Article
Materials Science, Characterization & Testing
Jiaxiang Wang, Mingxi Deng
Summary: This paper proposes an effective method for assessing the level of material damage using non-specular reflection of a bounded ultrasonic beam. By analyzing the acoustic field and defining a specific parameter called the specular reflection coefficient, the paper establishes a finite-element model to observe the response of the defined coefficient to incident angle and material damage level. The simulations and experiments confirm the feasibility of using non-specular reflection as a means to evaluate material damage accurately.
NDT & E INTERNATIONAL
(2023)
Article
Physics, Multidisciplinary
Zhi-Wei Cui, Shen-Yan Guo, Yuan-Fei Hui, Ju Wang, Yi-Ping Han
Summary: This study investigates the local dynamical characteristics of Bessel beams reflected from an air-glass interface near the Brewster angle using analytical and numerical methods. Explicit expressions for the field components of the reflected Bessel beams are derived under paraxial approximation. Numerical simulations show that properties of energy, momentum, spin, and orbital angular momentum of Bessel beams near Brewster angle incidence are significantly influenced by their topological charge, half-cone angle, and polarization state.
Article
Energy & Fuels
M. D. Lobato, F. Gamez, J. M. Pedrosa
Summary: This study provides a comprehensive experimental approach and structural analysis to reveal a two-step aggregation process of asphaltene at interfaces, showing that different aggregation states result in different intramolecular cohesion forces and interaction patterns.
Article
Chemistry, Physical
R. Flores-Sanchez, M. Bigorra-Mir, F. Gamez, T. Lopes-Costa, P. G. Argudo, M. T. Martin-Romero, L. Camacho, J. M. Pedrosa
Summary: The mechanical and morphological effects of octadecylamine monolayers on aspirin adsorption were investigated using Langmuir isotherms measurements and Brewster angle microscopy. Aspirin caused a significant expansion of the corresponding isotherms, and the mechanical stability of the films showed a concentration-dependent behavior due to the delicate balance between the solubility of the amine and the monolayer stabilization induced by ion-pairs. The incorporation of aspirin into the interface was confirmed by UV-vis reflection spectroscopy. The feasibility of using aliphatic amines for drug delivery of anionic species was also discussed.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Cesar Augusto Romero-Ramos, Jesus Manzanares-Martinez, Betsabe Manzanares-Martinez, Diego Soto-Puebla, Gerardo Alejandro Morales-Morales, Carlos Eduardo Ruiz-Rosales
Summary: The study focuses on the existence of Brewster angle for thermal diffusivity waves, showing that it only occurs for specific combinations of diffusivity and thermal conductivity of the incidence and transmission media.
RESULTS IN PHYSICS
(2021)
Article
Environmental Sciences
Xiao Li, Zhongqiu Sun, Shan Lu, Kenji Omasa
Summary: Understanding the optical properties of leaves is crucial for studying the relationships between leaf traits and remote sensing signals. The PROSPECULAR model combines PROSPECT with a specular function to simulate spectral and multi-angular BRF and retrieve leaf biochemical and surface structural parameters. The model shows promising results in simulating multi-angular BRF and accurately retrieving a unified set of biochemical parameters for different leaf samples.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Engineering, Multidisciplinary
Spyridon Koutsoumpos, Panagiotis Giannios, Konstantinos Moutzouris
Summary: This study proposes a simple method to determine the complex optical constants of attenuating samples by measuring two characteristic angles of light at the interface. These two angles, namely the critical angle of attenuated total reflection and the pseudo-Brewster angle, can be accurately measured using common laser refractometers.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Muzamil Shah, Muhammad Sajid
Summary: We investigate the photonic spin Hall effect (PSHE) in a magnetic topological ultra-thin film (MTF) in the terahertz regime, considering in-plane and transverse effects. Our findings demonstrate that both PSHE effects are quantized due to the quantization of the Landau levels (LLs) of the magneto-optical (MO) conductivity. The interaction between hybridization and Zeeman energy leads to topological and normal insulating phases, and the PSHE can be greatly enhanced in MTF.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Engineering, Electrical & Electronic
Chris J. Deacon, Ben A. Witvliet, Simon N. Steendam, Cathryn N. Mitchell
Summary: This study investigates the enhanced ionization phenomenon in sporadic-E clouds in the E-region of the ionosphere, focusing on the reflection of radio waves. An experimental system has been developed to accurately measure and analyze the oblique reflection of 50 MHz radio waves. The results show evidence of magneto-ionic double refraction and the importance of environmental noise reduction for optimizing system sensitivity.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Paul A. Morton, Chao Xiang, Jacob B. Khurgin, Christopher D. Morton, Minh Tran, Jon Peters, Joel Guo, Michael J. Morton, John E. Bowers
Summary: This paper introduces a new Integrated Coherent Tunable Laser (ICTL) that offers ultra-wideband wavelength tuning and ultra-low noise performance. The ICTL is designed to be cost-effective and reliable through its utilization of III-V material and a CMOS foundry based Silicon Photonics platform. The ICTL's exceptional laser reflector performance, extended laser cavity length, and low linewidth and phase noise enable highly-coherent output. The ICTL has achieved record integrated laser performance and shows great potential for next-generation applications such as WDM transmission systems, fiber-optic and medical-wearable sensing systems, and automotive LiDAR systems.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Keisuke Ozawa, Aika Taniguchi, Ryohei Ueda, Shunsuke Teranishi, Akari Watanabe, Junichi Inoue, Kenji Kintaka, Shogo Ura
Summary: A guided-mode-resonance device was designed and fabricated for narrow-band retroreflection and waveguide input coupling at 1550 nm wavelength. The device consists of a focusing grating coupler integrated in a waveguide cavity resonator constructed by a pair of distributed Bragg reflectors on a reflection substrate. The optimal length for maximum coupling was discussed both theoretically and experimentally.
IEEE PHOTONICS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Ye Qiaojue, Wang Xianju, Dai Zhanhai
Summary: Gaussian beams have good directivity and wide applications compared to ordinary light sources. Using COMSOL multiphysics simulation software, the study of Gaussian beam propagation at Brewster angle shows that under different polarizations, the refracted beam remains a Gaussian beam with varying characteristics for the reflected beam.
LASER & OPTOELECTRONICS PROGRESS
(2021)
Article
Computer Science, Information Systems
Jinwen Lu, Yanjin Zhang, Hua Yan, Lei Zhang, Hongcheng Yin
Summary: In this article, the compression and reconstruction of target-scattering characteristics data in radar applications are studied. A multimanifold global scattering center (GSC) model is proposed, which can effectively compress wide-angle scattering data while ensuring a suitable reconstruction accuracy.
Article
Chemistry, Physical
Yoshinori Ohmasa, Ayano Chiba
Summary: Various streak patterns, such as specular reflection, double Bragg scattering, and diffuse + Bragg double scattering, are observed in small angle X-ray scattering from Highly Oriented Pyrolytic Graphite (HOPG), providing information on the mesoscopic structures of the sample.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2021)
Proceedings Paper
Nanoscience & Nanotechnology
R. Peyton, J. H. Martinez Valdiviezo, F. Videla, G. A. Torchia
Summary: This work introduces a new approach to fabricate a small footprint power splitter under the SiN platform using simplified coherent coupling. The sensitivity of design parameters is analyzed and discussed, leading to the development of very compact devices and improvement of integrated devices under the silicon nitride scheme.
NANOENGINEERING: FABRICATION, PROPERTIES, OPTICS, THIN FILMS, AND DEVICES XVIII
(2021)
Article
Environmental Sciences
M. Elnaggar, H. J. El-Khozondar, M. J. K. Bashir, W. A. Salah
Summary: This study aims to improve the solar hot water system in Gaza by determining the optimal tilt angle and incidence angle. Simulation results show that the useful energy gain of a solar thermal collector depends on the values of the tilt and incidence angles. The optimized angles can lead to higher energy efficiency and cost savings.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Mahshid Monavari, Shahin Homaeigohar, Rucha Medhekar, Qaisar Nawaz, Mehran Monavari, Kai Zheng, Aldo R. Boccaccini
Summary: In this study, a wound dressing composed of an alginate dialdehyde-gelatin (ADA-GEL) hydrogel incorporated by astaxanthin (ASX) and 70B borate bioactive glass (BBG) microparticles was developed through 3D printing. The composite hydrogel construct, stiffened by ASX and BBG particles, showed prolonged degradation and steady release of ASX, promoting cell adhesion, proliferation, and migration for faster wound healing.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Physics, Applied
Rasmus E. Jacobsen, Andrei V. Lavrinenko, Samel Arslanagic
Summary: Resonant elements are crucial for tailoring the radiation and scattering properties of devices like antennas and functional material platforms. In this study, a simple resonator composed of a dielectric cylinder and an impedance surface is shown to support multiple scattering states. By carefully adjusting its geometry, the resonator can enhance and direct scattering, or suppress scattering to create anapole states. A prototype of the resonator using water as the dielectric and a metallic tube with slits as the impedance surface has been tested at microwave frequencies, demonstrating its flexibility in achieving different scattering responses. This resonator design has significant implications for antenna design and functional material platforms in various frequency domains, including THz and optical frequencies using high-permittivity dielectrics and graphene/nano-particle surfaces.
APPLIED PHYSICS LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Shahin Homaeigohar, Xuan Liu, Mady Elbahri
Summary: Antiviral peptides and polysaccharides have great potential in preventing and treating emerging viral health problems. However, their poor water solubility and vulnerability to enzymatic degradation pose challenges. Nanocarriers that mimic viruses in terms of size, morphology, and function can effectively protect and deliver these compounds. This literature review presents the latest advances in antiviral nano-assemblies derived from natural sources, providing valuable insights into their applications in virus inactivation technologies.
JOURNAL OF CONTROLLED RELEASE
(2023)
Article
Optics
Larissa Vertchenko, Maxim Nikitin, Andrei Lavrinenko
Summary: The rise of photonics is driven by the need for miniaturization and faster communications, with the promise of high-speed and low-heat light circuits. Near-zero-index materials have attracted attention due to their unique electromagnetic properties, including electric field enhancement and extraordinary transmission in photonic waveguides. In such materials, light propagates with constant phase, showing promise for quantum photonics where information is preserved instead of degraded by the environment. However, realizing these properties remains challenging due to the specific geometries required by the effective medium theory.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2023)
Article
Polymer Science
Arturo E. Aguilar-Rabiela, Shahin Homaeigohar, Eduin I. Gonzalez-Castillo, Mirna L. Sanchez, Aldo R. Boccaccini
Summary: Composite biomaterials combining different biomaterials with unequal release rates have shown potential for drug delivery applications. In this study, mesoporous bioactive glass nanoparticles (MBGN) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) microspheres loaded with Astaxanthin (ASX) were synthesized and compared in terms of ASX release kinetic, ASX entrapment efficiency, and cell viability. The release behavior could be fine-tuned by adjusting the MBGN content in the composite particles, and the composite microspheres exhibited a more prolonged release profile with sustained cytocompatibility.
Article
Biotechnology & Applied Microbiology
Mariye Ahmadian, Saadi Hosseini, Atefeh Alipour, Mehdi Jahanfar, Naser Farrokhi, Shahin Homaeigohar, Hosein Shahsavarani
Summary: Tumor microenvironment plays a crucial role in drug response, and a 3D scaffold made from decellularized plant tissues is an ideal platform to mimic the microenvironment for testing novel anticancer drugs on liver cancer cells.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Construction & Building Technology
Mohammad Abdunnabi, Najmi Etiab, Yasser F. Nassar, Hala J. El-Khozondar, Rohit Khargotra
Summary: The energy consumption of Libyan common houses is estimated using simulation and other tools, aiming to achieve energy conservation by changing occupants' behaviors. Official data, measurements, and a survey are used to gather relevant information. The energy audit reveals that the total energy consumption is about 16,500 kWh/year, with electrical appliances accounting for 36%, interior lighting for 24%, water heating for 15%, and cooling/heating for 13%. The estimated specific energy consumption per floor area is 238.7 kWh/m^2. Implementing the proposed strategic plan can save over 6650 TWh of electrical energy, reduce CO2 emissions by 6.54 million tonnes per year, save 1.935 million tons of diesel fuel, and save $333.54 million as social cost of CO2.
ADVANCES IN BUILDING ENERGY RESEARCH
(2023)
Article
Physics, Applied
P. Franceschini, A. Tognazzi, G. Finco, L. Carletti, I. Alessandri, A. C. Cino, C. De Angelis, O. Takayama, R. Malureanu, A. V. Lavrinenko, D. de Ceglia
Summary: Subwavelength control of electromagnetic field distribution is a current challenge in photonics research. Diffractive metasurfaces with spatially extended resonant modes have recently gained interest for their versatility in shaping the electromagnetic field. In this study, we design a nonlocal metasurface with modes in the third operating spectral window of optical communications. The optical properties are investigated through experiments and simulations, revealing the magnetic and electric nature of the modes.
APPLIED PHYSICS LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Atena Galefi, Mohammad Nourany, Saadi Hosseini, Atefeh Alipour, Shahram Azari, Mehdi Jahanfar, Naser Farrokhi, Shahin Homaeigohar, Hosein Shahsavarani
Summary: The development of inexpensive, biocompatible natural scaffolds is crucial for obtaining FDA approvals for regenerative medicine. Plant-derived cellulose materials show high potential for bone tissue engineering (BTE), but low bioactivity limits their effectiveness. By surface-functionalizing cellulose scaffolds with grape seed proanthocyanidin (GSPE), the physicochemical and biological properties of the scaffold can be improved, making it a promising candidate for guided bone regeneration.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Optics
Larissa Vertchenko, Andrei Lavrinenko
Summary: Direct simulations demonstrate that materials with low refractive index have superior efficiency in third harmonic generation compared to epsilon-near-zero (ENZ) materials, and they naturally satisfy phase-matching conditions. Silicon-based photonic crystals can effectively generate third harmonic waves, providing a simplified approach to on-chip linear and nonlinear circuitry and reducing potential sources of losses by unifying the production chain with the same material, such as silicon.
LASER & PHOTONICS REVIEWS
(2023)
Article
Nanoscience & Nanotechnology
Leonid Yu. Beliaev, Sungyeong Kim, Bjorn Funch Schroder Nielsen, Mads Vejlgaard Evensen, Ada-Ioana Bunea, Radu Malureanu, Lars Renei Lindvold, Osamu Takayama, Peter E. Andersen, Andrei V. Lavrinenko
Summary: Optical sensors are efficient tools used to detect various types of analytes. High-contrast gratings (HCGs) are nanoscale devices that exhibit sharp optical resonances and can be used to detect biomarkers. Among different HCG structures, pedestal HCGs have higher bulk refractive index sensitivity, while half-buried HCGs have higher surface sensitivity. Both types of HCGs were used for optical biosensing of the cardiac biomarker myoglobin, and the half-buried HCGs showed slightly lower limit of detection compared to pedestal HCGs.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Shahin Homaeigohar, Mhd Adel Assad, Amir Hossein Azari, Farnaz Ghorbani, Chloe Rodgers, Matthew J. Dalby, Kai Zheng, Rongyao Xu, Mady Elbahri, Aldo. R. Boccaccini
Summary: The biohybrid nanofibers developed in this study can stimulate the adhesion and proliferation of fibroblast and endothelial cells, showing potential for promoting wound healing and antibacterial activity.
ACS APPLIED BIO MATERIALS
(2023)
Correction
Chemistry, Multidisciplinary
Najmeh Ahmadpour, Mohammad Hossein Sayadi, Shahin Homaeigohar
Article
Materials Science, Paper & Wood
Rezvaneh Banaeyan, Mohammad Nourany, Saadi Hosseini, Atena Galefi, Atefeh Alipour, Mehdi Jahanfar, Peng Yuan Wang, Shahin Homaeigohar, Hosein Shahsavarani
Summary: This study investigated a low-cost, sustainable cellulosic scaffold made from decellularized watermelon rind. Surface treatment with polydopamine enhanced the scaffold's surface roughness and protein adhesion, and supported the osteogenic differentiation of human mesenchymal stem cells.