ACS Photonics最新文献_第2页

Nonlinear Metafiber: On-fiber 3D Nanoprinted Metalenses to Enhance Ultrafast Supercontinuum Generation in Suspended Core Fibers 非线性超纤维：纤维上3D纳米打印的超透镜增强悬浮芯纤维的超连续统生成

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-20 DOI: 10.1021/acsphotonics.4c02479

Shahrzad Hosseinabadi, Johannes Hofmann, Torsten Wieduwilt, Xue Qi, Michael H. Frosz, Markus A. Schmidt

{"title":"Nonlinear Metafiber: On-fiber 3D Nanoprinted Metalenses to Enhance Ultrafast Supercontinuum Generation in Suspended Core Fibers","authors":"Shahrzad Hosseinabadi, Johannes Hofmann, Torsten Wieduwilt, Xue Qi, Michael H. Frosz, Markus A. Schmidt","doi":"10.1021/acsphotonics.4c02479","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02479","url":null,"abstract":"Supercontinuum generation (SCG) using ultrashort pulses is a highly efficient technique for achieving broad nonlinear frequency conversion, with suspended core fibers (SCFs) being particularly effective due to their high modal field concentration and precise dispersion control. However, their small core sizes, typically a few micrometers, pose significant challenges for light incoupling, resulting in a low and unstable coupling that often requires complex high numerical aperture bulk optics that are both costly and difficult to integrate. This work addresses this key challenge by introducing the concept of nonlinear metafibers. By implementing tailored metalenses directly on the end faces of SCFs using advanced 3D nanoprinting, we demonstrate alignment-free and highly robust coupling of broadband ultrashort pulses into small-core SCFs. This first demonstration of a nonlinear metafiber achieves full all-fiber integration, eliminating the need for bulky external optical components and facilitating broadband soliton-based SCG. The flexibility of this novel approach, which effectively overcomes a fundamental problem in nonlinear photonics, has broad applicability in various fields including quantum technology and life sciences. In addition, the concept extends beyond SCFs to other fiber types and on-chip waveguides, paving the way for new opportunities in nonlinear photonics and integrated optics. This study establishes nonlinear metafibers as a transformative platform with the potential to advance applications in which efficient, compact, and robust nonlinear photonic systems are critical.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"15 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329424","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

Second-Harmonic and Sum-Frequency Generation in Silicon Nitride Photonics Integrated with Cadmium Sulfide Nanowire 硫化镉纳米线集成氮化硅光子学的二次谐波和和频产生

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-20 DOI: 10.1021/acsphotonics.5c00878

Jianguo Wang, Junling Qu, Binbin Wang, Ruixuan Yi, Liang Fang, Like Shui, Zhonglin Xie, Chenyang Zhao, Jie Wang, Jianlin Zhao, Xuetao Gan

{"title":"Second-Harmonic and Sum-Frequency Generation in Silicon Nitride Photonics Integrated with Cadmium Sulfide Nanowire","authors":"Jianguo Wang, Junling Qu, Binbin Wang, Ruixuan Yi, Liang Fang, Like Shui, Zhonglin Xie, Chenyang Zhao, Jie Wang, Jianlin Zhao, Xuetao Gan","doi":"10.1021/acsphotonics.5c00878","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00878","url":null,"abstract":"We demonstrate second-order (χ(2)) nonlinear responses including second-harmonic generation (SHG) and sum-frequency generation (SFG) from the silicon nitride (SiN) waveguides by deterministically incorporating χ(2)-active subwavelength CdS nanowires (NWs) inside them, addressing the χ(2) deficiency of the SiN for being centrosymmetric. By engineering the dimensions of the hybrid CdS NW-SiN waveguide, we achieved modal phase-matching for SHG, yielding conversion efficiencies of 0.76% W–1 from a stripe waveguide. By implanting a microring resonator configuration, ∼ 100 times higher conversion efficiencies of them were obtained. Finally, using the χ(2)-based optical wave-mixing of the hybrid waveguide, we explored its use as an autocorrelator for the on-chip measurement of the ultrafast laser pulse duration and achieved a result only 4% deviated from that of a commercial product. This hybrid CdS NW-SiN waveguide strategy solved the lack of the χ(2)-related functionalities of the SiN waveguide platform and paves the way for its applications in integrated nonlinear photonics.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"14 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329426","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

Resonance Fluorescence from a Single Quantum Dot in a Nanopost Optical Cavity 纳米柱光学腔中单量子点的共振荧光

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-20 DOI: 10.1021/acsphotonics.5c00580

Maxime Gaignard, Matteo Finazzer, Clemens Spinnler, Giang N. Nguyen, Saptarshi Kotal, Alberto Artioli, Yann Genuist, Niels Gregersen, Jean-Philippe Poizat, Jean-Michel Gérard, Richard J. Warburton, Julien Claudon

{"title":"Resonance Fluorescence from a Single Quantum Dot in a Nanopost Optical Cavity","authors":"Maxime Gaignard, Matteo Finazzer, Clemens Spinnler, Giang N. Nguyen, Saptarshi Kotal, Alberto Artioli, Yann Genuist, Niels Gregersen, Jean-Philippe Poizat, Jean-Michel Gérard, Richard J. Warburton, Julien Claudon","doi":"10.1021/acsphotonics.5c00580","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00580","url":null,"abstract":"Scaling-up photonic quantum technologies will require the parallel operation of on-demand sources of identical single photons. In this context, broadband photonic structures embedding a single quantum dot (QD) are particularly appealing, as optimal source performance can be maintained upon QD spectral tuning. The nanopost─a nanocavity built with a segment of photonic wire─offers a broadband Purcell effect and a directive output beam. So far, however, QD-nanopost devices were only characterized using nonresonant optical excitation. Here, we employ a continuous wave laser to resonantly drive a single QD in a nanopost and detect its resonance fluorescence. Even though the nanopost introduces a significant optical roughness at the scale of the focused laser spot, a cross-polarization scheme leads to an excellent rejection of the excitation laser. We extensively characterize the QD optical emission by combining linescans and intensity correlation measurements, which are jointly analyzed with an analytical model. The emission features a pronounced antibunching (g(2)(0) = 0.02), close to the one of an ideal two-level system. For small driving powers, the homogeneous (total) spectral linewidth is a factor of 1.4 (5) above the Fourier limit. Combined with future device improvements, these results mark an important step toward the realization of bright and widely tunable sources of indistinguishable single photons.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"607 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329377","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

Room-Temperature Continuous-Wave Random Lasing from a GaAs Thin Film 砷化镓薄膜的室温连续波随机激光

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-20 DOI: 10.1021/acsphotonics.5c00602

Bingheng Meng, Yubin Kang, Xuanchi Yu, Xuanyu Zhang, Jilong Tang, Longxing Su, Zhipeng Wei, Rui Chen

{"title":"Room-Temperature Continuous-Wave Random Lasing from a GaAs Thin Film","authors":"Bingheng Meng, Yubin Kang, Xuanchi Yu, Xuanyu Zhang, Jilong Tang, Longxing Su, Zhipeng Wei, Rui Chen","doi":"10.1021/acsphotonics.5c00602","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00602","url":null,"abstract":"The development of optically pumped continuous-wave (CW) random lasers is critical for advancing high-density integrated optoelectronic devices. However, achieving room temperature CW random lasing in GaAs thin films remains challenging due to insufficient optical feedback and thermal instability. This Article systematically investigates random lasing based on GaAs/AlAs/GaAs thin film under CW optical pumping. By introducing a low refractive index AlAs interlayer with controlled surface roughness, we realize the enhancement of scattering efficiency and optical feedback while preserving high crystal quality. The optimized structure exhibits a net optical modal gain of 64 cm–1 and a high characteristic temperature of 221 K, indicating superior light amplification efficiency and thermal stability. Finally, a proof-of-concept demonstration of speckle-free laser imaging using the low spatial coherence of the random lasers has been conducted. This research provides valuable insights into the development of GaAs-based CW random lasers and highlights their potential for applications in optical communications, sensing, and biomedical imaging.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"6 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335008","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

Topology-Optimized Interference-Based Compact Photonic Logic Units 拓扑优化干涉型紧凑型光子逻辑单元

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-19 DOI: 10.1021/acsphotonics.5c00026

Berkay Neseli, Junhyeong Kim, Seokjin Hong, Jae-Yong Kim, Hyo-Hoon Park, Mirbek Turduev, Hamza Kurt

{"title":"Topology-Optimized Interference-Based Compact Photonic Logic Units","authors":"Berkay Neseli, Junhyeong Kim, Seokjin Hong, Jae-Yong Kim, Hyo-Hoon Park, Mirbek Turduev, Hamza Kurt","doi":"10.1021/acsphotonics.5c00026","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00026","url":null,"abstract":"Interference is a fundamental yet crucial phenomenon in photonics, enabling precise control over light’s phase, amplitude, and intensity. This principle has enabled significant improvements in various application areas, such as signal processing, spectroscopy, optical computing, and data communication. Leveraging this principle, we introduce compact, topology-optimized, inverse-designed devices that advance the scalability and efficiency of photonic computing systems. Two devices are demonstrated: a logic gate performing basic AND and OR operations and a 1-bit optical magnitude comparator. By integrating these devices, our design simplifies circuit complexity, reduces the footprint, and lowers energy consumption in photonic circuits. Both devices are highly compact, with dimensions of 5 × 6 μm2, and fabricated on a silicon-on-insulator (SOI) platform using e-beam lithography. Experimental results conducted at around 1550 nm closely match simulations, with the AND gate achieving a contrast ratio of 5.22 dB and the OR gate demonstrating transmission values as high as −0.88 dB, confirming their high efficiency, high bandwidth, and reliability. These findings highlight the transformative potential of interference-based, inverse-designed linear photonic devices in enabling highly integrated, robust, and energy-efficient on-chip optical computing systems for networks, processors, and programmable photonics.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"38 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329378","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

Observation of Anisotropic Wavelength-Dependent Acousto-Optic Scattering on X-Cut Thin-Film Lithium Niobate x -切割铌酸锂薄膜声光散射的各向异性观察

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-19 DOI: 10.1021/acsphotonics.5c00582

Haotian Shi, Chukun Huang, Tianheng Zhang, Youwen Zhang, Tiancheng Zheng, Qiang Huang, Junqiang Sun

{"title":"Observation of Anisotropic Wavelength-Dependent Acousto-Optic Scattering on X-Cut Thin-Film Lithium Niobate","authors":"Haotian Shi, Chukun Huang, Tianheng Zhang, Youwen Zhang, Tiancheng Zheng, Qiang Huang, Junqiang Sun","doi":"10.1021/acsphotonics.5c00582","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00582","url":null,"abstract":"We investigate an integrated acousto-optic (AO) device featuring electrically driven anisotropic surface acoustic waves on X-cut thin-film lithium niobate (TFLN). Notably, we observe a novel phenomenon of wavelength-dependent periodic fluctuations in anisotropic AO scattering with different in-plane orientations. This effect is attributed to inter-polarization scattering involving the fundamental modes combined with intramodal AO interaction within the TFLN waveguide. Therefore, the trade-off between efficiency and fluctuation must be carefully considered. When the acoustic excitation direction is 150° (relative to the −Y-axis of LN), the Rayleigh acoustic mode R0 achieves a maximum intramodal scattering efficiency of −20.9 dB at 2.496 GHz, which corresponds to a VπL of 2.34 V·cm. Additionally, the higher-order acoustic mode at 3.544 GHz demonstrates a moderate conversion efficiency of −26.7 dB under a 75° emission angle, with a minimal wavelength-dependent fluctuation of 1.1 dB during AO modulation operation over a bandwidth exceeding 82 nm. By carefully selecting specific orientations or wavelengths, it is possible to tailor diverse applications for anisotropic TFLN AO devices, such as highly flattened AO modulation, enhanced intramodal AO interaction, and efficient inter-polarization conversion. These findings pave the way for developing integrated photonic–phononic interaction devices on widely utilized anisotropic material platforms.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"51 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329425","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

Synthesis of Arbitrary Interference Patterns Using a Single Galvanometric Mirror and Its Application to Structured Illumination Microscopy 用单振镜合成任意干涉图样及其在结构照明显微镜中的应用

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-19 DOI: 10.1021/acsphotonics.5c00516

Ke Guo, Abderrahim Boualam, James D. Manton, Christopher J. Rowlands

引用次数: 0

Ultrahigh Resolution Reconstructive Spectrometer Using a Disordered Cavity on Thin-Film Lithium Niobate 利用无序腔对铌酸锂薄膜进行超高分辨率重构光谱仪

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-19 DOI: 10.1021/acsphotonics.5c00663

Xijie Wang, Ziliang Ruan, Gengxin Chen, Shengqi Gong, Zexu Wang, Kaixuan Chen, Liu Liu

引用次数: 0

Bionic Scotopic-Adaptive Ternary CdSxSe1–x Memory Phototransistor for Weak RGB Light Perception 用于弱RGB光感知的仿生局部自适应三元CdSxSe1-x记忆光电晶体管

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-19 DOI: 10.1021/acsphotonics.5c00707

Zhibin Shao, Peihao Wu, Ming Wu, Lei Wang, Na Sai, Xingxing Hong, Meng Xu, Jiangfeng Gong, Jiang Yue, Hong Wang

{"title":"Bionic Scotopic-Adaptive Ternary CdSxSe1–x Memory Phototransistor for Weak RGB Light Perception","authors":"Zhibin Shao, Peihao Wu, Ming Wu, Lei Wang, Na Sai, Xingxing Hong, Meng Xu, Jiangfeng Gong, Jiang Yue, Hong Wang","doi":"10.1021/acsphotonics.5c00707","DOIUrl":"https://doi.org/10.1021/acsphotonics.5c00707","url":null,"abstract":"Bionic scotopic-adaptive phototransistors, inspired by the rod cells of the human retina, exhibit remarkable potential for enhancing the efficiency of vision systems in diverse applications, including security surveillance, medical imaging, and precision laser machining. Nonetheless, similar to their biological counterparts, these devices face a critical limitation: their scotopic-adaptive photoresponse struggles to comprehensively encompass the visible spectrum, impeding color differentiation under weak illumination. In this study, we present a bionic memory phototransistor (MPT) based on ternary CdSxSe1–x nanoribbons, which integrate the scotopic sensitivity of rods with the chromatic acuity of cones to enable RGB color discernment in weak-light conditions. The CdSxSe1–x nanoribbons synthesized in a selenium-rich atmosphere exhibit fewer chalcogen vacancies and a progressively reduced photoelectric storage window, confirming the pivotal role of these vacancies as surface oxygen adsorption sites forming a storage medium. By leveraging the charge storage accumulation effect and energy band engineering, we achieve weak light detection across the broad visible range of 300–725 nm, with a specific detectivity surpassing 1017 Jones. Through the synergistic operation of CdS0.30Se0.70, CdS0.58Se0.42, and CdS MPTs with tailored spectral properties, we accomplish detection and discrimination of weak RGB light at 200 nW·cm–2 under scotopic-adaptive modes. This integration of rod-inspired scotopic adaptation with cone-like chromatic discrimination offers an innovative design concept for the development of next-generation visual perception technologies.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"22 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319539","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

IF 6.5 1区物理与天体物理

ACS Photonics Pub Date : 2025-06-18

Yaru Li, Jiaxing Gao, Siying Cheng, Xiang Li, Jiapeng Sun, Hang Yu, Wei Jin, Yu Zhang*, Zhihai Liu*, Xinghua Yang, Yifan Qin and Libo Yuan,

引用次数: 0