ACS Photonics最新文献

Correction: The road to a world-unified approach to the management of patients with gastric intestinal metaplasia: a review of current guidelines 更正：胃肠化生患者管理的世界统一之路：现行指南回顾

IF 24.5 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-01 DOI: 10.1136/gutjnl-2024-333029corr1

BMJ Publishing Group Ltd and British Society of Gastroenterology

引用次数: 0

Coupling Single Molecules to DNA-Based Optical Antennas with Position and Orientation Control

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-11-19 DOI: 10.1021/acsphotonics.4c01506

Aleksandra K. Adamczyk, Fangjia Zhu, Daniel Schäfer, Yuya Kanehira, Sergio Kogikoski, Jr., Ilko Bald, Sebastian Schlücker, Karol Kołątaj, Fernando D. Stefani, Guillermo P. Acuna

{"title":"Coupling Single Molecules to DNA-Based Optical Antennas with Position and Orientation Control","authors":"Aleksandra K. Adamczyk, Fangjia Zhu, Daniel Schäfer, Yuya Kanehira, Sergio Kogikoski, Jr., Ilko Bald, Sebastian Schlücker, Karol Kołątaj, Fernando D. Stefani, Guillermo P. Acuna","doi":"10.1021/acsphotonics.4c01506","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01506","url":null,"abstract":"Optical antennas have been extensively employed to manipulate the photophysical properties of single-photon emitters. Coupling between an emitter and a given resonant mode of an optical antenna depends mainly on three parameters: spectral overlap, relative distance, and relative orientation between the emitter’s transition dipole moment and the antenna. While the first two have already been extensively demonstrated, achieving full coupling control remains unexplored due to the challenges in manipulating at the same time both the position and orientation of single molecules. Here, we use the DNA origami technique to assemble a dimer optical antenna and position a single fluorescent molecule at the antenna gap with controlled orientation, predominately parallel or perpendicular to the antenna’s main axis. We study the coupling for both conditions through fluorescence measurements correlated with scanning electron microscopy images, revealing a 5-fold higher average fluorescence intensity when the emitter is aligned with the antenna’s main axis and a maximum fluorescence enhancement of ∼1400-fold. A comparison to realistic numerical simulations suggests that the observed distribution of fluorescence enhancement arises from small variations in the emitter orientation and gap size. This work establishes DNA origami as a versatile platform to fully control the coupling between emitters and optical antennas, trailblazing the way for self-assembled nanophotonic devices with optimized and more homogeneous performance.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"64 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670429","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

Ultracompact Polarization-Insensitive 1 × N Silicon-Based Optical Wavelength-Selective Switch by Leveraging I/O Waveguide Spacing Difference

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-11-19 DOI: 10.1021/acsphotonics.4c01606

Zhuping Fan, Xiongshuo Yan, Zhenyu Li, Xiao Ma, Tingting Lang, Dihai Dai, Xuyang Wang, Jun Zou

{"title":"Ultracompact Polarization-Insensitive 1 × N Silicon-Based Optical Wavelength-Selective Switch by Leveraging I/O Waveguide Spacing Difference","authors":"Zhuping Fan, Xiongshuo Yan, Zhenyu Li, Xiao Ma, Tingting Lang, Dihai Dai, Xuyang Wang, Jun Zou","doi":"10.1021/acsphotonics.4c01606","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01606","url":null,"abstract":"Wavelength-selective switches (WSS) have large potential applications in future high-capacity, low-latency, flexible, and energy-efficient data center optical networks. Here, a novel ultracompact 1 × N polarization-insensitive WSS is proposed on the silicon-on-insulator (SOI) platform. The WSS comprises one input port with a polarizing beam splitter and rotator (PBSR), two identical (M × N + 1) × (M + N) arrayed waveguide gratings (AWGs) cascaded with M 1 × N thermo-optic (TO) switches, and N output ports with polarization combiners. The AWG works as both a demultiplexer and multiplexer to eliminate the center wavelength mismatch induced by fabrication errors and to achieve an ultracompact footprint. The TO switches placed on loopback arms allow for the routing of each wavelength to any one of the N output ports. A new design of leveraging the I/O waveguide spacing difference between the loopback inputs and demultiplexing outputs of AWG is employed to eliminate waveguide crossings in a conventional WSS layout design. In experiment, a 12-channel 400 GHz spacing 1 × 2 WSS with a footprint of 1.67 × 1.7 mm2 is demonstrated. The minimal on-chip loss of 6.8 dB, best extinction ratio of 25 dB, and switching speed of 42 μs are achieved. The measured polarization-dependent loss is <0.5 dB and polarization-dependent wavelength shift is <0.08 nm.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"106 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142670428","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

Interfacially-Engineered HgTe Colloidal Quantum Dot Photodiodes Using Self-Assembled Monolayer 利用自组装单层的间隙工程碲化镉汞胶体量子点光电二极管

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-11-15 DOI: 10.1021/acsphotonics.4c00911

Mengxuan Yu, Binbin Wang, Runze Huang, Hang Xia, Jing Liu, Chengjie Deng, Jianbing Zhang, Liang Gao, Jiang Tang, Xinzheng Lan

{"title":"Interfacially-Engineered HgTe Colloidal Quantum Dot Photodiodes Using Self-Assembled Monolayer","authors":"Mengxuan Yu, Binbin Wang, Runze Huang, Hang Xia, Jing Liu, Chengjie Deng, Jianbing Zhang, Liang Gao, Jiang Tang, Xinzheng Lan","doi":"10.1021/acsphotonics.4c00911","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00911","url":null,"abstract":"Colloidal quantum dot (CQD) photodetectors hold promise for a new generation of infrared imaging with low cost and large array integration. In spite of great progress, it remains crucial to further improve the detector performance. In this study, we report HgTe CQD photodetectors with improved performance by leveraging an interfacial engineering approach. This is achieved by introducing self-assembled monolayers (SAMs) between the bottom electrode and the hole-transport CQD layer. Our analysis elucidates the multiple roles of SAMs in band alignment, interface passivation, and improved film quality in CQD devices. The HgTe CQD photodiodes achieve a suppressed dark current density of 4.59 × 10–7 A/cm2 at −0.4 V, coupled with an external quantum efficiency (EQE) of 54.59% and a record-specific detectivity of 2.1 × 1012 Jones at a wavelength ∼1700 nm. By integration with Si-based readout integrated circuits, a HgTe CQD short-wave infrared imager with 640 × 512 pixels was fabricated, and infrared imaging was finally demonstrated. This study highlights the importance of interface engineering in achieving high-performance CQD optoelectronic devices.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"43 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642672","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

Recent Advances in Light Outcoupling from Quantum-Dot Light-Emitting Diodes 量子点发光二极管光外耦合的最新进展

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-11-15 DOI: 10.1021/acsphotonics.4c01617

Taesoo Lee, Minjun Kim, Beomsoo Chun, Ganghyun Park, Soojeong Yim, Sunkyu Yu, Jeonghun Kwak

{"title":"Recent Advances in Light Outcoupling from Quantum-Dot Light-Emitting Diodes","authors":"Taesoo Lee, Minjun Kim, Beomsoo Chun, Ganghyun Park, Soojeong Yim, Sunkyu Yu, Jeonghun Kwak","doi":"10.1021/acsphotonics.4c01617","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01617","url":null,"abstract":"Colloidal nanocrystal quantum-dot (QD)-based light-emitting diodes (QLEDs) represent a highly promising technology for next-generation displays, utilizing the distinctive optical characteristics of QDs to generate vivid and precise colors. For decades, extensive research efforts have been dedicated to the synthesis of QDs and the engineering of QLEDs, with the ultimate goal of making them practically applicable. Notably, the majority of research has concentrated on performance enhancements that are predominantly attributed to the intrinsic characteristics of the material, rather than its optical factors. However, it has become increasingly evident recently that, as with other electroluminescent devices, research to enhance the optical outcoupling of QLEDs is of profound importance for achieving high efficiency and brightness. This Perspective discusses recent cornerstones and major challenges in outcoupling technologies for QLEDs, particularly those based on microcavity structures. It also offers valuable insights into the future prospects of this emerging research area, including the modulation of angular emission profiles and an in-depth investigation of advanced exciton dynamics.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"70 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642674","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

Parallelized Ultrasound-Guiding for Enhanced Light Delivery within Scattering Media 在散射介质中增强光传输的并行化超声引导

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-11-15 DOI: 10.1021/acsphotonics.4c01398

Blanca Mestre-Torà, Martí Duocastella

{"title":"Parallelized Ultrasound-Guiding for Enhanced Light Delivery within Scattering Media","authors":"Blanca Mestre-Torà, Martí Duocastella","doi":"10.1021/acsphotonics.4c01398","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01398","url":null,"abstract":"The delivery of light over an extended area within a sample forms the basis of biomedical applications that are as relevant as photoacoustic tomography, fluorescence imaging, and phototherapy techniques. However, light scattering limits the ability of these methods to reach deep regions within biological tissues. As a result, their operational range remains confined to superficial areas of samples, posing a significant barrier to effective optical treatment and diagnosis. Here, we propose an approach to address this issue and enhance light delivery across an extended region inside scattering samples. Our strategy involves using ultrasound to directly modulate the optical properties of the sample, generating refractive index gradients that act as embedded optical waveguides. By employing two perpendicularly oriented piezoelectric plates, several parallel waveguides can be simultaneously formed within the sample, allowing light to be guided over a wide area (3 × 3 mm2 in current experiments). Supported by Monte Carlo simulations, we demonstrate that ultrasound-light-guiding can enhance the intensity of light delivered inside scattering samples with an optical thickness of 2.5 and 12.5 by up to a factor of 700 and 42%, respectively. As a proof-of-concept, we demonstrated the ability of our approach to irradiate nanoparticles located within a scattering sample at light intensities that are not possible without ultrasound.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"21 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642673","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

Ultrafast Permittivity Engineering Enables Broadband Enhancement and Spatial Emission Control of Harmonic Generation in ZnO 超快脆性工程可实现 ZnO 中谐波产生的宽带增强和空间发射控制

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-11-15 DOI: 10.1021/acsphotonics.4c01737

Zhonghui Nie, Kevin Murzyn, Leo Guery, Thomas J. van den Hooven, Peter M. Kraus

{"title":"Ultrafast Permittivity Engineering Enables Broadband Enhancement and Spatial Emission Control of Harmonic Generation in ZnO","authors":"Zhonghui Nie, Kevin Murzyn, Leo Guery, Thomas J. van den Hooven, Peter M. Kraus","doi":"10.1021/acsphotonics.4c01737","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01737","url":null,"abstract":"Moderate efficiencies of nonlinear optical processes can be one of the challenges limiting even more widespread applications. Here we demonstrate a broadband and giant enhancement of nonlinear processes in ZnO through ultrafast permittivity engineering. A remarkable enhancement of the second and third harmonic generation of up to 2 orders of magnitude can be observed over a broadband range of driving wavelengths. Moreover, this nonlinearity enhancement is reversible with a recovery time of ∼120 fs. Additional experiments and simulations confirm that the observed enhancement originates from a permittivity change induced by the photocarrier population. Our results provide the opportunity to actively customize materials with a larger nonlinearity for nanophotonics on ultrafast time scales over broadband wavelength ranges. Utilizing this finding, we also demonstrate a relevant application, where a transient wave-guiding effect is induced by a donut-shaped photocarrier-excitation pulse, which both reduces the width of the spatial profile of harmonic emission below the diffraction limit and simultaneously increases its central emission strength.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"165 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642675","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

Influence of Strong Molecular Vibrations on Decoherence of Molecular Polaritons 强分子振动对分子极化子退相干的影响

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-11-15 DOI: 10.1021/acsphotonics.4c01446

Dominic M. Rouse, Erik M. Gauger, Brendon W. Lovett

引用次数: 0

Preparation of Co3O4/BiOCl composite material for photocatalytic degradation of trinitrotoluene wastewater 制备用于光催化降解三硝基甲苯废水的 Co3O4/BiOCl 复合材料

IF 23.2 1区物理与天体物理

ACS Photonics Pub Date : 2024-11-13 DOI: 10.1007/s42114-024-01056-5

Xiyang Zhou, Jiayi Liu, Jiaji Sun

{"title":"Preparation of Co3O4/BiOCl composite material for photocatalytic degradation of trinitrotoluene wastewater","authors":"Xiyang Zhou, Jiayi Liu, Jiaji Sun","doi":"10.1007/s42114-024-01056-5","DOIUrl":"10.1007/s42114-024-01056-5","url":null,"abstract":"<div>The aim of this paper is to improve the photocatalytic ability of pure BiOCl by a composite approach to solve the problem of degradation of trinitrotoluene (TNT) wastewater, which is difficult to degrade. Co3O4/BiOCl composite photocatalysts were successfully and efficiently synthesized using a combination of hydrothermal and calcination methods. The Co3O4/BiOCl composites were characterized, tested, and investigated by various complex techniques. Then, the high photocatalytic performance of the material was determined by its efficiency in degrading simulated TNT wastewater under visible light. From the above data, the possible degradation mechanism of the material in the photocatalytic system was deduced. The experimental results showed that the composite of Co3O4 significantly enhanced the photocatalytic performance of BiOCl and improved the efficiency of the composites in degrading TNT wastewater under visible light. In particular, the 0.05CoBi composite exhibited optimal degradation performance, reaching a 92% degradation efficiency of the TNT wastewater within 3 h. The composite was also found to be highly efficient in the degradation of TNT wastewater. After three consecutive photocatalytic degradation cycles, the 0.05CoBi composite maintained 80% degradation efficiency. In addition, radical trapping experiments showed that O2− plays a major role, followed by h+, in the degradation of TNT wastewater by 0.05CoBi. From our experiments, we propose a photocatalytic mechanism for this material.</div>","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600738","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

Bicarbazolyl-based covalent organic frameworks for highly efficient capture of iodine and methyl iodide 基于双咔唑的共价有机框架用于高效捕获碘和碘化甲烷

IF 23.2 1区物理与天体物理

ACS Photonics Pub Date : 2024-11-12 DOI: 10.1007/s42114-024-01063-6

Jiaxin Yang, Qianqian Yan, Hui Hu, Ming Wang, Shenglin Wang, Jianyi Wang, Songtao Xiao, Xiaofang Su, Ping Zhang, Yanan Gao

{"title":"Bicarbazolyl-based covalent organic frameworks for highly efficient capture of iodine and methyl iodide","authors":"Jiaxin Yang, Qianqian Yan, Hui Hu, Ming Wang, Shenglin Wang, Jianyi Wang, Songtao Xiao, Xiaofang Su, Ping Zhang, Yanan Gao","doi":"10.1007/s42114-024-01063-6","DOIUrl":"10.1007/s42114-024-01063-6","url":null,"abstract":"<div>Development of porous materials with excellent capture performance of radioactive iodides (mainly molecular I2 and organic CH3I) remains an ongoing challenge in nuclear industry. Currently, numerous efforts have been devoted to exploring novel adsorbents with good textural properties like high specific surface and large pore volume. However, some nonporous materials exhibited outstanding iodine adsorption capability. Therefore, it is not yet clear what factors determine the iodine uptake capacity. Herein, a novel paradigm of iodine capture that overturns previous cognition is proposed by exploring some 2D electron-donating nitrogen-containing covalent organic frameworks (COFs). As validated by different pores of 2D COFs shaping from rhombic to hexagonal and ranging from micropores to mesopores, their adsorption capabilities of either molecular I2 or CH3I are more likely to depend on the number of adsorption binding sites, rather than their textural properties. This novel paradigm of iodine capture is of great importance to design of porous materials for disposing of exhaust gases from nuclear power plants.<h3>Graphical Abstract</h3>For two-dimensional covalent organic frameworks that have same topological structure and electron-donating nitrogen-containing fragments with similar adsorption affinity to iodine molecules, their adsorption capabilities, for either molecular I2 or organic CH3I, are more likely to depend on the number of adsorption binding sites, rather than their textural properties like specific surface areas and pore volumes.\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"7 6","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600625","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