ACS Photonics最新文献

Rotational Photonic Spin Hall Effect Sensor for Liquid Chemicals Classification via EfficientNet-V2

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-23 DOI: 10.1021/acsphotonics.4c01913

Kang Zeng, Linzhou Zeng, Peng Yang, Yougang Ke, Zhiwei Huang

引用次数: 0

Unveiling the Effect of Synthetic Atmospheric Humidity on the Performance of FAPbBr3 Nanocrystals and Their PeLEDs

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-23 DOI: 10.1021/acsphotonics.4c01811

Qinglin Zeng, Jibin Zhang, Xinzhen Ji, Meng Wang, Shuailing Lin, Meng Su, Qianli Liu, Linyuan Lian, Mochen Jia, Xu Chen, Zhuangzhuang Ma, Ying Liu, Yanbing Han, Yongtao Tian, Xin-Jian Li, Zhifeng Shi

{"title":"Unveiling the Effect of Synthetic Atmospheric Humidity on the Performance of FAPbBr3 Nanocrystals and Their PeLEDs","authors":"Qinglin Zeng, Jibin Zhang, Xinzhen Ji, Meng Wang, Shuailing Lin, Meng Su, Qianli Liu, Linyuan Lian, Mochen Jia, Xu Chen, Zhuangzhuang Ma, Ying Liu, Yanbing Han, Yongtao Tian, Xin-Jian Li, Zhifeng Shi","doi":"10.1021/acsphotonics.4c01811","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01811","url":null,"abstract":"The polar solvent of water can disrupt the structure of lead halide perovskite nanocrystals (PeNCs), and its presence is inevitable during the synthesis process. Therefore, it is crucial to understand the impact of synthetic atmospheric humidity on the performance of PeNCs and their electroluminescence. In this study, we first synthesized formamidine lead bromide (FAPbBr3) PeNCs at different relative air humidities and explored their optoelectronic properties and electroluminescence. We found that under optimal humidity conditions (40% R.H.), water molecules can reduce the nucleation growth barrier of PeNCs through ligand replacement. This process results in nanocrystals with good crystallinity and fewer defects, thereby reducing defect states and nonradiative recombination. The perovskite light-emitting diodes (PeLEDs) based on these FAPbBr3 PeNCs exhibit a maximum luminance of 39,000 cd m–2 and a peak external quantum efficiency of 16.2%, surpassing most reported values in the literature without the use of any additional additives. This study elucidates the role of atmospheric humidity in the growth of PeNCs and introduces the concept of humidity-assisted synthesis, which is crucial for scaling up production in the industry.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"41 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874104","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 Multiplexable Meta-Devices for Imaging and Processing

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-20 DOI: 10.1021/acsphotonics.4c01560

Zi-Xin Zhou, Xin-Yi Zhang, Hao-Ran Qin, Zi-Xuan Gao, Ye-Ang Zhang, Chunyu Huang, Fenzhen Fang, Yan-Qing Lu, Jun-Long Kou

引用次数: 0

Bose–Einstein Condensation of Polaritons at Room Temperature in a GaAs/AlGaAs Structure

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-20 DOI: 10.1021/acsphotonics.4c01992

Hassan Alnatah, Shuang Liang, Qi Yao, Qiaochu Wan, Jonathan Beaumariage, Ken West, Kirk Baldwin, Loren N. Pfeiffer, David W. Snoke

引用次数: 0

High Purcell Enhancement in Quantum-Dot Hybrid Circular Bragg Grating Cavities for GHz Clock Rate Generation of Indistinguishable Photons

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-20 DOI: 10.1021/acsphotonics.4c01873

Lucas Rickert, Daniel A. Vajner, Martin von Helversen, Johannes Schall, Sven Rodt, Stephan Reitzenstein, Hanqing Liu, Shulun Li, Haiqiao Ni, Zhichuan Niu, Tobias Heindel

引用次数: 0

Ultrafast Optical Modulation by Virtual Interband Transitions

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-19 DOI: 10.1021/acsphotonics.4c01792

Evgenii E. Narimanov

{"title":"Ultrafast Optical Modulation by Virtual Interband Transitions","authors":"Evgenii E. Narimanov","doi":"10.1021/acsphotonics.4c01792","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01792","url":null,"abstract":"A new frontier in optics research has been opened by the recent developments in nonperturbative optical modulation in both time and space that creates temporal boundaries generating “time reflection” and “time refraction” of light in the medium. The resulting formation of a photonic time crystal within the modulated optical material leads to a broad range of new phenomena with a potential for practical applications, from nonresonant light amplification and tunable lasing to the new regime of quantum light-matter interactions. However, the creation of the temporal boundary for light relies on optical modulation of the refractive index, which is both strong and fast even on the time scale of a single optical cycle. Both of these problems are extremely challenging, even when addressed independently, leading to fundamentally conflicting requirements for all existing methods of optical modulation. However, as we show in the present work, an alternative approach based on virtual interband transition excitation solves this seemingly insurmountable problem. Being fundamentally dissipation-free, optical modulation by virtual excitation does not face the problem of heat accumulation and dissipation in the material, while the inherently transient nature of the excited virtual population that modifies the material response only on the time scale of a single optical cycle ensures that the resulting change in the refractive index is inherently ultrafast. Here, we develop the theoretical description of the proposed modulation approach and demonstrate that it can be readily implemented using already existing optical materials and technology.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"9 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857645","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

Short-Wave Infrared Optoelectronics with Colloidal CdHgSe/ZnCdS Core/Shell Nanoplatelets

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-19 DOI: 10.1021/acsphotonics.4c01944

Hossein Roshan, Anatol Prudnikau, Jinfei Dai, Matilde Cirignano, Francesco De Boni, Mirko Prato, Fabian Paulus, Vladimir Lesnyak, Francesco Di Stasio

引用次数: 0

Chip-Scale Single-Beam Atomic Magnetometer Enabled by Spin-Selective Interference Meta-Optics

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-19 DOI: 10.1021/acsphotonics.4c01638

Jinsheng Hu, Zihua Liang, Peng Zhou, Lu Liu, Gen Hu, Mao Ye

{"title":"Chip-Scale Single-Beam Atomic Magnetometer Enabled by Spin-Selective Interference Meta-Optics","authors":"Jinsheng Hu, Zihua Liang, Peng Zhou, Lu Liu, Gen Hu, Mao Ye","doi":"10.1021/acsphotonics.4c01638","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01638","url":null,"abstract":"Emerging atomic magnetometers (AMs) are among the most advanced sensors for detecting and characterizing magnetic fields. Recently, there has been growing interest in the miniaturization and integration of AMs due to the urgent demand for portability and compactness in various fields such as biomagnetism imaging. While conventional AMs require a bulky setup of optical devices for the pumping and optical readout of atomic spin, here, a novel chip-scale single-beam AM scheme is proposed by leveraging extreme transmissive circular polarization dichroism (TCPD) and geometric phase manipulation of spin-selective interference meta-optics. This is achieved through silicon-based metasurfaces that enable the realization of arbitrary-to-circular polarization conversion and wavefront modulation within a monolithic chip at Rb D1 transition wavelength (λ = 795 nm). Two spin-selective interference metasurfaces, i.e., meta-circular-polarizer (MCP) and meta-circular-polarizer-lens (MCPL), are fabricated and characterized, with a measured TCPD of 0.68 for the MCP as well as focusing efficiency and TCPD of around 70.67% and 0.69 for the MCPL, respectively. As a proof of concept, a 4 × 4 × 4 mm3 Rb vapor cell is combined with our metasurface to construct a miniaturized single-beam AM. The sensitivity of our compact metasurface-based system is about 15 fT/Hz1/2, with a dynamic range near zero-field of ± 2.2 nT. We envision that this work could facilitate the development of burgeoning chip-scale quantum sensors, which hold great potential for high-spatial-resolution biomagnetic imaging, on-chip nuclear magnetic resonance, and so forth.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"28 9 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857644","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 Nanogap-Dependent Plasmonic Coupling in Gold Nanoparticle Superlattices by Scanning Tunneling Microscopy Induced Light Emission 通过扫描隧道显微镜诱导光发射探测金纳米粒子超晶格中依赖于纳米间隙的等离子耦合

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-19 DOI: 10.1021/acsphotonics.4c01408

Yalan Ma, Bin Lu, Olivier J. F. Martin, Andreas Stemmer

{"title":"Probing Nanogap-Dependent Plasmonic Coupling in Gold Nanoparticle Superlattices by Scanning Tunneling Microscopy Induced Light Emission","authors":"Yalan Ma, Bin Lu, Olivier J. F. Martin, Andreas Stemmer","doi":"10.1021/acsphotonics.4c01408","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01408","url":null,"abstract":"Plasmonic nanogaps can support confined and enhanced electromagnetic fields. In this work, we use scanning tunneling microscopy-induced light emission (STM-LE) to study the localized surface plasmon resonance of gold nanoparticle superlattices, which consist of high-density nanogaps of tunable sizes (from 0.1 to 2.3 nm). By analyzing the far-field light emission, we discover that two distinct plasmon modes, i.e., the transverse dipolar plasmon mode (TDP) and bonding dipolar plasmon (BDP) mode, can be selectively excited depending on the location of the STM tip. As the interparticle gap distance decreases, the BDP mode excited at the plasmonic nanogaps shows a monotonous red-shift and broadening, indicating continuously enhanced interparticle plasmonic coupling. Moreover, we observe a stronger radiative strength of the BDP mode compared to the TDP mode excited at the nanoparticles, demonstrating that the plasmonic nanogaps act as electromagnetic hot spots. The intensity ratio of the BDP mode to the TDP mode is enhanced with decreased gap size down to the unprecedent 0.1 nm, revealing the extreme field confinement that can be achieved in plasmonic superlattices. Our results advance the understanding of near-field enhancement in subnanometer plasmonic gaps and shall benefit the design of plasmonic structures for applications in many fields, including surface enhance Raman spectroscopy, photocatalysis, and optoelectronics.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"53 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849296","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

Nanoscale Vectorial Electric and Magnetic Field Measurement 纳米级矢量电场和磁场测量

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-19 DOI: 10.1021/acsphotonics.4c01831

Jörg S. Eismann, Peter Banzer

引用次数: 0