Article
Optics
Jerome Le Perchec
Summary: This paper analyzes the resonant transmission of two near-field coupled, cascaded bandpass filters based on metallic stripe or patch gratings. The results show that the response of these structures surpasses the simple convolution of the responses of two isolated filters in terms of maximum efficiency and light rejection out of the resonance. The technological integration of such compact structures is particularly relevant for detection applications in the infrared and visible ranges.
Article
Nanoscience & Nanotechnology
Pratik Joshi, Shubhangi Shukla, Siddharth Gupta, Parand R. Riley, Jagdish Narayan, Roger Narayan
Summary: This study optimized the defect density of graphene by adjusting laser parameters, leading to improved detection limit for peroxide. Different treatment methods resulted in different graphene structures, with more holes leading to lower detection limits.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yali Xu, Binbin Fan, Zheng Liu, Cong Huang, Aiping Hu, Qunli Tang, Shiying Zhang, Weina Deng, Xiaohua Chen
Summary: A redox-active engineered holey reduced graphene oxide film anode was prepared using carboxylic acid functionalized polystyrene spheres as a template, which greatly enhanced the electrochemical performance for potassium-ion batteries. The optimized film exhibited superior areal capacity and improved charge/discharge performance in KIBs.
Article
Physics, Applied
Jaeuk Kim, Thomas M. Truskett
Summary: This study investigates the electrical and optical properties of crack-templated networks and compares them with metallic meshes with periodically ordered aperture arrays. A geometric modeling approach is introduced, and simulation is used to compute their wavelength- and incident angle-dependent optical transmittance and sheet resistivity.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Yanfeng Wang, Fei Yang, Zhengjun Zhang, Yiping Zhao
Summary: Transparent metallic films (TMFs) are the best candidates among transparent conductive films (TCFs) due to their ability to maintain high electrical conductivity and optical transparency simultaneously under mechanical deformation. Empirical relationships and a figure-of-merit expression have been proposed to predict the overall quality and performance of TMFs, particularly in silver nanohole array TMFs. The experimental data and theoretical predictions show that a beta value of 5 is better for characterizing the performance of nanohole array TMFs compared to beta value of 10 for TCFs.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Optics
Tobias Wenger, Richard E. Muller, Daniel W. Wilson, Alexander Soibel
Summary: A fabrication method for creating subwavelength nanohole arrays in silver using a thin layer of aluminum oxide has been developed. The filters, designed for the wavelength range of 2-7μm, exhibit peak transmission efficiencies around 70%.
Article
Optics
Nouran M. Ali, Tamer A. Ali
Summary: Modeling of nano-structured plasmonic surfaces in optical range has been extensively studied due to their various optical properties. This paper presents a simple nanocircuit model integrated in CAD tools for designing FSS devices based on plasmonic transmission through structured thin films. The model is applied to circular and square hole arrays on a silver thin film, demonstrating good agreement with numerical calculations and experimental measurements.
APPLIED PHYSICS B-LASERS AND OPTICS
(2023)
Article
Physics, Applied
Yinan Wang, Leland Nordin, Sukrith Dev, Monica Allen, Jeffery Allen, Daniel Wasserman
Summary: We demonstrate high-speed mid-wave infrared photoconductive detectors using lattice-mismatched, epitaxially grown InSb absorber material with nano-scale hole arrays. The hole patterns allow for post-growth control over the detector response time. The detectors offer potential applications in high-speed sensing/imaging, free-space communication, ranging, or dual-comb spectroscopy.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Shengjie Xu, Yue Qi, Yikai Lu, Shichao Sun, Yu Liu, Deli Jiang
Summary: In this study, mesh-like Fe-doped CoP holey nanosheets (Fe-CoP HNSs) were synthesized through a phosphorization treatment, showcasing superior catalytic activity towards hydrogen and oxygen evolution reactions. The Fe-CoP HNSs catalyst features abundant active sites and efficient mass transfer kinetics, making it a promising candidate for water splitting electrocatalysis. The assembled Fe-CoP HNSs electrolyzer requires a low cell voltage to deliver high current densities, outperforming many reported transition metal phosphides electrocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Chong Guo, Zhi-Hong Luo, Ming-Xia Zhou, Xinru Wu, Yan Shi, Qinyou An, Jiao-Jing Shao, Guangmin Zhou
Summary: Lithium metal anode is the optimal choice for high-energy-density lithium batteries, but the growth of dendritic lithium due to an unstable anode/electrolyte interface limits its practical application. Separator engineering provides a feasible and effective solution by guiding ion transport and regulating the electrodeposition of lithium. In this study, a low-cost and eco-friendly inorganic separator based on clay-originated silica nanosheets with high porosity and superior properties was developed. The use of this separator allows for stable lithium plating/stripping and results in high capacity, excellent rate performance, and outstanding cycling stability in full cells.
Article
Engineering, Multidisciplinary
Zhuo Cai, Yifei Ma, Micun Yun, Mei Wang, Zhaomin Tong, Jonghwan Suhr, Liantuan Xiao, Suotang Jia, Xuyuan Chen
Summary: In this study, an MXene/holey graphene composite film was fabricated with improved mechanical properties and prevention of MXene self-stacking using hydrogen bonds between HG and MXene. The composite film showed outstanding EMI shielding, low-voltage-driven Joule heating, and high-efficiency photothermal conversion performances at a low thickness, making it promising for wearable and microelectronic device applications.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Physics, Applied
P. Stoliar, O. Schneegans, M. J. Rozenberg
Summary: This study investigates the minimal recurrent spiking neural network of a single neuron with an autaptic synapse, implemented in solid state using an ultracompact neuron model based on the memristive properties of a thyristor. By controlling feedback, they explore the systematic behavior and dynamic memory of the network, replicating experimentally observed behavior of biological autapse. This work lays the foundation for solid-state neuroscience research using the ultracompact neuron as a platform.
PHYSICAL REVIEW APPLIED
(2021)
Article
Materials Science, Multidisciplinary
Tianhui Zhu, Yunhui Wu, Shuai Li, Farjana F. Tonni, Masahiro Nomura, Mona Zebarjadi
Summary: Silicon thin films are promising for chip-integrated Peltier micro-coolers and thermoelectric power generators due to their compatibility and cost effectiveness. This study focuses on reducing thermal conductivity by creating patterned nano-holes in single crystalline silicon thin films and surface doping them with organic molecules F4TCNQ. The results show significant improvements in electrical conductivity and power factor.
MATERIALS TODAY PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Minqiu Lan, Chuyi Xie, Bin Li, Shengxiong Yang, Fei Xiao, Shuai Wang, Junwu Xiao
Summary: This research presents a new method to improve the long-term durability of transition-metal sulfide catalysts and successfully prepares a two-dimensional cobalt sulfide holey sheet superstructure. By adding an iron-nitrogen-carbon layer as a protective layer, the structural stability of cobalt sulfide is preserved, and it exhibits exceptional activity and durability during catalysis.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Environmental Sciences
Zheng Wang, Chenchen Meng, Wei Zhang, Shaoze Zhang, Bo Yang, Zhenghua Zhang
Summary: A 2D honeycomb-like holey membrane assembled by Co3O4 nanosheets has been found to be an excellent activator for peroxymonosulfate (PMS) and aids in rapid pollutant removal. This membrane achieves high degradation rates and maintains efficient degradation under continuous flow conditions. The findings of this study provide guidance for the design of other efficient heterogeneous catalytic systems and present a novel approach to overcoming the limitations of conventional catalysis.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Nanoscience & Nanotechnology
Nestor Bareza, Bruno Paulillo, Tetiana M. Slipchenko, Marta Autore, Irene Dolado, Song Liu, James H. Edgar, Saul Velez, Luis Martin-Moreno, Rainer Hillenbrand, Valerio Pruneri
Summary: Hexagonal boron nitride (hBN) hosts long-lived phonon polaritons, making it a promising material for mid-infrared sensing and spectroscopy. In this study, a mid-IR CO2 gas sensor based on phonon polariton modes in hBN nanoresonators functionalized with a CO2-adsorbing layer was demonstrated. The results showed that the PhP resonance shifted to lower frequency, weakened, and broadened with increasing CO2 concentrations.
Article
Chemistry, Multidisciplinary
Rocio Saez-Blazquez, Alvaro Cuartero-Gonzalez, Johannes Feist, Francisco J. Garcia-Vidal, Antonio Fernandez-Dominguez
Summary: We investigate the quantum-optical properties of the light emitted by a nanoparticle-on-mirror cavity filled with a single quantum emitter. We reveal that the rich plasmonic spectrum of the nanocavity offers unexplored mechanisms for nonclassical light generation that are more efficient than the resonant interaction between the emitter natural transition and the brightest optical mode. Finally, we illustrate the power of our approach by showing that the introduction of a second emitter in the platform can enhance photon correlations further.
Article
Physics, Multidisciplinary
Kaveh Khaliji, Luis Martin-Moreno, Phaedon Avouris, Sang-Hyun Oh, Tony Low
Summary: The ability to control light polarization state is crucial for various applications. This study proposes the use of a stack of anisotropic van der Waals materials to create optical elements with different characteristics. The twisted stack with electrostatic control can function as arbitrary-birefringent wave-plate or polarizer, enabling the access to a wide range of polarization transformers. An electrostatic-reconfigurable stack is also discussed, which can operate as four different polarizers for Stokes polarimetry.
PHYSICAL REVIEW LETTERS
(2022)
Review
Physics, Multidisciplinary
Francisco J. Garcia-Vidal, Antonio I. Fernandez-Dominguez, Luis Martin-Moreno, Hao Chi Zhang, Wenxuan Tang, Ruwen Peng, Tie Jun Cui
REVIEWS OF MODERN PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Jacopo Fregoni, Francisco J. Garcia-Vidal, Johannes Feist
Summary: Polaritonic chemistry exploits strong light-matter coupling between molecules and confined electromagnetic field modes to enable new chemical reactivities. Different scales of optical cavities and plasmonic subwavelength nanocavities determine the collective effects and strong coupling of light-matter interaction. A multiscale theoretical toolbox is necessary to study the rich phenomenology of polaritonic chemistry. Each component of the system needs to be treated in detail for reliable results.
Article
Nanoscience & Nanotechnology
Monica Sanchez-Barquilla, Antonio I. Fernandez-Dominguez, Johannes Feist, Francisco J. Garcia-Vidal
Summary: The article discusses the theoretical research on the strong coupling between organic molecules and light modes over the past decade, describing the difficulty and complexity in predicting polaritonic phenomena in this light-matter interaction, and highlighting the challenges in modeling such interactions.
Article
Optics
Thanh Xuan Hoang, Hong-Son Chu, Francisco J. Garcia-Vidal, Ching Eng Png
Summary: In this study, a design approach for optimizing semiconductor nanocavities is introduced, which starts from single photonic atoms and builds photonic molecules to achieve high-performance nanocavities. The approach is based on exact analytical solutions to the Maxwell equations for collective Mie resonances. Different concepts of cavity modes, including Mie mode, collective Mie mode, photonic-crystal (PC) band-edge mode, and Feshbach-type bound states in the continuum (BIC) mode, are distinguished. A unique structure of nanocavity supporting the Feshbach-type BIC mode is presented, which can enhance the emission rate of a dipolar emitter significantly. This high-performance nanocavity suppresses radiative loss channels strongly via destructive interference and efficiently channels the emission light into a bi-directional beam.
Article
Physics, Applied
In -Ho Lee, Luis Martin -Moreno, Phaedon Avouris, Tony Low, Sang-Hyun Oh
Summary: Vertical plasmonic coupling in double-layer graphene results in optical and acoustic hybridized plasmonic modes with different charge distributions. However, most experiments only excite the optical plasmon in double-layer graphene. In this study, we propose strategies to selectively and efficiently excite the acoustic plasmon using nanoemitters. We also present an optimal device structure to observe the acoustic plasmon in double-layer graphene.
PHYSICAL REVIEW APPLIED
(2023)
Article
Materials Science, Multidisciplinary
Fernando Loren, Gian L. Paravicini-Bagliani, Sudipta Saha, Jerome Gautier, Minghao Li, Cyriaque Genet, Luis Martin-Moreno
Summary: We study spin-orbit coupling in a plasmonic Berry metasurface made up of rotated nanoapertures, which exhibits a strong far-field polarization response. We introduce a scattering formalism that explains how spin-momentum locking emerges from the unit cell geometry, without the need for global rotation symmetries. By using Mueller polarimetry measurements, we confirm that spin-momentum locking is an approximate symmetry and identify the breakdown of this symmetry due to the elliptical projection of circularly polarized light on the planar surface. We also present a new set of spin-momentum locking rules for the excitation of surface waves.
Article
Materials Science, Multidisciplinary
Fernando Loren, Cyriaque Genet, Luis Martin-Moreno
Summary: We present a scattering formalism for analyzing the spin-momentum locking in structured holey plasmonic metasurfaces. The emergence of spin-momentum locking is found to originate from the unit-cell configuration. Additionally, we identify several breakdown terms that spoil the perfect spin-momentum locking polarization. We also demonstrate that this breakdown is present in systems with global symmetries of translation and rotation.
Article
Optics
Sergi Terradas-Brianso, Carlos A. Gonzalez-Gutierrez, Franco Nori, Luis Martin-Moreno, David Zueco
Summary: In this paper, the interaction of giant atoms with waveguides in the ultrastrong-coupling regime beyond the rotating-wave approximation is studied. The equilibrium properties of the system and the dynamics of initially excited giant atoms are analyzed, showing features of virtual photons and oscillating bound states beyond the rotating-wave approximation.
Article
Nanoscience & Nanotechnology
Alberto Miguel-Torcal, Jaime Abad-Arredondo, Francisco J. Garcia-Vidal, Antonio Fernandez-Dominguez
Summary: In this study, we investigate the generation of entanglement between two quantum emitters by inverse-design engineering of their photonic environment. We use a topology-optimization approach to create dielectric cloaks at different inter-emitter distances and incoherent pumping strengths. The structures obtained maximize the dissipative coupling between the emitters and yield steady-state concurrence values that are significantly higher than those achievable in free space. We demonstrate that the entanglement enabled by our devices approaches the limit of maximum-entangled-mixed-states.
Article
Nanoscience & Nanotechnology
Monica Sanchez-Barquilla, Francisco J. Garcia-Vidal, Antonio Fernandez-Dominguez, Johannes Feist
Summary: This article presents a method that allows a quantized description of the full electromagnetic field through a small number of discrete modes, addressing the challenging task of theoretical description for complex nanostructures. The low computational demand of this method makes it suitable for studying dynamics for a wide range of parameters.
Article
Materials Science, Multidisciplinary
Y. Muniz, P. P. Abrantes, L. Martin-Moreno, F. A. Pinheiro, C. Farina, W. J. M. Kort-Kamp
Summary: This study investigates the spontaneous decay of a quantum emitter near single-walled carbon nanotubes and graphene-coated wires. The results show enhanced generation of entangled states in single-walled carbon nanotubes and predict significantly higher emission rates compared to free space. The findings provide a basis for a new material platform for on-chip quantum information technologies.
Article
Chemistry, Multidisciplinary
Claudia Climent, David Casanova, Johannes Feist, Francisco J. Garcia-Vidal
Summary: In this work, it is shown that singlet fission dynamics can be accelerated under strong light-matter coupling. State mixing speeds up the dynamics when the lower polariton is close in energy to the multiexcitonic state. This effect is more pronounced in non-conventional singlet fission materials.
CELL REPORTS PHYSICAL SCIENCE
(2022)
