Correction
Materials Science, Multidisciplinary
Saikat Banerjee, Wei Zhu, Shi-Zeng Lin
NPJ QUANTUM MATERIALS
(2023)
Article
Quantum Science & Technology
C. Martinez-Strasser, M. A. J. Herrera, A. Garcia-Etxarri, G. Palumbo, F. K. Kunst, D. Bercioux
Summary: The spectral properties of two possible non-Hermitian diamond chains with a flat band in the band structure, namely dimerized diamond chains, are investigated in this study. The systems are characterized using biorthogonal polarization and quantum metric, and the presence of non-Hermitian skin effect is observed. The study also shows the equivalence between the two non-Hermitian diamond chains and the non-Hermitian Su-Schrieffer-Heeger chains after a unitary rotation.
ADVANCED QUANTUM TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
N. Dontschuk, L. V. H. Rodgers, J. P. Chou, D. A. Evans, K. M. O'Donnell, H. J. Johnson, A. Tadich, A. K. Schenk, A. Gali, N. P. de Leon, A. Stacey
Summary: Identifying the surface chemistry of diamond materials is crucial for device applications, especially in quantum sensors. Oxygen-related termination species are commonly used due to their abundance, stability, and compatibility with nitrogen vacancy centres. However, it is challenging to accurately identify and quantify the different groups on diamond surfaces. This study combines x-ray absorption and photoelectron spectroscopies to quantitatively identify the coverage of carbonyl functional groups on the {100} diamond surface, revealing unexpected complexities in the spectroscopy of oxygen terminated diamond surfaces.
MATERIALS FOR QUANTUM TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yanyan Zhao, Jijun Zhao, Yu Guo, Si Zhou
Summary: This study assembles chiral superatomic crystals with tunable symmetries and electronic characteristics, and demonstrates unique spin textures and spin Hall effect in these chiral monolayers. The results provide a novel method for accessing chirality-driven quantum effects.
NPJ QUANTUM MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
C. T. Lennon, Y. Shu, J. C. Brennan, D. K. Namburi, V. Varghese, D. T. Hemakumara, L. A. Longchar, S. Srinath, R. H. Hadfield
Summary: This study reports the growth of highly uniform superconducting NbN thin films using plasma-enhanced atomic layer deposition (PEALD) with radio frequency substrate biasing. The films exhibit properties close to that of bulk materials and low suppression effects. PEALD could be a pivotal technique for large-scale fabrication of integrated quantum photonic devices.
MATERIALS FOR QUANTUM TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
A. J. Brash, J. Iles-Smith
Summary: This study addresses the temperature-related issues in solid-state emitters and demonstrates that coupling to a photonic nanocavity can greatly enhance the photon coherence at elevated temperatures (up to 30K).
MATERIALS FOR QUANTUM TECHNOLOGY
(2023)
Article
Mathematics, Applied
R. M. Khakimov, M. T. Makhammadaliev, F. H. Haydarov
Summary: This paper considers a Hard-Core model with two spin values on Cayley trees. The concept of alternative Gibbs measure is introduced and translation invariance conditions for alternative Gibbs measures are found. Additionally, the existence of alternative Gibbs measures that are not translation-invariant is shown. Furthermore, the free energy of the model is studied.
INFINITE DIMENSIONAL ANALYSIS QUANTUM PROBABILITY AND RELATED TOPICS
(2023)
Article
Engineering, Electrical & Electronic
Ayesha Younas, Tahir Iqbal, Abdullah Almohammedi, Sumera Afsheen
Summary: This study reports the simple synthesis of pure and La-doped WO3 nanoparticles for the degradation of methylene blue dye. Various techniques were used to evaluate the prepared samples, and it was found that La doping improved the catalytic activity and reduced the particle size. In the presence of visible light, 4% La-doped WO3 nanoparticles showed the best degradation performance for methylene blue.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Yongmi Zhang, Yanhong Li, Changyu Zhu, Xingxing Wang, Kai Zhang, Junhong Liu, Guojing Lu, Chenyu Zhao, Jun Ye
Summary: With advancements in technology, large-scale energy storage has become feasible, with optical fiber technologies being the preferred choice. Improvement in China's electricity market mechanism is expected to facilitate the development of energy storage and create market opportunities. This study explores modeling and value application to demonstrate the potential of a flexible market mechanism and multipurpose applications in driving the growth of the energy storage economy.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
P. Mandal
Summary: A plasmonic switchable metasurface has been studied for multiband reflection/absorption control, polarization rotation, and switching characteristics. The metasurface, made of metal-VO2-metal layer pair, can be dynamically controlled using thermal excitation to achieve tunable resonant reflection dips and polarization rotation.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Mehtab Singh, Ahmad Atieh, Moustafa H. Aly, Somia A. Abd El-Mottaleb
Summary: In this paper, the authors investigated the performance of three different modulation formats in an underwater optical wireless communication system. The results showed that the non return to zero modulation scheme achieved the best performance, while the carrier compressed return to zero modulation scheme performed the worst.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Mohd Farman Ali, Rajarshi Bhattacharya
Summary: In this paper, a tunable high-gain graphene-based terahertz (THz) patch antenna is implemented and numerically studied. The antenna achieves improved gain and radiation efficiency by utilizing a double split ring resonator-shaped frequency selective surface (FSS). Additionally, different sizes of patch antenna sub-arrays are explored for implementing THz massive multi-input-multi-output (MIMO) applications. The antenna response can be tuned by applying an electrostatics DC bias.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Khalid K. Ali, M. S. Mehanna, Mohamed S. Mohamed
Summary: The article aims to present the optical soliton solutions of the nonlinear Schrodinger equation, which have important applications in optical fiber and photonic crystal fiber. Two powerful analytical techniques, the Sardar-Subequation method and the New method (G'/kG'+G+r)-expansion method, are employed to provide diverse solutions. The majority of the results are depicted graphically.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Muhammad Idrees, Zareen A. Khan
Summary: This article presents a method for finding the precise position of an atom by manipulating the transmission spectrum of a probe field using phase-sensitive operations. By controlling the relative phase between two standing waves, the number and position of localized peaks in the transmission spectrum can be regulated. The shift of these localized peaks is greatly influenced by the direction of the wave vector in the standing wave fields.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Aavishkar Katti, Milind Pande
Summary: The temporal behavior and formation characteristics of photorefractive effect in nonlinear optical media with simultaneous linear and quadratic electro-optic effect are investigated. The time dependent wave equation of light beams in these novel photorefractive materials is derived based on the derived space charge field. The evolution of soliton width and nonlinearity with time is studied, and it is found that only steady state solitons are formed due to the absence of quasi steady state behavior in dark soliton formation. The interplay between linear and quadratic electro-optic effect affects the formation of dark solitons. Furthermore, the effect of crystal temperature on the formation of dark solitons is studied, and it is found that temperature modification results in changes in dark irradiance and dielectric constant, which significantly impact the time evolution of dark solitons.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Vivek Sharma, Sandeep Kumar, Niti Kant, Vishal Thakur
Summary: This study utilizes a combination of laser pulse and external magnetic field in under-dense plasma to achieve efficient energy acceleration of electrons.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
K. Vasu Babu, Priyanka Das, Sudipta Das, Abdulkarem H. M. Almawgani, Tanvir Islam, Adam R. H. Alhawari
Summary: This article proposes a compact metamaterial absorber for terahertz applications. With a broad operating band from 5.63 to 5.88 THz, the absorber exhibits more than 80% absorption. The absorber features tunability and a low profile design, leveraging concentric square ring-based graphene patches for metal-free absorption mechanism. Rigorous analysis using an Equivalent Circuit Model confirms the high absorption performance of the absorber at 5.75 THz.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Guan Yang, Chengyuan Hu, Meize Chen, Xianchao Yang, Yuhuai Liu, Xiaohong Sun, Jianquan Yao
Summary: A localized surface plasmon resonance (LSPR) refractive index (RI) sensor based on exposed-core micro-structured optical fiber (EC-MOF) with a multilayered nanoshell (MNS) is designed. The sensor can simultaneously detect three different targets and has strong sensitivity and optimized sensing characteristics.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
S. Eswaramoorthy, N. Ayyanar, G. Thavasi Raja, Fahad A. Alzahrani
Summary: This article presents the design of a bend resistant segmented cladding fiber with a high index circular multi trench in the core region. The fiber is designed to achieve single mode condition and large mode area. The proposed fiber can operate in single mode condition with a large effective mode area, making it crucial for high power fiber lasers, fiber amplifiers, and high power delivery applications.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Haoran Jiang, Tao Shen, Yue Feng, Chi Liu, Xin Liu
Summary: A surface plasmon resonance (SPR) refractive index (RI) sensor based on a D-shaped photonic crystal fiber (PCF) was designed to achieve high sensitivity in the near-infrared (NIR) region. The performance of the sensor was optimized by adjusting its structural parameters and adding a TiO2 film to improve adhesion. The results showed that the TiO2 film enhanced confinement loss, improved resonance wavelength fitting linearity and position, while reducing sensitivity. The sensor has broad application prospects in various fields.
OPTICAL AND QUANTUM ELECTRONICS
(2023)