Article
Chemistry, Physical
Min Xi, Cui Liu, Nian Li, Shudong Zhang, Zhenyang Wang
Summary: The coupled plasmonic modes of noble metal nanoparticles, specifically the dipole-multipole coupling in asymmetric dimers of Au NRs, were systematically investigated through electromagnetic simulations. The study focused on the hybridization between different resonances and the effects of gap space and dipole orientation. It was found that the parallel aligned D-M plasmonic hybridization led to asymmetric split resonances, with different energy levels for the multipolar and dipolar resonances. The work has important implications for understanding and utilizing the D-M plasmonic hybridization system in various applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Optics
Yue Zhang, Tao Xiong, Dandan Dong, Wei Wang, Cheng Sun
Summary: This study investigates the plasmonic properties of a symmetry-breaking system composed of rhodium dual broken nanorings in the ultraviolet-visible regime. By varying the separation, light polarization, and relative orientation of the broken angles, the plasmonic scattering efficiency is examined using the finite difference time domain method. Multiple plasmonic resonances are discovered, and their asymmetry-induced Fano-like lineshapes are fitted to a model employing multiple Fano lineshape functions. The resonance wavelengths, spectral widths, and characteristic q values are determined, providing quantitative insights into the plasmonic characteristics of the system. The findings of this study have potential implications for the design of plasmonic devices operating at ultraviolet-visible wavelengths.
APPLIED PHYSICS B-LASERS AND OPTICS
(2023)
Article
Optics
Gui-Ming Pan, Li-Feng Yang, Fang-Zhou Shu, Yan-Long Meng, Zhi Hong, Zhong-Jian Yang
Summary: This study demonstrates that the interaction between magnetic dipole emitters and silver oligomers can excite anapole states with unique properties, effectively suppressing radiative power and providing an ideal platform for studying non-radiative transitions. These findings introduce magnetic anapoles to plasmonics and open up new possibilities for the development of high-performance magnetic-dipole-based optoelectronic devices.
PHOTONICS RESEARCH
(2022)
Article
Physics, Applied
Lei Kang, Joshua A. Robinson, Douglas H. Werner
Summary: This study demonstrates the highly sensitive refractive index sensing of nano-engineered ultrathin 2D-metal films supporting infrared plasmons. The plasmonic resonances observed on nano-ribbons and nanoribbons exhibit strong refractive index sensitivity, which is of great significance for the development of nanoscale optical sensors.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Chuhua Wu, Zicong Guo, Shuxian Chen, Jun Yang, Kunhua Wen
Summary: In this study, a coupled plasmonic resonant system using a metal-insulator-metal (MIM) waveguide is proposed to generate multiple Fano resonances. By employing the multi-mode interference coupled-mode theory (MICMT), the system is analyzed theoretically and numerically validated with the finite-difference time-domain (FDTD) method. The designed structures show great potential for high integrated optical circuits of chip-scale optical sensors, slow light devices, or splitters, with the ability to manipulate Fano peaks through adjusting the parameters of the defective ring cavity.
RESULTS IN PHYSICS
(2021)
Article
Physics, Applied
E. Mejia, Y. Qian, S. A. Safiabadi Tali, J. Song, W. Zhou
Summary: The study demonstrates that fixed-size tapered nanolaminate nanoantennas can achieve wide double-resonance spectral tunability by changing the metal-to-insulator thickness ratio. Experimental results show that these antennas can support tunable resonant wavelengths and exhibit great performance in terms of electromagnetic responses.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Min Xi, Cui Liu, Nian Li, Shudong Zhang, Zhenyang Wang
Summary: Plasmonic hybridization in complex nanostructures is studied in this manuscript, comparing the similarities of different building blocks and analyzing the effects of separation and coupling. The research contributes to the fundamental understanding of plasmonic hybridization systems and opens up new possibilities in the fields of plasmonic-photonics and nanoplasmonics.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Shunsheng Ye, Huaining Zha, Yifan Xia, Wenhao Dong, Fan Yang, Chenglin Yi, Jing Tao, Xiaoxue Shen, Dong Yang, Zhihong Nie
Summary: This article presents a bottom-up strategy to precisely organize and orient plasmonic molecules on substrates using a combination of directional capillary force and supporting polymer film. The resulting superlattices exhibit highly tunable collective optical properties, making them suitable for advanced plasmonic devices.
Article
Optics
Zhiwei Hu, Ximin Cui, Yang Li, Xiaobo Han, Huatian Hu
Summary: This study numerically demonstrates a simple plasmonic nanocube-hexagonal-nanoplate heterodimer that exhibits a strong, tunable self-induced transparency window. It also observes multiple exciton-induced transparency windows. These findings are important for understanding and manipulating light-matter interactions.
Article
Nanoscience & Nanotechnology
Tailin Zhang, Xingyuan Zhang, Yun Shen, Yinsheng Xu, Laibin Luo, Jianqiang Gu, Sijia Yang, Jie Xu, Xiaohua Deng
Summary: In this study, a terahertz BIC metasurface structure composed of metal split ring resonators (SRRs) was designed. The leakage process of BIC states to the far field was studied by changing the gap width of SRR based on the symmetric protection principle of superlattice mode. By introducing multiple SRRs and changing their arrangement, three superlattice modes and BIC states were obtained. Experimental observations confirmed the leakage of BIC states into the far field, forming observable quasi-BIC patterns. A feasible method for flexible design and implementation of BIC was verified.
Article
Chemistry, Multidisciplinary
Feifei Zhang, Jerome Plain, Davy Gerard, Jerome Martin
Summary: This study numerically investigates the influence of surface roughness on the plasmonic properties of aluminum nanodisks, revealing different effects on the out-of-plane quadrupolar mode and in-plane dipolar mode. The results show that increasing surface roughness significantly dampens the quadrupolar mode while broadening and redshifting the dipolar resonance. These effects are attributed to the decoherence and dissipation of electronic oscillations due to surface roughness, and are experimentally confirmed by characterizing the optical properties of periodic aluminum nanodisk arrays.
Article
Nanoscience & Nanotechnology
Zhiyi Li, Xiuye Zhang, Dainan Zhang, Bo Liu, Hao Meng, Jiapeng Xu, Zhiyong Zhong, Xiaoli Tang, Huaiwu Zhang, Lichuan Jin
Summary: The research investigates the magnetization dynamics of a YIG/Au/YIG magnon valve, revealing the presence of asymmetric Fano resonance qualitatively and quantitatively. The study provides insights into the relationship between the Fano resonance feature and the interaction sign, paving the way for the development of quantum information devices based on magnon valves.
Article
Chemistry, Physical
Ke An, Jingtian Hu, Jianfang Wang
Summary: Plasmonic photocatalysis has attracted attention in enhancing solar-to-chemical conversion efficiency. However, current plasmonic photocatalysts have limited efficiency due to rapid recombination and the Schottky barrier. A new type of plasmonic photocatalyst, the Schottky-barrier-free plasmonic photocatalyst, has been proposed to overcome these limitations.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Optics
Huaxin LI, Yatao Ren, Yang LI, Mingjian He, Baohai Gao, Hong Qi
Summary: This study investigates a sub-wavelength particle manipulation technique based on plasmonic optical tweezers, which utilizes local plasmonic resonance to generate strong gradient force for particle sorting. The results show that the sorting device can effectively sort particles of different diameters and refractive indices.
Article
Optics
Feifei Zhang, Jerome Martin, Shunsuke Murai, Pierre-Michel Adam, Jerome Plain, Katsuhisa Tanaka
Summary: This study investigates the optical properties of metallic nanodisks in different dielectric environments, demonstrating the generation of Fano resonance by increasing the nanodisk height and elucidating the underlying physical mechanisms. Experimental results confirm the significant impact of higher modes on the plasmonic resonances of taller Al nanodisks.
Article
Chemistry, Multidisciplinary
Mark F. Nueesch, Milos T. Ivanovic, Jean-Benoit Claude, Daniel Nettels, Robert B. Best, Jerome Wenger, Benjamin Schuler
Summary: The use of nanophotonic fluorescence enhancement in zero-mode waveguides dramatically improves time resolution and reduces data acquisition times, enabling measurement of previously inaccessible low-nanosecond dynamics in biomolecules. This approach allows for better detection of biomolecular dynamics and achieves highly consistent results with all-atom molecular dynamics simulations.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Optics
Saaxewer Diop, Alexandre Olle, Nadja Roquin, Marine Chorel, Eric Lavastre, Laurent Gallais, Nicolas Bonod, Laurent Lamaignere
Summary: This study compares laser-induced damage growth dynamics with different beam profiles. The results show that the laser-induced damage growth threshold is independent of the incident beam profile. However, a higher damage growth rate is measured with squared top-hat beams. Additionally, three different regimes in the growth dynamics are identified. A numerical model is developed to simulate the complete damage growth sequence for different beam profiles, which agrees well with the observations.
Article
Multidisciplinary Sciences
Aleksandr Barulin, Prithu Roy, Jean-Benoit Claude, Jerome Wenger
Summary: The authors introduce optical horn antennas, a nanophotonic platform, for the label-free detection of UV autofluorescence from single proteins. This technique allows for real-time monitoring of protein unfolding and dissociation.
NATURE COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Satyajit Patra, Jean-Benoit Claude, Jerome Wenger
Summary: This study thoroughly investigates the influence of zero-mode waveguide (ZMW) on the fluorescence of single molecules. The results show that the photostability is preserved in ZMW and both fluorescence brightness and total number of emitted photons are increased. Additionally, it is demonstrated that nanophotonics can enhance the FRET process.
Article
Optics
Isam Ben Soltane, Guillaume Hallo, Chloe Laombe, Laurent Lamaignere, Nicolas Bonod, Jerome Neauport
Summary: A systematic approach based on deep learning computer vision pipeline is introduced to estimate the dimensions of damage sites of the glass windows in high power laser facilities. The pipeline demonstrates higher efficiency than classical machine learning approaches in estimating damage sites smaller than the repair threshold. The performance of the pipeline on three datasets is evaluated to show its robustness and accuracy.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2022)
Article
Optics
Saaxewer Diop, Marine Chorel, Eric Lavastre, Nadja Roquin, Laurent Gallais, Nicolas Bonod, Laurent Lamaignere
Summary: The peak power of high-power laser facilities is limited by the laser-induced damage to the final optical components. Improving the initiation threshold through a modification of the mirror design can lead to the reduction of the damage growth phenomenon.
Article
Cell Biology
Carla Silva Martins, Cyntia Taveneau, Gerard Castro-Linares, Mikhail Baibakov, Nicolas Buzhinsky, Mar Eroles, Violeta Milanovic, Shizue Omi, Jean-Denis Pedelacq, Francois Iv, Lea Bouillard, Alexander Llewellyn, Maxime Gomes, Mayssa Belhabib, Mira Kuzmic, Pascal Verdier-Pinard, Stacey Lee, Ali Badache, Sanjay Kumar, Cristel Chandre, Sophie Brasselet, Felix Rico, Olivier Rossier, Gijsje H. Koenderink, Jerome Wenger, Stephanie Cabantous, Manos Mavrakis
Summary: Septins are cytoskeletal proteins that form octamer-containing filaments and mediate actin-membrane anchoring, contributing to cell stiffness and mechanics.
JOURNAL OF CELL BIOLOGY
(2022)
Article
Optics
Isam Ben Soltane, Remi Colom, Brian Stout, Nicolas Bonod
Summary: The electromagnetic response of optical systems can be described by scattering operators, and efforts have been made to retrieve the spectral response of the optical systems by expanding the S-matrix in terms of its singularities. This study focuses on a planar optical cavity and derives analytical expressions for the poles, residues, reflection/transmission Fresnel coefficients, and impulse response function of the cavity. The convergence of this approach is thoroughly discussed for dispersive and metallic slabs, and it can be achieved by increasing the number of poles or considering a fictive resonant term.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Chloe Lacombe, Laurent Lamaignere, Guillaume Hallo, Martin Sozet, Thierry Donval, Gerard Raze, Christel Ameil, Melusine Benoit, Florian Gaudfrin, Edouard Bordenave, Nicolas Bonod, Jerome Neauport
Summary: Large fusion scale laser facilities aim to produce megajoules of laser energy in the UV spectrum and nanosecond regime. The laser damage of final optics is a crucial issue due to the high laser energies, as it affects the quality and performance of the optical components. To address this issue, it is important to monitor the damage growth process, which involves onsite observation and prediction of growth features. In this study, a dedicated full size optical component was designed and manufactured to study damage growth at increased energy, providing valuable statistics for calibration.
Article
Optics
Saaxewer Diop, Marine Chorel, Alexandre Olle, Nadja Roquin, Eric Lavastre, Laurent Gallais, Nicolas Bonod, Laurent Lamaignere
Summary: This study provides a comprehensive investigation of the laser damage on optical components in the PETAL facility, focusing on the dependency of damage growth features on incident polarization direction. The experimental results show different thresholds, dynamics, and morphologies of damage growth in s- and p-polarization. A numerical model is developed to assess the experimental observations, demonstrating the influence of polarization on damage growth.
Article
Optics
Remi Colom, Elena Mikheeva, Karim Achouri, Jesus Zuniga-Perez, Nicolas Bonod, Olivier J. F. Martin, Sven Burger, Patrice Genevet
Summary: Full wavefront control requires spatial phase modulation ranging from 0 to 2pi. The radiative coupling of optical components makes them non-Hermitian systems, described by complex eigenfrequencies. Breaking parity or time symmetry moves the singularities of reflection or transmission matrices. This understanding is applied to engineer electromagnetic fields, with non-Hermitian topological features playing a pivotal role.
LASER & PHOTONICS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Prithu Roy, Siyuan Zhu, Jean-Benoit Claude, Jie Liu, Jerome Wenger
Summary: Plasmonic optical nanoantennas have been widely studied for their ability to enhance light-matter interactions at the nanoscale. This research focuses on the UV range, which has been overlooked in previous studies. By constructing UV resonant nanogap antennas using rhodium nanocubes, the researchers were able to significantly enhance the UV autofluorescence of proteins and achieve detection at high concentrations. This work expands the applicability of plasmonic nanoantennas to the deep UV range and enables the investigation of label-free proteins at physiological concentrations.
Article
Physics, Multidisciplinary
I Ben Soltane, R. Colom, F. Dierick, B. Stout, N. Bonod
Summary: This paper investigates the complex functions of physical systems and signals in the harmonic domain, and derives the multiple-order singularity expansion method. The common singularity and zero expansion and factorization expressions are rigorously derived and generalized to the case of singularities of arbitrary order. The research is of great significance for describing the physical properties of a system and studying its response dynamics in the temporal and harmonic domains.
NEW JOURNAL OF PHYSICS
(2023)
Article
Optics
Saaxewer Diop, Nicolas Bonod, Marine Chorel, Eric Lavastre, Nadja Roquin, Lilian Heymans, Pierre Brianceau, Laurent Gallais, Laurent Lamaignere
Summary: This study investigates the influence of multilayer dielectric design on the laser damage resistance of pulse compression gratings. Numerical and experimental results demonstrate the impact of dielectric stack design on the electric field intensity and laser-induced damage threshold.
Article
Physics, Multidisciplinary
Jean-Benoit Claude, Mohammed Bouabdellaoui, Mario Khoury, Jerome Wenger, Monica Bollani, Marco Salvalaglio, Marco Abbarchi
Summary: In this study, we investigate the fabrication of nano-architectures by impacting thin layers of amorphous Ge deposited on SiO2 with a Ga+ ion beam and analyze their structural and optical properties. By adjusting beam current and scanning parameters, various types of nano-architectures can be obtained. The disordered structures exhibit a nearly hyperuniform character with suppressed large length scale fluctuations compared to ordered systems. The resulting nano-structured films demonstrate peculiar reflection properties, showing potential applications in electronic and photonic devices, energy storage, and sensing.
