Article
Chemistry, Physical
Yong Liu, Chi Pang, Hiroshi Amekura, Thomas Schumann, Peng Liu, Zhixian Wei, Haocheng Liu, Rang Li
Summary: By designing the structure of metal nanoparticles, the manipulation of surface plasmonics can be achieved, resulting in enhanced absorption and fine-tuning of localized surface plasmon resonance band. This offers potential for improving the performance of nonlinear photonic devices.
APPLIED SURFACE SCIENCE
(2023)
Article
Optics
Bin Guo, Zhongshuai Zhang, Yanyan Huo, Shuyun Wang, Tingyin Ning
Summary: The modulation of epsilon-near-zero (ENZ) wavelength and enhanced third-order nonlinearity in indium tin oxide (ITO)/Au multilayer films is reported. Samples of ITO(40 nm)/[Au(x)/ITO(40 nm)](4) with different thicknesses of ultrathin Au films were prepared using magnetron sputtering. The ENZ wavelength was both theoretically calculated and experimentally confirmed. The results showed that the ITO/Au multilayer films exhibited large nonlinear refractive index and nonlinear absorption coefficient, making them promising for advanced all-optical devices.
CHINESE OPTICS LETTERS
(2023)
Article
Optics
Koushik Mondal, Subrata Biswas, Tara Singha, Sudip Kumar Pal, Prasanta K. Datta, Sujit Kumar Ghosh, Pathik Kumbhakar
Summary: Novel local field-assisted nonlinear optical effects were observed in triangular-shaped core-shell Ag-Au nanoparticles, exhibiting superior optical switching performance and optical limiting thresholds under specific pump wavelengths, indicating the potential of these nanoparticles in advanced optoelectronic applications.
Article
Engineering, Electrical & Electronic
Rajbala Solanki
Summary: This study proposes a novel wideband dipole antenna that operates in three modes and has a wide bandwidth. The third and fifth-order modes are compressed using reflectors and combined with the first-order mode to achieve the wideband operation. Experimental results validate the accuracy of the design concept and computational results.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Chemistry, Multidisciplinary
Yali Guo, Anzhou Xu, Juan Hou, Qingcui Liu, Hailong Li, Xuhong Guo
Summary: The study demonstrates that Ag-Au core-shell triangular nanoprisms fabricated by the galvanic-free replacement method are effective co-catalysts for the hydrogen evolution reaction. The hydrogen production rate of Ag@Au TNPs/P-CN is significantly higher than that of P-CN, making it the most competitive material for water splitting. The formed Schottky junction helps trap hot electrons and effectively inhibits the recombination of photogenerated electron-hole pairs.
Article
Optics
Renlong Zhou, Sa Yang, Qiawu Lin, Liangpo Tang, Yong Li, Guozheng Nie
Summary: Borophene, a novel 2D material, shows significant influence in nanoscale materials and devices through its electric dipole transient and nonlinear effects. The scattering properties, lifetime evolution, and plasmonic modes can be controlled by tuning the carrier relaxation time, effective electron mass, and free carrier density, making it an excellent platform for tunable plasmonic-photonic devices.
Article
Engineering, Environmental
Fuzhi Shen, Caiyi Zhang, Zhiheng Cai, Zhili Qiu, Ying Wang, Zhao Liu, Ming Guan, Fenglei Gao
Summary: In this study, a new target-induced self-assembled structure was designed for label-free Raman detection and fluorescence imaging of telomerase in cancer cells, as well as enhanced photothermal and photodynamic treatment of tumors. The strategy exhibited great sensitivity and selectivity for telomerase and was successfully employed for in situ imaging of telomerase in different kinds of cells and for combination therapy of tumors.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Analytical
Linnan Jia, Jiayang Wu, Yuning Zhang, Yang Qu, Baohua Jia, David J. Moss
Summary: This paper reviews the recent advances in research on third-order optical nonlinearities of two-dimensional (2D) materials in optical communication systems. The material properties and characterization methods of 2D materials are discussed, along with a summary of the measured n(2) values in the telecommunications band. The current challenges and future perspectives are also discussed.
Article
Instruments & Instrumentation
Zhongshuai Zhang, Bin Guo, Yanyan Huo, Shuyun Wang, Tingyin Ning
Summary: We investigated the third-order optical nonlinearity in indium tin oxide (ITO) films with different grain orientations grown using magnetron sputtering technique. The nonlinear refractive index n2 and nonlinear absorption coefficient beta were measured by the Z-scan method and were found to be significantly influenced by grain orientations. Specifically, ITO films with near pure (222) crystalline orientation prepared at 90 W exhibited the highest values of n2 and beta compared to polycrystalline films prepared at different powers. The results indicate that the third-order optical nonlinearity in ITO films is governed by the crystalline orientation (222), providing guidance for fabricating ITO films with optimized third-order optical nonlinearity for high-performance nonlinear optical devices.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Astrini Pradyasti, Jae Hwan Jeong, Sang Heon Kim, Mun Ho Kim
Summary: A facile method for preparing porous triangular Au-Ag-Ag2S bimetal-semiconductor hybrid nanostructures was developed by selectively etching Ag and controlled deposition of Au. These hybrid nanostructures exhibited enhanced catalytic performance and high photothermal conversion properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Bo Wang, Guoquan Ren, Zhining Li, Qingzhu Li
Summary: An improved method based on the second order improved central difference method is proposed to enhance the stability of the third-order magnetic gradient tensor data affected by noise. The new method shows better stability in positioning results compared to the traditional method under noisy conditions.
Article
Mathematics, Interdisciplinary Applications
Xudong Liu, Xiaojun Tong, Zhu Wang, Miao Zhang
Summary: This paper presents a third-order nonlinear digital filter with chaotic behavior, and proposes S-box generation algorithm and block cipher algorithm based on the filter, which show excellent cryptographic performances. Experiments demonstrate the competitiveness of the proposed algorithms with some of the most advanced ones.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Materials Science, Multidisciplinary
P. Divya, R. Annie Sujatha, N. Angeline Little Flower, G. Vinitha, K. Mani Rahulan
Summary: In this study, Cr3+ doped PbWO4 nanoparticles with different concentrations of Cr3+ were synthesized using a chemical method. The structural, morphological, and optical properties of the nanoparticles were characterized using various techniques. The results showed that the optical properties of the nanoparticles were altered by the Cr3+ doping, indicating their potential applications in optical devices.
Article
Optics
Tingyin Ning, Xiuru Yu, Luying Yin, Qingmeng Zhang
Summary: The optical nonlinearity in glass and glass-ceramic containing fermelectric nanocrystals was investigated, showing potential applications for all-optical photonic devices. The values of the third-order and fifth-order nonlinear refractive indices were determined, along with the three-photon absorption coefficient values for the samples.
Article
Materials Science, Multidisciplinary
Zhen Yang, Haonan Hu, Qiuli Li, Zheng Zhang, Lei Niu, Jian Wu, Tengxiu Wei, Yuanhuan Sun, Yiming Fang, Xunsi Wang, Zhiyong Yang, Jinfeng Zhou, Rongping Wang
Summary: By preparing GexSe10Te90-x glasses with varying Te contents and measuring their properties, it was found that the glasses exhibit different optical characteristics depending on the composition, with the nonlinear optical refractive index showing significant variations. These Te-based glasses show potential for applications as mid- and far-infrared nonlinear optical devices.
Article
Chemistry, Physical
Zixuan Li, Ying Yu, Ziyu Chen, Tianran Liu, Zhang-Kai Zhou, Jun-Bo Han, Juntao Li, Chongjun Jin, Xuehua Wang
JOURNAL OF PHYSICAL CHEMISTRY C
(2013)
Article
Chemistry, Multidisciplinary
Zixuan Li, Andrei Dolocan, Oscar Morales-Collazo, Jerzy T. Sadowski, Hugo Celio, Robert Chrostowski, Joan F. Brennecke, Filippo Mangolini
ADVANCED MATERIALS INTERFACES
(2020)
Article
Chemistry, Physical
Filippo Mangolini, Zixuan Li, Matthew A. Marcus, Reinhard Schneider, Martin Dienwiebel
Summary: The analysis compared the carbon hybridization in amorphous carbon coatings using different spectroscopic techniques, revealing that destructive sample preparation can induce structural changes in the material. This finding is crucial for scientists in interpreting spectroscopic results from samples prepared for analytical purposes.
Review
Materials Science, Multidisciplinary
Z. Li, F. Mangolini
Summary: Despite significant progress in the field of IL-mediated lubrication, there are still many open questions regarding the effects of temperature, impurities, and surface roughness on the friction response and dynamic behaviors of nanoconfined ILs. Mechanistic understanding of the tribochemical reactivity of ILs is also lacking. Further research is needed to establish links between the IL structure, lubrication mechanism(s), and performance for the development of ILs with enhanced tribological properties.
EXPERIMENTAL MECHANICS
(2021)
Article
Chemistry, Physical
Zixuan Li, Hugo Celio, Andrei Dolocan, Nicolas Molina, Jude Kershaw, Oscar Morales-Collazo, Joan F. Brennecke, Filippo Mangolini
Summary: The lubricating performance of phosphonium phosphate ionic liquids depends on the relative concentration of bis(2-ethylhexyl)phosphate and bromide anions. Increasing the [P-6,P-6,P-6,P-14]Br-to-[P-6,P-6,P-6,P-14][DEHP] volume ratio can reduce friction and wear in steel/steel contacts due to the balance between corrosion inhibition and surface reactivity of the IL.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Zixuan Li, Oscar Morales-Collazo, Robert Chrostowski, Joan F. Brennecke, Filippo Mangolini
Summary: This study investigated the structural morphology of [P-6,P-6,P-6,P-14][DEHP] IL under different pressures using AFM experiments, revealing the formation of a lubricious, solid-like interfacial layer at higher pressures, with growth rate increasing with pressure and temperature. The structural variation was proposed to be derived from the well-ordered layering of polar groups of ions separated by apolar tails. These findings provide new insights into the pressure-dependent lubrication mechanisms of ILs.
Article
Chemistry, Physical
Robert Chrostowski, Zixuan Li, James Smith, Filippo Mangolini
Summary: Surface topography affects various surface properties. A Fourier filtering algorithm combined with a novel method is used to simulate AFM topography images with known Hurst exponent, and a Monte Carlo experiment is conducted to evaluate the accuracy of this approach.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zhichao Chen, Zixuan Li, Wei Zhao, Ray A. Matsumoto, Matthew W. Thompson, Oscar Morales-Collazo, Peter T. Cummings, Filippo Mangolini, Joan F. Brennecke
Summary: This study investigates the layered structures of four ionic liquids (ILs) on liquid-solid interfaces and reveals the orientation and arrangement of ions on the surface are influenced by interfacial ordering.
Article
Chemistry, Physical
Zixuan Li, Jennings Z. Ye, Jieming Yan, Nicolas Molina, Hsu-Ming Lien, Robert Chrostowksi, Cherno Jaye, Daniel A. Fischer, Jianliang Lin, Filippo Mangolini
Summary: Silicon-containing diamond-like carbon (DLC) coatings exhibit excellent tribological properties and resistance to biomolecule surface adsorption. This study provides insights into the influence of silicon on the structural and mechanical properties of DLC, showing a decrease in friction and an increase in surface hydroxyl groups with increasing silicon content.
Article
Chemistry, Multidisciplinary
Zixuan Li, Jerzy T. Sadowski, Andrei Dolocan, Filippo Mangolini
Summary: Functional oxides have been extensively studied for their potential applications in various fields. This study presents a new technique called IL-o-SPL that utilizes room-temperature ionic liquids as the functionalizing material to mediate the electrochemistry at AFM tip/substrate contacts. The results show that IL-o-SPL allows for the fabrication of sub-100 nm oxide features with high patterning accuracy and tunability of the chemical state and morphology of the patterned structures. This technique opens up new possibilities for the development of advanced integrated devices with tailored properties at the nanoscale.
ADVANCED FUNCTIONAL MATERIALS
(2023)