Article
Chemistry, Multidisciplinary
Salvatore Macis, Maria Chiara Paolozzi, Annalisa D'Arco, Federica Piccirilli, Veronica Stopponi, Marco Rossi, Fabio Moia, Andrea Toma, Stefano Lupi
Summary: This paper investigates the extraordinary optical transmittance effect in silicon nitride membranes patterned with micrometric holes, confirming the origin of the effect as phonon-polariton excitation. The study provides a novel light-matter interaction functionality for membrane technologies.
Article
Nanoscience & Nanotechnology
Carlota Ruiz de Galarreta, Noemi Casquero, Euan Humphreys, Jacopo Bertolotti, Javier Solis, C. David Wright, Jan Siegel
Summary: This study presents a novel single-step process for the rapid fabrication of high-performance mid- and long-wave infrared EOT metasurfaces using ultrafast direct laser writing. By carefully controlling three key experimental parameters, the optical characteristics of the extraordinary transmission effect can be precisely controlled. The fabricated devices exhibit high performance, flexibility, and reliability, demonstrating the potential for mass production of metasurfaces with on-demand optical properties.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Ruyi Zhang, Xinyan Li, Fanqi Meng, Jiachang Bi, Shunda Zhang, Shaoqin Peng, Jie Sun, Xinming Wang, Liang Wu, Junxi Duan, Hongtao Cao, Qinghua Zhang, Lin Gu, Liang-Feng Huang, Yanwei Cao
Summary: This work reports the high-quality epitaxy of 2-in. titanium nitride (TiN) films on flexible fluorophlogopite-mica (F-mica) substrates via reactive magnetron sputtering, revealing superior plasmonic and superconducting performance of the TiN/F-mica films. The study demonstrates that strain can manipulate the superconductivity of TiN films, offering a promising route for high-performance plasmonics and superconducting electronics.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Multidisciplinary Sciences
Igor A. Golovchanskiy, Nikolay N. Abramov, Vasily S. Stolyarov, Martin Weides, Valery V. Ryazanov, Alexander A. Golubov, Alexey Ustinov, Mikhail Yu Kupriyanov
Summary: Combining superconducting, insulating, and ferromagnetic layers can realize on-chip hybrid magnonic systems with unprecedentedly strong coupling parameters, breaking the restriction of weak coupling strength between elemental particles and offering new opportunities in microwave superconducting spintronics for quantum technologies.
Article
Chemistry, Multidisciplinary
Franz-Philipp Schmidt, Arthur Losquin, Michal Horak, Ulrich Hohenester, Michael Stoger-Pollach, Joachim R. Krenn
Summary: The study utilizes cathodoluminescence (CL) spectroscopy in a transmission electron microscope to investigate the radial breathing mode of plasmonic silver nanodisks. It reveals a spectral shift in the CL spectra acquired from both sides induced by the electron beam, confirmed through numerical simulations. The interference of CL emission patterns of an electron-beam-induced dipole and the breathing mode is identified as a physical effect that can limit fidelity in CL measurements.
Article
Chemistry, Multidisciplinary
Daehan Yoo, Avijit Barik, Fernando de Leon-Perez, Daniel A. Mohr, Matthew Pelton, Luis Martin-Moreno, Sang-Hyun Oh
Summary: The integration of plasmonics and electronics on a chip scale enables a wide range of applications in biosensing, signal processing, and optoelectronics. A novel split-trench resonator platform combining resonant plasmonic biosensors and RF nanogap tweezers has been demonstrated, allowing for active sample concentration and label-free detection of analytes. This manufacturing method shows promise for practical applications in biosensing, spectroscopy, and optoelectronics.
Article
Chemistry, Multidisciplinary
Theis P. P. Rasmussen, A. Rodriguez Echarri, F. Javier Garcia de Abajo, Joel D. D. Cox
Summary: The subwavelength plasmonic near-field enhancement is hindered by large ohmic losses in good plasmonic materials, while conventional phase-matching of fields in bulk nonlinear crystals is not suitable for realizing nonlinear optical phenomena on the nanoscale. In contrast, highly-doped graphene supports long-lived, highly-confined, and actively-tunable plasmons, making it an excellent platform for both plasmonics and nonlinear optics. By interfacing multiple graphene nanostructures in close proximity, we can trigger nonlocal effects associated with large gradients in the electromagnetic near field to enhance nonlinear response.
Article
Nanoscience & Nanotechnology
Alfredo Franco, Veronica Vidal, Marcos Gomez, Olga Gutierrez, Maria Martino, Francisco Gonzalez, Fernando Moreno, Jose L. Fernandez-Luna
Summary: The study introduces a system using a gold nanohole array biosensor and microscope optical design to discriminate between live cancer cells and normal cells. Differences in spectral behavior between tumor and non-tumor cells are influenced by the actin cortex within the short penetration depth of the surface plasmon electromagnetic field. The system shows high discrimination capacity between normal and colorectal cancer cells, with sensitivity and specificity values ranging between 80-100% and 87-100%, respectively.
Article
Chemistry, Multidisciplinary
Guangqing Du, Fangrui Yu, Yu Lu, Lin Kai, Caiyi Chen, Qing Yang, Xun Hou, Feng Chen
Summary: We theoretically investigate the spatial-temporal dynamics of extraordinary optical transmission (EOT) in a two-slit plasmonic antenna irradiated by femtosecond laser dual-beam. The dynamic interference of femtosecond laser dual-beam with transiently excited surface plasmon polariton waves is proposed to characterize the specific spatial-temporal evolutions of EOT. Our study reveals that the dynamic EOT can be flexibly switched and its symmetry can be tunable by manipulating the phase correlation of the crossed femtosecond laser dual-beam. Furthermore, we obtain the unobserved traits of symmetry-broken transient spectra of EOT from the respective up- and down-slit of the antenna.
Article
Chemistry, Multidisciplinary
Jinmei Song, Yanpeng Shi, Meiping Li, Xiaoyu Liu, Xiaodong Wang, Fuhua Yang, Huayu Feng
Summary: By utilizing Mie resonance coupling effects, low-loss silicon particles can be used as receiving or transmitting antennas to localize the electromagnetic field in the terahertz region. This leads to enhanced extraordinary optical transmission (EEOT) when two silicon particles are symmetrically placed on both sides of subwavelength hole arrays. The proposed structure exhibits enhanced factors of 154 and 629 compared to the hole-only structure, and the Mie resonance coupling and induced THz EEOT can be adjusted over a wide frequency range.
NANOSCALE ADVANCES
(2022)
Article
Nanoscience & Nanotechnology
Young-Ho Jin, Juntaek Oh, Wonshik Choi, Myung-Ki Kim
Summary: The paper proposes a novel method to resolve individual eigenmodes of subwavelength nanostructures. By constructing a transmission matrix and utilizing singular value decomposition, the near-field profiles and energy spectra of individual eigenmodes can be effectively resolved. This method has significant implications for designing and utilizing optical devices.
Article
Optics
Ke Li, Jiawei Wang, Wengfeng Cai, Huilin He, Jianxun Liu, Zhen Yin, Dan Luo, Quanquan Mu, Davy Gerard, Yan Jun Liu
Summary: In this study, switchable structural colors covering the entire visible range were achieved by integrating aluminum nanoaperture arrays with nematic liquid crystals. The switchable colors can be changed by altering the polarization of the incident light or applying an external voltage, with a fast response time and dual switching modes.
Article
Chemistry, Multidisciplinary
Guangyu Qiu, Martin Spillmann, Jiukai Tang, Yi-Bo Zhao, Yile Tao, Xiaole Zhang, Heike Geschwindner, Lanja Saleh, Walter Zingg, Jing Wang
Summary: This article presents a method using the CAPS system for on-site quantitative risk analysis of SARS-CoV-2 virus-laden aerosols. The system provides rapid biosensing results in COVID-19-related environments and enables direct measurement of virus exposures with high spatiotemporal resolution.
Article
Computer Science, Information Systems
Miguel Camacho, Armando Fernandez-Prieto, Rafael R. Boix, Francisco Medina
Summary: This manuscript investigates the effects of manufacturing limitations on the transmission properties of extraordinary transmission structures, and explores the influence of disorder on their transmission spectrum.
Article
Chemistry, Multidisciplinary
Taeko Matsukata, Shintaro Ogura, Javier Garcia de Abajo, Takumi Sannomiya
Summary: Free-electron-based spectroscopies can reveal nanoscale optical properties of semiconductor materials and nanophotonic devices. A cathodoluminescence method is demonstrated that can access both excitation and emission spaces at the nanoscale, providing valuable information on previously inaccessible nanoscale optical properties.
Article
Materials Science, Multidisciplinary
Jinxiang Li, Dimitrios Papas, Tongjun Liu, Jun-Yu Ou, Kevin F. MacDonald, Eric Plum, Nikolay Zheludev
Summary: The study found that high-frequency time-domain fluctuations in the optical transmission and reflection spectra of nanomechanical photonic metamaterials are directly related to the thermal motion of their components and can provide information about mechanical modes. The measurements reveal complex mechanical responses of the metamaterials at room temperature, which are essential for material optimization.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Optics
Guoqiang Lan, Jun-Yu Ou, Dimitrios Papas, Nikolay I. Zheludev, Eric Plum
Summary: We present a non-contact optical magnetic field sensor that utilizes the magnetic Lorentz force to actuate a metamaterial microcavity, enabling transduction of the magnetic field into a change in reflectivity. This proof-of-concept microscale metamaterial magnetometer offers remote reading capability, with 60 μm spatial resolution, 10 μs temporal resolution, and sub-microtesla magnetic field resolution.
Article
Chemistry, Multidisciplinary
Oleksandr Buchnev, James A. Grant-Jacob, Robert W. Eason, Nikolay I. Zheludev, Ben Mills, Kevin F. MacDonald
Summary: Researchers have developed a deep learning method based on prior experience to predict the postfabrication appearance of structures manufactured by focused ion beam (FIB) milling, which can expedite the optimization process and improve reproducibility in FIB processing.
Article
Chemistry, Multidisciplinary
Jinxiang Li, Kevin F. MacDonald, Nikolay Zheludev
Summary: Nanomechanical photonic metamaterials exhibit thermal motion-induced fluctuations in optical properties, which can be controlled by light to tune metamaterial transmission. This tuning mechanism provides active control for photonic devices and serves as the basis for various types of sensors.
Article
Chemistry, Multidisciplinary
Disheng Chen, Johannes E. Froch, Shihao Ru, Hongbing Cai, Naizhou Wang, Giorgio Adamo, John Scott, Fuli Li, Nikolay Zheludev, Igor Aharonovich, Weibo Gao
Summary: This study successfully observed resonance fluorescence from GeV color centers in diamond by using cross-polarization to suppress laser scattering and achieved two-photon interference based on single GeV color center. The single-shot readout of spin states was also demonstrated, laying the foundation for building a quantum network with GeV color centers in diamond.
Article
Optics
Apostolos Zdagkas, Cormac McDonnell, Junhong Deng, Yijie Shen, Guixin Li, Tal Ellenbogen, Nikitas Papasimakis, Nikolay I. Zheludev
Summary: Researchers have successfully realized toroidal light pulses in the optical and terahertz regions using tailored nanostructured meta-surfaces. This achievement opens up new possibilities for experimental studies on the applications of toroidal light pulses in energy and information transfer.
Article
Physics, Applied
Anton N. Vetlugin, Cesare Soci, Nikolay Zheludev
Summary: This article introduces an alternative modeling approach for photonic devices by using a quantum computer to simulate their functionality. Taking the quantum interference of light as an example, the superior performance of this method in reproducing real optical experiments is demonstrated. This research is of great importance for modeling complex multi-photon optical phenomena and devices.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Multidisciplinary
Anton N. Vetlugin, Ruixiang Guo, Cesare Soci, Nikolay Zheludev
Summary: Two-photon interference, known as the Hong-Ou-Mandel effect, is of great significance in quantum technology. When overlapping in time, the coincidence rate of detected photons drops to zero. Interference on a lossy beamsplitter reverses quantum interference, where bosonic states anti-coalesce while fermionic states exhibit coalescent-like behavior. Generating light states with different statistics and manipulating their interference offers important opportunities for quantum information and metrology.
NEW JOURNAL OF PHYSICS
(2022)
Article
Multidisciplinary Sciences
Tongjun Liu, Jun-Yu Ou, Nikitas Papasimakis, Kevin F. MacDonald, Vitalyi E. Gusev, Nikolay Zheludev
Summary: Flexural oscillations play a significant role in the properties and applications of two-dimensional and nanostructured materials. This study reports the observation of short-time ballistic motion in the flexural mode of a nanomembrane cantilever, and provides insights into fast thermometry and mass sensing.
Article
Multidisciplinary Sciences
Ilya Kuprov, David Wilkowski, Nikolay Zheludev
Summary: It is commonly believed that electromagnetic spectra of atoms and molecules can be fully described by interactions involving electric and magnetic multipoles. However, recent studies have shown that interactions between light and matter also involve toroidal multipoles. This study explores the feasibility of a previously unexplored type of spectroscopy involving toroidal dipolar interactions, which have been largely neglected. The results show that considering the spin-dependent term in relativistic quantum mechanics allows for the distinction of toroidal dipole transitions from electric multipole and magnetic dipole transitions.
Editorial Material
Nanoscience & Nanotechnology
Nikolay I. Zheludev, David Wilkowski
Summary: Toroidal electrodynamics is influencing research in toroidal, anapole metamaterials, optical properties of nanoparticles, plasmonics, sensors, and lasers. A recent publication on toroidal optical transitions in hydrogen-like atoms promises to launch a new chapter in spectroscopy.
Article
Chemistry, Multidisciplinary
Dimitrios Papas, Jun-Yu Ou, Eric Plum, Nikolay I. Zheludev
Summary: Metastable optically controlled devices (optical flip-flops) are important in various applications. However, the weak optical nonlinearities have hindered the development of low-power bistable devices. This work introduces a new type of volatile optical bistability in a hybrid nano-optomechanical device, which can be switched between bistable optical states with microwatts of optical power and its volatile memory can be erased by removing the acoustic signal.
Article
Optics
Jin Yao, Jun-Yu Ou, Vassili Savinov, Mu Ku Chen, Hsin Yu Kuo, Nikolay Zheludev, Din Ping Tsai
Summary: This work experimentally demonstrates the high sensitivity of a plasmonic anapole metamaterial sensor to the refractive index of the environment in the optical part of the spectrum. The results show promising potential for applications in biosensing and spectroscopy.
Proceedings Paper
Materials Science, Multidisciplinary
Yijie Shen, Nikitas Papasimakis, Nikolay Zheludev
Summary: Topological complex electromagnetic waves enable nontrivial light-matter interactions with additional degrees of freedom for information transfer. By introducing bandlimited effect, space-time non-separable band-limited light fields can exhibit superoscillations simultaneously in the spatial and temporal domains.
METAMATERIALS XIII
(2022)
Article
Optics
Anton N. Vetlugin, Ruixiang Guo, Cesare Soci, Nikolay I. Zheludev
Summary: We propose an approach for the deterministic generation of entangled states in multinodal quantum networks of arbitrary size by coupling a single photon standing wave with the nodes of the network. This method allows for efficient generation of entanglement regardless of the size and nature of the network.
