Article
Materials Science, Multidisciplinary
Joel Q. Grim, Ian Welland, Samuel G. Carter, Allan S. Bracker, Andrew Yeats, Chul Soo Kim, Mijin Kim, Kha Tran, Igor Vurgaftman, Thomas L. Reinecke
Summary: We demonstrate the scattering of laser light from two InAs quantum dots coupled to a photonic crystal waveguide by strain-tuning the optical transitions of the dots into mutual resonance. The nonlinearity is enhanced by scattering laser light from two dots, providing a means of manipulating few-photon optical nonlinearities. This approach also establishes opportunities for multiemitter quantum optics in a solid-state platform.
Article
Materials Science, Multidisciplinary
Jianzhi Chen, Jianlan Xie, Exian Liu, Bei Yan, Jianjun Liu
Summary: This paper investigates interfaces in photonic crystals constructed by two 2D PCs with different rectangular lattices but the same materials, shapes, and sizes of dielectric rods. The retainability of the interface states in rectangular lattice PCs is found to be related to the length-width ratio, positions of photonic bandgaps, or Zak phases. These findings provide new insights into generating interface states easily with only one kind of dielectric rod and understanding the relationship between geometry and interface states.
RESULTS IN PHYSICS
(2021)
Article
Physics, Applied
Zhengyi He, Guanglin Zhang, Shan Zhang, Xiaoqiang Feng, Zhiduo Liu, Gang Wang, Siwei Yang, Guqiao Ding
Summary: In this study, three-dimensional graphene was synthesized on silicon-on-insulator wafers using plasma-assisted chemical vapor deposition, resulting in high-performance broadband photodetectors. The integration of different structures enhanced light absorption, leading to excellent performance in the near-infrared range.
APPLIED PHYSICS LETTERS
(2021)
Article
Engineering, Environmental
Yu Tian, Zhijie Zhu, Qing Li, Jing Zhang, Cai-Feng Wang, Guan Wu, Shen Shen Li, Ji Jun Xiao, Su Chen
Summary: The article describes a hydrophobic-force-induced self-assembly method that can efficiently, without coffee ring effects, and visually create homogeneous and dual-color colloidal photonic crystals. The effectiveness of this method is further confirmed by dissipative particle dynamics simulations and it can also be used to prepare a variety of multi-structural colored CPCs.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Multidisciplinary Sciences
Jakob Rieser, Mario A. Ciampini, Henning Rudolph, Nikolai Kiesel, Klaus Hornberger, Benjamin A. Stickler, Markus Aspelmeyer, Uros Delic
Summary: Arrays of optically trapped nanoparticles have been used to study complex nonequilibrium phenomena. However, the ability to precisely control the interactions between particles has been limited. In this study, the researchers coupled two nanoparticles using the phase coherence between the optical fields that drive the light-induced dipole-dipole interaction. They also observed electrostatic coupling between charged particles by effectively switching off the optical interaction. These findings provide a route to developing programmable many-body systems of interacting nanoparticles with tunable nonreciprocal interactions.
Article
Physics, Multidisciplinary
Zaky A. Zaky, M. Al-Dossari, Nahla Saleh, Maha M. Abdelhady, Arvind Sharma, V. D. Zhaketov, Arafa H. Aly
Summary: A photonic crystal structure with parity-time symmetry is investigated for the design of a biomedical sensor in biosensing applications. The transmittance spectra and performance parameters of the structure are evaluated. Different parameters such as unit cell number, sample layer thickness, and incident angle are studied theoretically and numerically. An optimization technique is used to improve device performance, achieving high sensitivities of 496 nm RIU and 1002142%/RIU. The proposed device shows promise as a high-precision detection device for biosensing applications.
Article
Optics
Baihong Li, Holger F. Hofmann
Summary: Broadband energy-time entanglement enhances two-photon absorption rate by precise resonance and short coincidence time. Broadband TPA is not sensitive to intermediate level spectrum, making it optimal for entirely virtual intermediate transitions. By introducing phase dispersion matching intermediate resonances, TPA can be enhanced.
Article
Physics, Multidisciplinary
Pascal Naidon, Ludovic Pricoupenko, Christiane Schmickler
Summary: We investigate the interaction between two identical fermions in the p-wave channel. Additionally, each fermion interacts with a nearby particle through the s-wave resonance. Our findings reveal that besides the universal trimer states resulting from the s-wave particle-fermion interaction, the fermion-fermion p-wave interaction also induces one or two shallow trimers within a wide range of control parameters. This includes a special regime called "borromean regime," where the ground-state trimer exists in the absence of a dimer at any mass ratio between the fermions and the particle. This work provides a generic picture of the trimer spectrum based on the low-energy parameters of the interactions.
Article
Multidisciplinary Sciences
Nicolas Z. Lizama, Sebastian C. Carrasco, Jose Rogan, Juan Alejandro Valdivia
Summary: The two trapped quantum particles interacting problem is generalized to three dimensions, and solved using the exact Coulomb potential. The results show that expanding the wavefunction in terms of the isotropic harmonic oscillator eigenfunctions and Hydrogen atom eigenfunctions independently provides prime approximations for different domains of the normalized coupling constant. The proposed three-dimensional approach facilitates the distinction between bosons and fermions while the solutions given by the expansions better define the behavior of the particles for repulsive potentials.
SCIENTIFIC REPORTS
(2023)
Article
Physics, Applied
Wen-Zhe Yan, Zhibo Hou, Jun-Feng Tang, Guo-Yong Xiang, Chuan-Feng Li, Guang-Can Guo, Marc-Olivier Renou
Summary: Researchers have designed a universal measurement device capable of implementing arbitrary entangled POVMs. They applied the device to the task of direction guessing and achieved optimal results. This work is significant for building a versatile quantum measurement device for various quantum information tasks.
PHYSICAL REVIEW APPLIED
(2023)
Article
Physics, Multidisciplinary
Guangyao Li, Olivier Bleu, Meera M. Parish, Jesper Levinsen
Summary: The study examines the interaction between strong light and matter, as well as charge doping. By using a simplified model of a two-dimensional semiconductor embedded in a microcavity, a diagrammatic formalism is developed for the system with an emphasis on the scatterings between different particles. Results indicate that the scattering between spin-polarized polaritons and electrons is significantly enhanced due to the shifted collision energy from strong light-matter coupling.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Applied
Weipeng Hu, Chao Liu, Jun Guo, Xiaoyu Dai, Shuangchun Wen, Yuanjiang Xiang
Summary: This study proposes a high-efficiency second-harmonic generation (SHG) using dual-frequency topological edge states (TESs) in topological photonic crystals (TPCs) with slow-light conditions. The wave vector matching and energy conservation conditions are achieved by adjusting the structural parameters of TPCs. The double-resonant nonlinear interaction between two TESs is enabled using a square lattice TPC. The topological localization of TESs and the long interaction time of the slow-light effect significantly increase the energy densities of the fundamental wave and SHG.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Polymer Science
Bingqing Zheng, Genqi Liu, Lingli Zhao, Gang Wang, Yue Wang
Summary: We have developed a novel molecularly imprinted two-dimensional photonic crystal hydrogels (LVFXMIPCH) sensor for the visual monitoring of levofloxacin (LVFX). By measuring the diameter of the Debye diffraction ring, the response performance of the sensor was explored. The LVFX-MIPCH sensor showed high sensitivity (as low as 10^(-12) M), excellent specific recognition, and stable reusability.
Article
Optics
Fam Le Kien, Sile Nic Chormaic, Thomas Busch
Summary: The optical force between two coupled parallel nanofibers was studied using the array mode theory. It was found that the forces of even array modes are attractive, while the forces of odd array modes are repulsive. The optical forces depend on the array mode type, fiber radius, light wavelength, and fiber separation distance.
Article
Optics
E. Ya. Glushko
Summary: In this study, the interaction of a p-polarized electromagnetic wave with a thin metal film through a 1D photonic crystal resonator was analyzed, resulting in the generation of needle-shaped Fano type absorption peaks in the terahertz frequency region. The absorption peaks exhibited properties of surface plasmon resonances at inclined incidence, with frequencies matching the standing modes of the bare photonic crystal resonator at whispering incident angles.
Article
Multidisciplinary Sciences
Alessandro Ferreri, Michelangelo Domina, Lucia Rizzuto, Roberto Passante
Article
Physics, Multidisciplinary
Giuseppe Fiscelli, Lucia Rizzuto, Roberto Passante
PHYSICAL REVIEW LETTERS
(2020)
Article
Physics, Multidisciplinary
Satoshi Tanaka, Kazuki Kanki
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS
(2020)
Editorial Material
Physics, Multidisciplinary
Giuseppe Fiscelli, Lucia Rizzuto, Roberto Passante
PHYSICAL REVIEW LETTERS
(2021)
Article
Multidisciplinary Sciences
Sho Nakade, Kazuki Kanki, Satoshi Tanaka, Tomio Petrosky
Summary: This study demonstrates an interesting anomaly in the diffusion process of a one-dimensional quantum molecular chain model, where a negative diffusion coefficient is observed despite the system satisfying the H-theorem. The occurrence of negative diffusion constant is attributed to the effect of phase mixing process, a characteristic result of the system's one-dimensionality.
Article
Multidisciplinary Sciences
Roberto Passante, Lucia Rizzuto
Summary: This paper examines effective Hamiltonians describing the interaction of the quantum electromagnetic field with atoms or molecules, focusing on off-energy-shell processes. The calculations of radiative energy shifts, dispersion, and Casimir-Polder interactions are simplified, providing clear physical insights. Different expressions of the effective Hamiltonian, depending on field states, have well-defined ranges of validity and possible applications.
Article
Chemistry, Multidisciplinary
Caterina Braggio, Roberto Calabrese, Giovanni Carugno, Giuseppe Fiscelli, Marco Guarise, Alen Khanbekyan, Antonio Noto, Roberto Passante, Lucia Rizzuto, Giuseppe Ruoso, Luca Tomassetti
Summary: In this paper, we investigate the spectroscopy of dilute alkali atoms in a solid matrix of inert gases at cryogenic temperatures. The research is relevant for matrix isolation spectroscopy and the detection of cosmological axions. Theoretical analysis and experimental measurements of spectral linewidths are conducted to optimize the detection scheme.
APPLIED SCIENCES-BASEL
(2022)
Review
Physics, Multidisciplinary
Roberto Passante, Lucia Rizzuto
Summary: This review examines the spatial field correlations of the massless scalar field and the electromagnetic field in both stationary and nonstationary conditions, and demonstrates their effects on two- and many-body dispersion interactions. The nonlocal behavior of field correlations for noninteracting fields is analyzed, along with their relation to two-body dispersion interactions. The modification of field correlations by the presence of a field source, such as an atom or polarizable body, is explored in both stationary and dynamical conditions. The study highlights the nonlocal features of field correlations and their role in van der Waals and Casimir-Polder interactions between atoms.
Article
Astronomy & Astrophysics
Federico Montalbano, Federico Armata, Lucia Rizzuto, Roberto Passante
Summary: This paper investigates a system of two cavities separated by a movable reflecting boundary of finite mass. The boundary is bounded to its equilibrium position by a harmonic potential, resulting in an effective mirror-field interaction and an effective interaction between the field modes mediated by the movable boundary. Two massless scalar fields are defined in each cavity. The study focuses on the second-order interacting ground state of the system, which includes virtual excitations of both mirror's degrees of freedom and scalar fields. The correlation functions between field observables in the two cavities are analyzed, revealing an anticorrelation between the squared scalar fields in the interacting ground state. The distance from the mirror's average position, its mass, and oscillation angular frequency are found to affect the correlation. The communication between the separated half-spaces mediated by the mirror's position fluctuations is discussed, along with the observability of this phenomenon using two- or many-body dispersion interactions between polarizable bodies. The impact of introducing a cutoff frequency to regularize frequency integrations and the case of a real conductor are also considered.
Article
Physics, Multidisciplinary
Tatsuhiko N. Ikeda, Satoshi Tanaka, Yosuke Kayanuma
Summary: This study develops the Landau-Zener transfer matrix theory for the instantaneous Floquet states (IFSs) of quantum systems driven by a strong pulse laser, showing unexpectedly good quantitative agreement in two-level quantum systems. The approach allows for a qualitative understanding of the probability's peculiar behaviors as quantum path interference between IFSs, and remains useful for shorter pulses down to two-cycle ones in the present model.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Optics
Yujin Dunham, Kazuki Kanki, Savannah Garmon, Satoshi Tanaka, Gonzalo Ordonez
Summary: The study investigates spin-dependent charge-transfer decay in alkali atom-doped polyacetylene through complex spectral analysis, revealing the influence of spin-orbit interaction on single-spin Zeeman splitting. By deriving a non-Hermitian effective Hamiltonian from the total system Hermitian Hamiltonian using the Brillouin-Wigner-Feshbach projection method, the microscopic spin-dependent dissipation effect is incorporated in the energy-dependent self-energy. The research uncovers two types of exceptional point singularities attributed to dynamical and chiral symmetry breaking, demonstrating that coherent single-spin electron resonance spectrum reflects the complex eigenenergy spectrum of the system.
Article
Optics
Marta Reina, Michelangelo Domina, Alessandro Ferreri, Giuseppe Fiscelli, Antonio Noto, Roberto Passante, Lucia Rizzuto
Summary: The study explores the cooperative spontaneous emission of two identical atoms interacting with the electromagnetic field in the presence of an oscillating mirror, analyzing the changes in radiation spectrum and transition rate. The results demonstrate that the presence of the oscillating mirror can modulate the decay rate of the atomic system and suggest further possibilities for controlling and manipulating radiative processes.
Article
Optics
Giuseppe Fiscelli, Lucia Rizzuto, Roberto Passante
Article
Optics
Giuseppe Fiscelli, Roberta Palacino, Roberto Passante, Lucia Rizzuto, Salvatore Spagnolo, Wenting Zhou
Article
Physics, Multidisciplinary
Satoshi Tanaka, Kazuki Kanki
