ACS Photonics最新文献

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High Responsivity Flexible β-Ga2O3/IGZO Ultraviolet Photodetectors Enabled by Zr-Modulated Quasi-Two-Dimensional Electron Gas Interfacial Confinement zr调制准二维电子气体界面约束实现高响应性柔性β-Ga2O3/IGZO紫外探测器
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-08 DOI: 10.1021/acsphotonics.5c00975
Jiangyiming Jiang, Simeng Wu, Zijian Ding, Qian Xin, Yun Tian
{"title":"High Responsivity Flexible β-Ga2O3/IGZO Ultraviolet Photodetectors Enabled by Zr-Modulated Quasi-Two-Dimensional Electron Gas Interfacial Confinement","authors":"Jiangyiming Jiang, Simeng Wu, Zijian Ding, Qian Xin, Yun Tian","doi":"10.1021/acsphotonics.5c00975","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00975","url":null,"abstract":"Quasi-two-dimensional electron gas (quasi-2DEG), with unique quantum confinement and high electron mobility, holds transformative promise for flexible Ga<sub>2</sub>O<sub>3</sub>-based heterojunction ultraviolet photodetectors (UVPDs). However, the intrinsic contradiction between flexible-limit temperature and crystalline quality induces oxygen vacancy (V<sub>O</sub>) related recombination in amorphous Ga<sub>2</sub>O<sub>3</sub>, suppressing quasi-2DEG formation and crippling UVPDs’ performance. Herein, we devise a Zr-modulated interface engineering strategy, where Zr-doped β-Ga<sub>2</sub>O<sub>3</sub> (ZrGaO) films with ultralow V<sub>O</sub> concentrations are synergistically integrated with indium gallium zinc oxide (IGZO) to construct flexible heterojunction UVPDs. Zr incorporation effectively passivates interfacial defects while inducing favorable band alignment, thereby successfully facilitating the formation of a quasi-2DEG at the interface. Notably, the quantum confinement effect resulted in a significant 2.1-fold increase in carrier mobility, enabling a synergistic improvement in carrier transport efficiency and photogenerated electron–hole separation. Ultimately, the device demonstrates exceptional performance metrics under 254 nm illumination: an ultrahigh photo-to-dark current ratio of 1.37 × 10<sup>5</sup>, remarkable responsivity of 1.65 × 10<sup>2</sup> A W<sup>–1</sup>, and detectivity reaching 1.06 × 10<sup>14</sup> Jones, surpassing most reported flexible UVPDs. Furthermore, the flexible device retained stable optoelectronic performance after 1,000 bending cycles under varying angles, demonstrating exceptional mechanical durability. This work demonstrates the potential of Zr-modulated interface engineering in inducing quasi-2DEG effects for flexible optoelectronics, establishing a scalable design strategy for next-generation high-performance wearable UV detection systems.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"36 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241776","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
Selective Excitation of Coupled Resonators via Complex Frequency Driving: Enhanced Efficiency and Crosstalk Suppression 复频驱动耦合谐振腔的选择性激励:提高效率和抑制串扰
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-08 DOI: 10.1021/acsphotonics.5c01244
Deepanshu Trivedi, Laraib Niaz, Andrea Alù, Alex Krasnok
{"title":"Selective Excitation of Coupled Resonators via Complex Frequency Driving: Enhanced Efficiency and Crosstalk Suppression","authors":"Deepanshu Trivedi, Laraib Niaz, Andrea Alù, Alex Krasnok","doi":"10.1021/acsphotonics.5c01244","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c01244","url":null,"abstract":"Controlling individual elements of coupled resonator systems poses a significant challenge, as conventional real-frequency pulses suffer from inefficiency and crosstalk, limiting fidelity and scalability. To address this challenge, we propose and explore the use of complex frequency excitations, tailoring the driving signal waveform to match the target complex reflection zeros. We demonstrate that complex frequency driving can achieve near-unity selected energy storage efficiency (η ≈ 100%) in a single resonator, substantially exceeding the performance of optimized Gaussian pulses (η<sub>max</sub> ≈ 80%). In a coupled three-resonator system, our method yields significantly higher efficiency (η ≈ 92–95%) along with vastly improved selectivity and crosstalk suppression compared to conventional Gaussian pulse excitations of the same duration. Our technique achieves dynamic critical coupling, providing a powerful paradigm for high-fidelity, selective control, crucial for advancing scalable complex systems for sensing and computing.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"69 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241399","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
Realization of a Pre-Sample Photonic-Based Free-Electron Modulator in Ultrafast Transmission Electron Microscopes 超快透射电子显微镜中预样品光子自由电子调制器的实现
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-08 DOI: 10.1021/acsphotonics.5c00549
Beatrice Matilde Ferrari, Cameron James Richard Duncan, Michael Yannai, Raphael Dahan, Paolo Rosi, Irene Ostroman, Maria Giulia Bravi, Arthur Niedermayr, Tom Lenkiewicz Abudi, Yuval Adiv, Tal Fishman, Sang Tae Park, Dan Masiel, Thomas Lagrange, Fabrizio Carbone, Vincenzo Grillo, F. Javier García de Abajo, Ido Kaminer, Giovanni Maria Vanacore
{"title":"Realization of a Pre-Sample Photonic-Based Free-Electron Modulator in Ultrafast Transmission Electron Microscopes","authors":"Beatrice Matilde Ferrari, Cameron James Richard Duncan, Michael Yannai, Raphael Dahan, Paolo Rosi, Irene Ostroman, Maria Giulia Bravi, Arthur Niedermayr, Tom Lenkiewicz Abudi, Yuval Adiv, Tal Fishman, Sang Tae Park, Dan Masiel, Thomas Lagrange, Fabrizio Carbone, Vincenzo Grillo, F. Javier García de Abajo, Ido Kaminer, Giovanni Maria Vanacore","doi":"10.1021/acsphotonics.5c00549","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00549","url":null,"abstract":"Spatial and temporal light modulation is a well-established technology that enables dynamic shaping of the phase and amplitude of optical fields, significantly enhancing the resolution and sensitivity of imaging methods. Translating this capability to electron beams is highly desirable within the framework of a transmission electron microscope (TEM) to benefit from the nanometer spatial resolution of this instrument. In this work, we report on the experimental realization of a photonic-based free-electron modulator integrated into the column of two ultrafast TEMs for presample electron-beam shaping. Electron-photon interaction is employed to coherently modulate both the transverse and longitudinal components of the electron wave function (through lateral phase imprinting and temporal profiling, respectively), while leveraging dynamically controlled optical fields and tailored designs of the electron-laser-sample interaction geometry. Using energy- and momentum-resolved electron detection, we successfully reconstruct the shaped electron wave function at the TEM sample plane. These results demonstrate the ability to manipulate the electron wave function before probing the sample, paving the way for photonics-inspired imaging and spectroscopy techniques in ultrafast electron microscopy.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"105 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241336","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
Quasi-Bound States in the Continuum in Disordered Systems 无序系统中连续体中的准束缚态
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-06 DOI: 10.1021/acsphotonics.5c01573
Jiawei Zhang, Andong Liu, Jin Wang, Zhenggao Dong
{"title":"Quasi-Bound States in the Continuum in Disordered Systems","authors":"Jiawei Zhang, Andong Liu, Jin Wang, Zhenggao Dong","doi":"10.1021/acsphotonics.5c01573","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c01573","url":null,"abstract":"Disorders are often considered harmful defects in a system, which are unavoidable in sample fabrication and lead to the disappearance of high-quality states in experiments. Massive research aims to improve fabrication methods to minimize the adverse effects of disorder in the system. Here, a system with a high-quality state that is immune to disorder in the system is proposed, where q-BIC (quasi-bound states in the continuum) could be induced by topological phase transitions in disordered systems. In the proposed structure, the emergence of q-BIC could be controlled by the degree of disorder, providing new insights into how to control q-BIC. Such a mechanism can be realized in both one-dimensional grating systems and two-dimensional photonic crystal slabs. In addition, simulations and theoretical studies suggest that OAM (orbital angular momentum) light could also be generated with q-BIC in disordered systems. This study indicates that the exploration of BIC could be extended from periodic structures to disordered systems, giving researchers more freedom to explore the properties of BIC.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"22 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229396","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
Arbitrary-Charged Weyl Points in One-Dimensional Helical Photonic Crystals 一维螺旋光子晶体中的任意荷电Weyl点
IF 6.7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-05 DOI: 10.1021/acsphotonics.5c01105
Guan-Run Wang, , , Wei-Min Deng, , , Wen-Jie Chen*, , and , Jian-Wen Dong*, 
{"title":"Arbitrary-Charged Weyl Points in One-Dimensional Helical Photonic Crystals","authors":"Guan-Run Wang,&nbsp;, ,&nbsp;Wei-Min Deng,&nbsp;, ,&nbsp;Wen-Jie Chen*,&nbsp;, and ,&nbsp;Jian-Wen Dong*,&nbsp;","doi":"10.1021/acsphotonics.5c01105","DOIUrl":"10.1021/acsphotonics.5c01105","url":null,"abstract":"<p >The exotic physical properties of the Weyl points are mainly determined by their topological charges. Protected by crystallographic symmetries, Weyl charges on highly symmetric points can be larger than 1, termed multiple Weyl points. However, for all types of 3D crystals with 230 space groups, the orders of (screw) rotation axes can only be 1, 2, 3, 4, or 6, limiting the maximal Weyl charge of a natural 3D material to be 4. Here, we demonstrate that arbitrary-charged Weyl points can be stabilized in a 1D helical photonic crystal. Moreover, we give a complete theoretical analysis of all types of 1D HPCs and multiple Weyl points therein. Our findings offer a generally applicable strategy for designing arbitrary-ordered axes and realizing arbitrary-charged Weyl points in classical wave systems.</p>","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"12 10","pages":"5472–5479"},"PeriodicalIF":6.7,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229397","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
All-Optical Diodes via Nonreciprocal Nonlinear Absorption and Interfacial Charge Transfer in Two-Dimensional van der Waals Heterostructures 二维范德华异质结构中非互易非线性吸收和界面电荷转移的全光二极管
IF 6.7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-05 DOI: 10.1021/acsphotonics.5c01505
Erkang Li, , , Jinhong Liu, , , Yanqing Ge, , , Mingjian Shi, , , Yijie Wang, , , Chunhui Lu*, , , Yixuan Zhou*, , and , Xinlong Xu*, 
{"title":"All-Optical Diodes via Nonreciprocal Nonlinear Absorption and Interfacial Charge Transfer in Two-Dimensional van der Waals Heterostructures","authors":"Erkang Li,&nbsp;, ,&nbsp;Jinhong Liu,&nbsp;, ,&nbsp;Yanqing Ge,&nbsp;, ,&nbsp;Mingjian Shi,&nbsp;, ,&nbsp;Yijie Wang,&nbsp;, ,&nbsp;Chunhui Lu*,&nbsp;, ,&nbsp;Yixuan Zhou*,&nbsp;, and ,&nbsp;Xinlong Xu*,&nbsp;","doi":"10.1021/acsphotonics.5c01505","DOIUrl":"10.1021/acsphotonics.5c01505","url":null,"abstract":"<p >Nonreciprocity is fundamental to photonic and optoelectronic devices, such as all-optical diodes, for ultrafast optical signal processing. However, previous studies on nonreciprocity have been mainly based on linear optical responses rather than on nonlinear optical responses in recently developed two-dimensional (2D) van der Waals heterostructures. Herein, an all-optical diode prototype based on nonreciprocal nonlinear absorption and interfacial charge transfer is proposed and designed using both simulations and experiments based on readily available van der Waals heterostructures. The giant saturable absorption from 2D MXenes (NbC) and reverse saturable absorption from 2D chalcogenides (GaS) play a synergistic role in the designed all-optical diodes, which are characterized by a femtosecond laser-based Z-scan system. The comprehensive physical mechanism of this all-optical diode based on a 2D van der Waals NbC/GaS heterostructure designed by simulations is consistent with experiments, considering both nonreciprocal nonlinear absorption and interfacial effects. This all-optical diode based on a 2D van der Waals heterostructure features simplicity, scalability, stability, integration, and compatibility with complementary planar fabrication technology, which can further extend and miniaturize nonlinear photonic and optoelectric devices.</p>","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"12 10","pages":"5705–5715"},"PeriodicalIF":6.7,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229398","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
Design of Free-Space Dual-Polarization Receiving Antenna with Deep Learning for Coherent Photonic-Integrated LiDAR 相干光子集成激光雷达自由空间双极化深度学习接收天线设计
IF 6.7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-02 DOI: 10.1021/acsphotonics.5c01415
Yue Wang, , , Yu Wang, , , Zeyang Zhang, , , Chunhui Wang, , , Jinyong Wang, , , Kuang Zhang, , , Xing Yang, , , Guohui Yang*, , and , Yu Zhang*, 
{"title":"Design of Free-Space Dual-Polarization Receiving Antenna with Deep Learning for Coherent Photonic-Integrated LiDAR","authors":"Yue Wang,&nbsp;, ,&nbsp;Yu Wang,&nbsp;, ,&nbsp;Zeyang Zhang,&nbsp;, ,&nbsp;Chunhui Wang,&nbsp;, ,&nbsp;Jinyong Wang,&nbsp;, ,&nbsp;Kuang Zhang,&nbsp;, ,&nbsp;Xing Yang,&nbsp;, ,&nbsp;Guohui Yang*,&nbsp;, and ,&nbsp;Yu Zhang*,&nbsp;","doi":"10.1021/acsphotonics.5c01415","DOIUrl":"10.1021/acsphotonics.5c01415","url":null,"abstract":"<p >The dual-polarization receiver antenna (DPRA) is one of the most critical components in all-solid-state coherent detection LiDAR systems. Although various photonic receiver antennas have attempted to achieve coupling for differently polarized light, significant challenges regarding free-space optical coupling efficiency, compact footprint, and design complexity persist. This work proposes a high-efficiency compact DPRA by integrating a metalens module with a grating coupler module. The metalens module employs multishaped meta-atoms, effectively enhancing focusing efficiency for dual polarization states. The optimized grating coupler, designed through a hybrid deep learning network combined with a particle swarm optimization (PSO) algorithm, efficiently couples the focused beams from the metalens into two distinct waveguides. This approach substantially accelerates the grating coupler design process, achieving nearly 1000-fold speed improvement compared to conventional electromagnetic simulation methods. Experimental results validate the effectiveness of this system, showing final coupling efficiencies of −5.31 and −5.52 dB for 0 and 90° polarized light. This integrated architecture, compatible with multilayer lithography for further efficiency enhancement, provides an innovative solution for polarization-diverse light reception in LiDAR and optical communication systems.</p>","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"12 10","pages":"5658–5667"},"PeriodicalIF":6.7,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203897","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
Fiber Array-Integrated Metasurface Enabling Multichannel Bidirectional Communication with High Interchannel Isolation 光纤阵列集成的超表面使多通道双向通信具有高通道间隔离
IF 6.7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-02 DOI: 10.1021/acsphotonics.5c01499
Xipeng Lu, , , Jinke Li, , , Hongliang Li, , , Jin Tae Kim, , , Duk-Yong Choi, , and , Sang-Shin Lee*, 
{"title":"Fiber Array-Integrated Metasurface Enabling Multichannel Bidirectional Communication with High Interchannel Isolation","authors":"Xipeng Lu,&nbsp;, ,&nbsp;Jinke Li,&nbsp;, ,&nbsp;Hongliang Li,&nbsp;, ,&nbsp;Jin Tae Kim,&nbsp;, ,&nbsp;Duk-Yong Choi,&nbsp;, and ,&nbsp;Sang-Shin Lee*,&nbsp;","doi":"10.1021/acsphotonics.5c01499","DOIUrl":"10.1021/acsphotonics.5c01499","url":null,"abstract":"<p >Space-division multiplexing has the potential to meet the escalating channel capacity demands of sixth-generation (6G) high-performance optical backbone networks. However, conventional multiplexing devices exhibit fundamental limitations in simultaneously supporting multichannel bidirectional transmission and maintaining low interchannel crosstalk at high data rates. In this study, we present a compact, metasurface (MS)-integrated fiber array system that enables multichannel bidirectional optical communication with minimal crosstalk. The system incorporates a single, precisely designed MS mounted on the facet of a fiber array composed of three single-mode or multimode fibers. This MS performs efficient collimation of three incident free-space beams in the forward direction and enables low-aberration focusing in the reverse direction. The system, formed by combining three spatial fiber channels with wavelength-division multiplexing, achieves an aggregate data rate of 75 Gbps, with interchannel crosstalk suppressed below −38 dB. An average bit error rate of 2.2 × 10<sup>–11</sup> per channel is maintained across data rates ranging from 2.5 to 12.5 Gbps at high received power. This scalable and integrable platform for high-speed, low-latency, and bidirectional optical interconnects is suitable for advanced applications such as chip-to-chip optical links, data center communications, and optical neural networks.</p>","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"12 10","pages":"5723–5733"},"PeriodicalIF":6.7,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203899","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
Femtosecond Laser-Written Nanoablations Containing Bright Antibunched Emitters on Gallium Nitride 氮化镓上含有明亮反束发射体的飞秒激光写入纳米烧蚀
IF 6.7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-02 DOI: 10.1021/acsphotonics.5c01506
Yanzhao Guo*, , , Giulio Coccia, , , Vibhav Bharadwaj, , , Reina Yoshizaki, , , Katie M. Eggleton, , , John P. Hadden, , , Shane M. Eaton, , and , Anthony J. Bennett*, 
{"title":"Femtosecond Laser-Written Nanoablations Containing Bright Antibunched Emitters on Gallium Nitride","authors":"Yanzhao Guo*,&nbsp;, ,&nbsp;Giulio Coccia,&nbsp;, ,&nbsp;Vibhav Bharadwaj,&nbsp;, ,&nbsp;Reina Yoshizaki,&nbsp;, ,&nbsp;Katie M. Eggleton,&nbsp;, ,&nbsp;John P. Hadden,&nbsp;, ,&nbsp;Shane M. Eaton,&nbsp;, and ,&nbsp;Anthony J. Bennett*,&nbsp;","doi":"10.1021/acsphotonics.5c01506","DOIUrl":"10.1021/acsphotonics.5c01506","url":null,"abstract":"<p >Femtosecond laser-writing offers distinct capabilities for fabrication, including three-dimensional, multimaterial, and sub-diffraction-limited patterning. In particular, demonstrations of laser-written quantum emitters and photonic devices with superior optical properties have attracted attention. Recently, gallium nitride (GaN) has been reported to host quantum emitters with narrow and bright zero-phonon photoluminescence from ultraviolet to telecom ranges. However, emitters formed during epitaxy are randomly positioned, and until now, it has not been possible to fabricate quantum emitters in ordered arrays. In this paper, we employ femtosecond laser writing to create nanoablations with sub-diffraction-limited diameter and use rapid thermal annealing to activate co-located stable emitters. The emitters show a MHz antibunched emission with a sharp spectral peak at room temperature. Our study not only presents an efficient approach to laser-written nanofabrication on GaN but also offers a promising pathway for the deterministic creation of quantum emitters in GaN, shedding light on the underlying mechanisms involved.</p>","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"12 10","pages":"5716–5722"},"PeriodicalIF":6.7,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsphotonics.5c01506","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Super-Resolution Quantum Imaging by Adaptively Maximizing Single Photon Fisher Information 自适应最大化单光子费雪信息的超分辨率量子成像
IF 6.7 1区 物理与天体物理
ACS Photonics Pub Date : 2025-10-01 DOI: 10.1021/acsphotonics.5c01204
Hyunsoo Choi, , , Zubin Jacob*, , and , Hyoung Won Baac*, 
{"title":"Super-Resolution Quantum Imaging by Adaptively Maximizing Single Photon Fisher Information","authors":"Hyunsoo Choi,&nbsp;, ,&nbsp;Zubin Jacob*,&nbsp;, and ,&nbsp;Hyoung Won Baac*,&nbsp;","doi":"10.1021/acsphotonics.5c01204","DOIUrl":"10.1021/acsphotonics.5c01204","url":null,"abstract":"<p >Resolving point sources below the Rayleigh limit in optical imaging presents a remarkable challenge. Although quantum-inspired imaging methods offer potential solutions, they often suffer from limitations such as dependency on prior information, noise sensitivity, and poor scalability. To overcome these limitations, we introduce super-resolution quantum imaging (SRQI), which leverages multiparameter quantum Fisher information maximization with analytical probability optimization. SRQI demonstrates approximately 100-fold higher estimation accuracy than prior approaches, achieves infinitesimal resolution for unequal brightness sources under extremely low separation conditions, and scales to localizing 10 sources within a sub-Rayleigh region. These results identify SRQI as a precise and scalable solution for super-resolution imaging without relying on prior information, thereby representing a critical advancement in quantum imaging.</p>","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"12 10","pages":"5522–5527"},"PeriodicalIF":6.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203901","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
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