Article
Chemistry, Multidisciplinary
Lin Geng, Qiao-Hong Li, San-Tai Wang, Ya-Jie Liu, Wei-Hui Fang, Jian Zhang
Summary: This study presents the first example of aluminum nanoring assembly by fatty acids, showing that modification of auxiliary alcohol sites can lead to different ring configurations. Interestingly, the structural transformation is found to be a thermodynamically spontaneous process through density-functional theory (DFT) calculations.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Wei-Qiang Liao, Yu-Ling Zeng, Yuan-Yuan Tang, Yu-Qiu Xu, Xiao-Yun Huang, Hang Yu, Hui-Peng Lv, Xiao-Gang Chen, Ren-Gen Xiong
Summary: This article proposes a new mechanism of ferroelectrics, i.e. the dual breaking of molecular orbitals and spatial symmetry in a photochromic organic crystal with light-induced polarization switching. By controlling the ultraviolet/visible light irradiation, a reversible switch between shoulder-to-shoulder form and head-to-head form is achieved. This mechanism can be used to manipulate ferroelectric polarization and has significant application prospects.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Muhammad Ashar Naveed, Muhammad Afnan Ansari, Inki Kim, Trevon Badloe, Joohoon Kim, Dong Kyo Oh, Kashif Riaz, Tauseef Tauqeer, Usman Younis, Murtaza Saleem, Muhammad Sabieh Anwar, Muhammad Zubair, Muhammad Qasim Mehmood, Junsuk Rho
Summary: The team successfully designed a metasurface based on asymmetrical spin-orbit interactions that operates in the visible light domain using low-loss dielectric materials. This cost-effective design offers potential applications in asymmetric data inscription and smartphone displays, among others.
MICROSYSTEMS & NANOENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Ye Du, Wei-Qiang Liao, Yibao Li, Chao-Ran Huang, Tian Gan, Xiao-Gang Chen, Hui-Peng Lv, Xian-Jiang Song, Ren-Gen Xiong, Zhong-Xia Wang
Summary: A homochiral organic ferroelectric crystal that exhibits reversible photoinduced molecular orbital breaking and enables reversible switching of ferroelectric domains by optical manipulation was synthesized for the first time. This finding sheds light on the exploration of molecular orbital breaking in ferroelectrics for optical manipulation of ferroelectricity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Astronomy & Astrophysics
R. L. P. G. Amaral, V. E. R. Lemes, O. S. Ventura, L. C. Q. Vilar
Summary: After the phase transition of a grand unified theory, the couplings of the basic interactions split from the single coupling. In the symmetric phase, the couplings associated with SU(2) and U(1) symmetries were already distinct before the electroweak breaking, as determined by the measurement of the Weinberg mixing angle. Each independent coupling should be associated with independent cocycles defined on a cohomological basis from the perspective of BRST symmetry.
Article
Chemistry, Multidisciplinary
Md Gius Uddin, Susobhan Das, Abde Mayeen Shafi, Vladislav Khayrudinov, Faisal Ahmed, Henry Fernandez, Luojun Du, Harri Lipsanen, Zhipei Sun
Summary: Engineering the dipole orientation and symmetry of materials by integrating 1D nanowires with 2D layered materials is reported. This mixed-dimensional heterostructure enhances optical responses and breaks the symmetry of materials, leading to strong optical anisotropy.
Article
Biochemistry & Molecular Biology
Dan S. Petrescu, Omar K. Zahr, Ismael Abu-Baker, Amy Szuchmacher Blum
Summary: Although synthesizing nanoparticles has advanced, assembling them into controllable patterns remains a challenge. This study demonstrates the use of TMV coat protein to self-assemble plasmonic nanoparticles and shows the utility of viral proteins in designing nanostructured building blocks.
Article
Materials Science, Multidisciplinary
Sachin Kumar, Hassan Almusawa, Shubham Kumar Dhiman, M. S. Osman, Amit Kumar
Summary: This paper utilizes Lie symmetry analysis to explore closed-form solutions for a (2+1)-dimensional Bogoyavlenskii's breaking soliton equation, demonstrating new and diverse results in terms of multiple solitons and solitary waves. By reducing the equation into nonlinear ODEs using Lie symmetry reductions, the study confirms the efficiency and validity of the approach in obtaining various types of wave structures and their dynamics.
RESULTS IN PHYSICS
(2021)
Article
Optics
Yusef Maleki, Chaofan Zhou, M. Suhail Zubairy
Summary: This study presents the chiral transfer of quantum information in a metal nanoring network, enabling the transport and processing of chiral quantum states in nanorings by breaking the time-reversal symmetry. The direction of chirality can be controlled by preparing a quantum dot in its ground or excited state, achieving perfect or partial chiral transfer of excitation. The synthetic magnetic field used allows for the generation of specifically tailored nanoring states.
Article
Chemistry, Multidisciplinary
Hao Tian, Runxi Zhu, Peilin Deng, Jing Li, Wei Huang, Qi Chen, Ya-Qiong Su, Chunman Jia, Zhongxin Liu, Yijun Shen, Xinlong Tian
Summary: A 2D nanoring catalyst with efficient ethanol oxidation reaction (EOR) performance was prepared, and the mechanisms of enhanced performance and C-C bond selectivity were revealed.
Article
Chemistry, Multidisciplinary
Yi-Bo Tian, Qiao-Hong Li, Zirui Wang, Zhi-Gang Gu, Jian Zhang
Summary: This study investigates the effect of structural asymmetry on the nonlinear optics of metal-organic frameworks (MOFs). Thin films of indium-porphyrinic framework (InTCPP) were grown and the coordination-induced symmetry breaking on their third-order NLO was studied. The results show that InTCPP thin films coordinated with Fe2+ and Fe3+Cl- exhibit enhanced NLO performance, with InTCPP(Fe3+Cl-) causing a 3-fold increase in the nonlinear absorption coefficient compared to InTCPP(Fe2+).
Article
Multidisciplinary Sciences
Mikko Partanen, Jukka Tulkki
Summary: This study shows that the momentum and radiation pressure of light in negative-index metamaterials can be positive or negative depending on their subwavelength structure, with the material's negative momentum resulting from the optical force density causing negative radiation pressure.
SCIENTIFIC REPORTS
(2022)
Article
Physics, Applied
Giovanni Azzolina, Roman Bertoni, Eric Collet
Summary: Spin-transition materials can undergo various types of phase transitions, including non-symmetry-breaking spin transitions and symmetry-breaking phenomena like structural order or spin-state concentration waves. The Landau approach can be used to describe the coupling between these two types of instabilities, generating different sequences of phase transitions.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Meng Liu, Eric Plum, Hua Li, Shaoxian Li, Quan Xu, Xueqian Zhang, Caihong Zhang, Chongwen Zou, Biaobing Jin, Jiaguang Han, Weili Zhang
Summary: Chiral media exhibit optical activity by differential retardation and attenuation of circularly polarized electromagnetic waves. Control of chirality, optical activity, and refractive index is demonstrated using a terahertz metamaterial based on 3D-chiral metallic resonators and achiral vanadium dioxide inclusions. The chiral structure shows pronounced optical activity and a negative refractive index at room temperature, while becoming achiral and having a positive refractive index upon heating. The chiral response originates from magnetic coupling and transitions to electric dipole excitations. Rotationally symmetric design allows the structure to function as a tunable polarization rotator, adjustable linear polarization converter, and switchable circular polarizer.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Mohamed Ismail Abdelrahman, Evgeniia Slivina, Carsten Rockstuhl, Ivan Fernandez-Corbaton
Summary: This study investigates the effects of perturbatively breaking rotational symmetry and electromagnetic duality symmetry on backscattering, finding that backscattering can be almost entirely suppressed by deliberately breaking duality symmetry.
SCIENTIFIC REPORTS
(2021)
Article
Physics, Applied
Nicolas Bachelard, Chad Ropp, Sui Yang, Xiang Zhang
Summary: This research demonstrates that disorder-induced Anderson localization can be mitigated and transmission restored in random media through self-organization and energy dissipation. Under a driving optical field, a colloid suspension can spontaneously form a Bloch-like mode, overcoming the statistical decay expected in random media.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Multidisciplinary
Xiaoxiao Wu, Yan Meng, Yiran Hao, Ruo-Yang Zhang, Jensen Li, Xiang Zhang
Summary: A general scheme has been developed to induce topological corner modes (TCMs) in arbitrary geometries, allowing for construction and experimental observation of TCMs in square and pentagonal domains incompatible with underlying triangular lattices. This scheme enables arbitrary specification of numbers and positions of TCMs, which will be crucial for future on-chip topological circuits. The research findings reveal rich physics of aperiodic modulations and advance applications of TCMs in realistic scenarios.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Yan Meng, Xiaoxiao Wu, Yaxi Shen, Dong Liu, Zixian Liang, Xiang Zhang, Jensen Li
Summary: This article introduces a new device based on non-Hermitian topological systems, which combines the advantages of topological robustness and non-Hermiticity to achieve continuous and quantitative control of energy distribution ratio of waves. The device can be used as a sensitive beam splitter or a coupler switch, with potential applications in elastic circuits or networks.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2022)
Article
Physics, Multidisciplinary
H. Ollivier, P. Priya, A. Harouri, I. Sagnes, A. Lemaitre, O. Krebs, L. Lanco, N. D. Lanzillotti-Kimura, M. Esmann, P. Senellart
Summary: The control of the excitonic fine structure for quantum dots embedded in micropillar cavities has been demonstrated using remote electrical contacts. This allows for three-dimensional control of the electrical field and enables tuning and canceling of the fine structure, a crucial step for the reproducibility of quantum light source technology.
PHYSICAL REVIEW LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Jianhao Zhang, Paula Nuno Ruano, Xavier Le-Roux, Miguel Montesinos-Ballester, Delphine Marris-Morini, Eric Cassan, Laurent Vivien, Norberto Daniel Lanzillotti-Kimura, Carlos Alonso Ramos
Summary: This research demonstrates a new opto-mechanical confinement approach that utilizes subwavelength structuration of silicon to tightly confine photons and phonons in non-suspended silicon waveguides, fully compatible with standard silicon photonics. Experimental results show high-quality optical excitation and readout of mechanical modes in optomechanical microresonators under ambient conditions and room temperature.
Article
Physics, Applied
E. R. Priya, E. R. Cardozo de Oliveira, N. D. Lanzillotti-Kimura
Summary: Nanomechanics, nanoacoustics, and nanophononics refer to the engineering of acoustic phonons and elastic waves at the nanoscale and their interactions with other excitations. The development of advanced nanofabrication and characterization techniques has greatly contributed to the progress in these fields over the last decade. Applications of nanophononics include thermal management, ultrafast data processing, simulation, sensing, and the development of quantum technologies.
APPLIED PHYSICS LETTERS
(2023)
Article
Optics
Paula Nuno Ruano, Jianhao Zhang, Daniele Melati, David Gonzalez-Andrade, Xavier Le Roux, Eric Cassan, Delphine Marris-Morini, Laurent Vivien, Norberto Daniel Lanzillotti-Kimura, Carlos Alonso-Ramos
Summary: We propose a new strategy to achieve strong on-chip Brillouin gain in silicon waveguides by combining genetic algorithm optimization and periodic subwavelength structuration to simultaneously engineer photonic and phononic modes. The optimized waveguide geometry, obtained through a multi-physics genetic algorithm, predicts a remarkable Brillouin gain exceeding 3300 W-1m-1 for a mechanical frequency near 15 GHz.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Anne Rodriguez, Priya Priya, Edson R. Cardozo R. de Oliveira, Abdelmounaim Harouri, Isabelle Sagnes, Florian Pastier, Luc Le Gratiet, Martina Morassi, Aristide Lemaitre, Loic Lanco, Martin Esmann, Norberto Daniel Lanzillotti-Kimura
Summary: In this study, the polarization of excitation laser and Brillouin signal in bulk crystalline solids is manipulated using polarization-sensitive optical resonances in elliptical micropillars, allowing for measurement of acoustic phonons with frequencies difficult to access with standard Brillouin and Raman spectroscopies. This technique can have applications in various polarization-sensitive optical systems, and in optomechanical, optoelectronic, and quantum optics devices.
Article
Nanoscience & Nanotechnology
Beatriz Castillo Lopez de Larrinzar, Chushuang Xiang, Edson Rafael Cardozo de Oliveira, Norberto Daniel Lanzillotti-Kimura, Antonio Garcia-Martin
Summary: The possibility of creating and manipulating nanostructured materials has led to the exploration of new strategies to control electromagnetic properties. A simple structure based on crossed elongated bars is presented, where the dominating cross-section absorption or scattering is defined by left-handedness or right-handedness, with a 200% difference from its counterpart. This chiral system opens up possibilities for enhanced coherent phonon excitation and detection.
Article
Acoustics
E. R. Cardozo de Oliveira, C. Xiang, M. Esmann, N. Lopez Abdala, M. C. Fuertes, A. Bruchhausen, H. Pastoriza, B. Perrin, G. J. A. A. Soler-Illia, N. D. Lanzillotti-Kimura
Summary: We report mesoporous titanium dioxide-based acoustic resonators with resonances up to 90 GHz and quality factors from 3 to 7. Numerical simulations show good agreement with picosecond ultrasonics experiments. We also study the effect of changes in the speed of sound on the resonator's performance, which can be induced by liquid infiltration into the mesopores. These findings constitute the first step towards engineering reconfigurable optoacoustic sensors based on mesoporous thin films.
Proceedings Paper
Engineering, Electrical & Electronic
Jianhao Zhang, Paula Nuno-Ruano, Xavier Le Roux, Eric Cassan, Delphine Marris-Morini, Laurent Vivien, Norberto Daniel Lanzillotti-Kimura, Carlos Ramos
Summary: Integrated optomechanical cavities enable precise control of optical and mechanical modes, facilitating strong photon-phonon interactions in micron-scale volume. Silicon photonics, with low production cost and compatibility with state-of-the-art optoelectronic circuitry, is particularly interesting for on-chip optomechanics. However, the higher stiffness and acoustic velocity of silicon pose challenges for phonon confinement in silicon-on-insulator (SOI) waveguides. In this study, we demonstrate the optomechanical coupling between photons and high-quality factor phonons in non-suspended cavities using subwavelength period silicon pillars, leveraging strong radiation pressure.
INTEGRATED OPTICS: DEVICES, MATERIALS, AND TECHNOLOGIES XXVII
(2023)
Article
Materials Science, Multidisciplinary
Dongwoo Lee, N. D. Lanzillotti-Kimura, Jensen Li, Junsuk Rho
Summary: This study fills the knowledge gap in thin-plate flexural waves in topological engineering and utilizes localized states for energy harvesting.
Proceedings Paper
Engineering, Electrical & Electronic
Priya Priya, Anne Rodriguez, Omar Ortiz, Aristide Lemaitre, Martin Esmann, Norberto Daniel Lanzillotti-Kimura
Summary: GaAs/AlAs heterostructures provide a unique platform for optophononic systems, with excellent performance in both optical and acoustic domains.
NANOENGINEERING: FABRICATION, PROPERTIES, OPTICS, THIN FILMS, AND DEVICES XIX
(2022)
Article
Materials Science, Multidisciplinary
Sui Yang, Wei Bao, Xiaoze Liu, Jeongmin Kim, Rongkuo Zhao, Renmin Ma, Yuan Wang, Xiang Zhang
Summary: Halide perovskites possess remarkable photophysical properties that have led to high-performance lasers, but challenges in emission dynamics and laser size reduction remain. Plasmonic cavities have been used to address these challenges, but limitations still exist due to the trade-off between cavity size reduction and increased losses. The hybrid surface plasmon polaritons (SPPs) coupled with perovskites have shown to significantly reduce loss channels and enhance emission dynamics, paving the way for on-chip ultrafast optoelectronics.
Article
Chemistry, Multidisciplinary
Yeon Ui Lee, Clara Posner, Zhaoyu Nie, Junxiang Zhao, Shilong Li, Steven Edward Bopp, Gde Bimananda Mahardika Wisna, Jeongho Ha, Chengyu Song, Jin Zhang, Sui Yang, Xiang Zhang, Zhaowei Liu
Summary: The resolution capability of SIM is crucial in various fields, but achieving resolutions beyond 40 nm at visible frequencies remains a challenge. This study introduces a low-loss natural organic hyperbolic material (OHM) that can support high spatial-frequency modes beyond 50k(0) at visible frequencies. It demonstrates imaging resolution at 30 nm scales with enhanced photo stability, biocompatibility, ease of use, and cost-effectiveness.
