescence, Raman scattering, infrared absorption, circular dichroism, and refractive index sensing. Given the tremendous advances in the field, we concentrate on a few recent examples toward biosensing under highly challenging detection conditions, including clinically relevant biomarkers in body fluids and nascent applications in living cells and in vivo. These emerging platforms serve as inspiration for exploring future directions of nanoplasmonics that can be further harnessed to advance real-world biosensing applications.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"2 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427056","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

Probing Photoinduced Structural Phase Transitions via Nonlinear Spectroscopy

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-17 DOI: 10.1021/acsphotonics.4c02327

Jicai Zhang, Tran Trung Luu

{"title":"Probing Photoinduced Structural Phase Transitions via Nonlinear Spectroscopy","authors":"Jicai Zhang, Tran Trung Luu","doi":"10.1021/acsphotonics.4c02327","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02327","url":null,"abstract":"The symmetry of a material is crucial to defining its electronic and structural properties. By manipulating this symmetry through photoinduced phase transitions, one can explore innovative methods for controlling material characteristics on ultrafast time scales. It is essential to employ techniques that can probe symmetrical changes in the temporal domain to capture these transitions. Here, by utilizing time-resolved third-order nonlinear spectroscopy, we demonstrate that a time-domain analysis of the coherent phonon dynamics can effectively reveal alterations in the symmetry of the lattice potential. This nonlinear approach serves as a fully optical method for investigating structural transitions. Focusing on the photoinduced structural phase transition in the α-CaF2 dielectric crystal, we observe that as photoexcited carriers increase, the coherent phonon mode initially exhibits a softening effect. Subsequently, the transition from α-CaF2 to γ-CaF2 occurs at higher carrier density, corresponding to a switch from the high-symmetry Fm3̅m to the low-symmetry Pnma space group. The immediate emergence of equilibrium-phase phonon modes beyond the transition threshold indicates a nonthermal mechanism for the photoinduced symmetry changes, where significant perturbation of the lattice potential alters its symmetry before any ionic rearrangement takes place. Our findings open new avenues for investigating structural transitions on the femtosecond time scale.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"64 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427057","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

Impact of Pulse Chirp and Desynchronization on Chip-Based Pulse-Driven Soliton Microcombs

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-17 DOI: 10.1021/acsphotonics.4c02412

Chenxi Zhang, Runlin Miao, Ke Yin, Xiang’Ai Cheng, Tian Jiang

引用次数: 0

Wide Tunable Wavelength, High Topological Charge Perfect Vortex Beams Based on Carbon Dot Lasers

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-16 DOI: 10.1021/acsphotonics.4c02241

Qingxiu Song, Xiangdong Wang, Jiuru He, Liwen Cheng, Yongqiang Zhang, Yongsheng Hu, Siyu Lu

{"title":"Wide Tunable Wavelength, High Topological Charge Perfect Vortex Beams Based on Carbon Dot Lasers","authors":"Qingxiu Song, Xiangdong Wang, Jiuru He, Liwen Cheng, Yongqiang Zhang, Yongsheng Hu, Siyu Lu","doi":"10.1021/acsphotonics.4c02241","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02241","url":null,"abstract":"Vortex beams (VBs), with their unique spatial light field distribution, show promising applications in fields such as optical micromanipulation and high-capacity optical communications. However, the simultaneous realization of broad wavelength tunability and high topological charge remains a great challenge. In this work, based on the gain media of fluorescent carbon dots, which are known as a class of solution-processable and biocompatible materials with luminescence spectra covering from ultraviolet to near-infrared, perfect vortex beams (PVBs) with a wide wavelength tunability of up to 15 nm and a high topological charge of up to 50 have been realized for the first time. A combined strategy using double-beam interference pumping and a spatial light modulator (SLM) was proposed. Results show that the radii of the PVBs are independent of the number of topological charges but vary with the laser wavelength. While they can also be flexibly tuned by changing the period of the axicon and the focal length of the Fourier lens. Finally, a polarized PVB was successfully constructed by using a cascaded SLM, which further enriches the vortex mode properties of the carbon dot lasers. The results not only provide a new route for simultaneously improving the wavelength tunability and the topological charge of vortex lasers but also deepen the understanding of the mode properties of carbon dot lasers.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"80 4 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427060","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

Angle Multifunctional Dichroism in Metasurfaces

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-15 DOI: 10.1021/acsphotonics.4c01999

Neuton Li, Jihua Zhang, Dragomir N. Neshev, Andrey A. Sukhorukov

引用次数: 0

Metaoptic Computational Imaging

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-13 DOI: 10.1021/acsphotonics.4c02266

Charles Roques-Carmes, Kai Wang, Yuanmu Yang, Arka Majumdar, Zin Lin

{"title":"Metaoptic Computational Imaging","authors":"Charles Roques-Carmes, Kai Wang, Yuanmu Yang, Arka Majumdar, Zin Lin","doi":"10.1021/acsphotonics.4c02266","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02266","url":null,"abstract":"Metasurfaces, ultrathin structures composed of subwavelength optical elements, have revolutionized light manipulation by enabling precise control over electromagnetic waves’ amplitude, phase, polarization, and spectral properties. Concurrently, computational imaging leverages algorithms to reconstruct images from optically processed signals, overcoming the limitations of traditional imaging systems. This Perspective explores the synergistic integration of metaoptics and computational imaging, “metaoptic computational imaging”, which combines the physical wavefront shaping ability of metasurfaces with advanced computational algorithms to enhance imaging performance beyond conventional limits. We discuss how metaoptic computational imaging addresses the inherent limitations of single-layer metasurfaces in achieving multifunctionality without compromising efficiency. By treating metasurfaces as physical preconditioners and codesigning them with reconstruction algorithms through end-to-end (inverse) design, it is possible to jointly optimize the optical hardware and computational software. Advanced applications and new frontiers in the field enabled by metaoptic computational imaging are highlighted, including phase imaging and quantum state measurement.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"1 4 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417925","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

Efficient, Polarization-Diverse State Generation with Tunable Black Phosphorus Cavity Heterostructures and Active Metasurfaces

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-13 DOI: 10.1021/acsphotonics.4c01933

Samuel K. W. Seah, Souvik Biswas, Claudio U. Hail, Min Seok Jang, Harry A. Atwater

{"title":"Efficient, Polarization-Diverse State Generation with Tunable Black Phosphorus Cavity Heterostructures and Active Metasurfaces","authors":"Samuel K. W. Seah, Souvik Biswas, Claudio U. Hail, Min Seok Jang, Harry A. Atwater","doi":"10.1021/acsphotonics.4c01933","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01933","url":null,"abstract":"The dynamic, on-demand generation of different polarization states of light has diverse applications in optical communications, imaging, sensing, and quantum information processing. Such active polarization control is typically achieved using active metasurfaces or spatial light modulators based on liquid crystal media that have limited switching speeds and conversion efficiency. Layered van der Waals low-dimensional materials provide new avenues for more versatile polarization control with an operating frequency several orders of magnitude higher than that for liquid crystal devices. Here, we report the design of a heterostructure for efficient, polarization-selective free-space phase modulation or amplitude modulation by integrating electrically tunable, optically anisotropic black phosphorus (BP) into high quality factor (Q ∼ 7500 to 11000) distributed Bragg reflector-based Fabry–Perot cavities. These devices achieve a respective phase tuning range of 210° and an amplitude tuning range of 99%. We also introduce designs for BP heterostructures that employ two twisted cross-aligned BP layers that are able to access polarization states covering 75% of the Poincaré sphere from voltage tuning alone. Finally, we introduce a design for an active metasurface polarization beam splitter based on our cavity heterostructures with an electrically tunable angle of diffraction that leverages spatially engineered polarization gradients. These structures open a pathway for further structuring of light by controlling the phase and amplitude along independent orthogonal directions.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"16 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417923","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

Inverse Design of Unitary Transmission Matrices in Silicon Photonic Coupled Waveguide Arrays Using a Neural Adjoint Model

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-12 DOI: 10.1021/acsphotonics.4c02081

Thomas W. Radford, Peter R. Wiecha, Alberto Politi, Ioannis Zeimpekis, Otto L. Muskens

{"title":"Inverse Design of Unitary Transmission Matrices in Silicon Photonic Coupled Waveguide Arrays Using a Neural Adjoint Model","authors":"Thomas W. Radford, Peter R. Wiecha, Alberto Politi, Ioannis Zeimpekis, Otto L. Muskens","doi":"10.1021/acsphotonics.4c02081","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02081","url":null,"abstract":"The development of low-loss reconfigurable integrated optical devices enables further research into technologies including photonic signal processing, analogue quantum computing, and optical neural networks. Here, we introduce digital patterning of coupled waveguide arrays as a platform capable of implementing unitary matrix operations. Determining the required device geometry for a specific optical output is computationally challenging and requires a robust and versatile inverse design protocol. In this work we present an approach using high speed neural network surrogate-based gradient optimization, capable of predicting patterns of refractive index perturbations based on switching of the ultralow loss chalcogenide phase change material, antimony triselinide (Sb2Se3). Results for a 3 × 3 silicon waveguide array are presented, demonstrating control of both amplitude and phase for each transmission matrix element. Network performance is studied using neural network optimization tools such as data set augmentation and supplementation with random noise, resulting in an average fidelity of 0.94 for unitary matrix targets. Our results show that coupled waveguide arrays with perturbation patterns offer new routes for achieving programmable unitary operators, or Hamiltonians for quantum simulators, with a reduced footprint compared to conventional interferometer-mesh technology.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"41 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143394007","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

Photon-Atom Hybrid Decision-Framework with Concurrent Exploration Acceleration

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-12 DOI: 10.1021/acsphotonics.4c02467

Feng Lu, Jian-Peng Dou, Hao Tang, Xiao-Yun Xu, Chao-Ni Zhang, Wen-Hao Zhou, Hong Sun, Xian-Min Jin

{"title":"Photon-Atom Hybrid Decision-Framework with Concurrent Exploration Acceleration","authors":"Feng Lu, Jian-Peng Dou, Hao Tang, Xiao-Yun Xu, Chao-Ni Zhang, Wen-Hao Zhou, Hong Sun, Xian-Min Jin","doi":"10.1021/acsphotonics.4c02467","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02467","url":null,"abstract":"Decision-making enables artificial intelligence to dynamically adjust and acquire knowledge from experiences, distinguishing it from traditional computing intelligence based on predetermined and rigid logic rules. However, the hardness of decision-making within the Turing framework increases exponentially with the number of decisions and decision-agents, thereby limiting the speed and scaling for artificial intelligence to process intensity-heavy tasks. Here, by introducing the quantum advantages of both photons and atoms, we report a photon-atom hybrid decision framework, whose decision-making exploration is accomplished through time-correlated atomic excitation within a quantum memory material. We develop a pseudophotonic blockade effect within memory materials to ensure that decision-making conflicts are hardly generated. With exploring a two-agent N-armed bandit in a concurrent manner, an N2 times acceleration of decision-making exploration compared to nonconcurrent methods is demonstrated. Furthermore, the experimentally characterized performance in preference satisfaction and conflict avoidance shows an advanced capacity for distributed decision-making on a significant scale. Our research advances scalable distributed frameworks to address future reinforcement learning challenges.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"18 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143393769","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

Gate-Tunable Current Polarity Switching in p-NiO/n-ZnGa2O4 Heterojunction Field-Effect Phototransistors for Secure Optical Communication

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-02-11 DOI: 10.1021/acsphotonics.4c02509

Dongyang Han, Jiayi Liu, Shujun Zhu, Chang Liu, Kaisen Liu, Xiaoli Zhang, Ningtao Liu, Jichun Ye, Wenrui Zhang

{"title":"Gate-Tunable Current Polarity Switching in p-NiO/n-ZnGa2O4 Heterojunction Field-Effect Phototransistors for Secure Optical Communication","authors":"Dongyang Han, Jiayi Liu, Shujun Zhu, Chang Liu, Kaisen Liu, Xiaoli Zhang, Ningtao Liu, Jichun Ye, Wenrui Zhang","doi":"10.1021/acsphotonics.4c02509","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02509","url":null,"abstract":"Secure optical communication is crucial for protecting sensitive data in modern communication systems. Herein, we report the gate-tunable current polarity switching phenomenon in p-NiO/n-ZnGa2O4 heterojunction field-effect phototransistors, offering a novel strategy for secure optical communication. The low carrier concentration in the n-type ZnGa2O4 channel layer enables the transistor to persist in the cutoff state under dark conditions. Interestingly, the forward gate voltage application induces a polarity reversal of the drain-source current, with the dark current and photocurrent demonstrating a transition from 0.621 nA/34.53 μA at a gate voltage of 0 V to −0.438 nA/–164.08 μA at a gate voltage of 40 V. Moreover, the device demonstrates outstanding solar-blind ultraviolet (UV) photodetection performance, with responsivities of 53.2 A/W and 252.3 A/W, decay times of 16.44 and 29.35 ms, and rejection ratios exceeding 104 at gate voltages of 0 and 40 V, respectively. By leveraging the gate voltage and solar-blind UV light as inputs, an optoelectronic exclusive OR (XOR) logic gate scheme is designed, where the drain-source current acts as the output. This enables the encoding of optical signals with gate voltage as an encryption signal, ensuring secure information transmission. Even if intercepted, transmitted data remain indecipherable without the encryption signal at the receiver. This research provides a promising avenue for developing advanced secure optical communication technologies.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"2 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143393310","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