An improved higher-order moving particle semi-implicit method for simulations of two-dimensional hydroelastic slamming

2021 ◽  
Vol 33 (3) ◽  
pp. 037104
Author(s):  
Ruosi Zha ◽  
Heather Peng ◽  
Wei Qiu
Keyword(s):  
Higher Order ◽  
Implicit Method ◽  
Two Dimensional ◽  
Moving Particle

Two-Dimensional Local Deep-Level Transient Spectroscopy Imaging Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy

2016 ◽  
Author(s):  
N. Chinone ◽  
Y. Cho ◽  
R. Kosugi ◽  
Y. Tanaka ◽  
S. Harada ◽  
...  
Keyword(s):  
Deep Level Transient Spectroscopy ◽  
Deep Level ◽  
Higher Order ◽  
Trap Density ◽  
New Technique ◽  
Two Dimensional ◽  
Nonlinear Dielectric ◽  
Annealing Conditions ◽  
Transient Spectroscopy ◽  
A New Technique

Abstract A new technique for local deep level transient spectroscopy (DLTS) imaging using super-higher-order scanning nonlinear dielectric microscopy is proposed. Using this technique. SiCVSiC structure samples with different post oxidation annealing conditions were measured. We observed that the local DLTS signal decreases with post oxidation annealing (POA), which agrees with the well-known phenomena that POA reduces trap density. Furthermore, obtained local DLTS images had dark and bright areas, which is considered to show the trap distribution at/near SiCVSiC interface.

Plasmonic excitations in two-dimensional materials: effects of structural symmetry and material anisotropy

2022 ◽  
Author(s):  
Linhui Ding ◽  
Ningning Wang ◽  
Leiming Chen ◽  
Kui Han ◽  
Xiaopeng Shen ◽  
...  
Keyword(s):  
Noble Metals ◽  
Higher Order ◽  
Two Dimensional ◽  
Material Anisotropy ◽  
Structural Symmetry ◽  
Dipole Resonance ◽  
Higher Order Modes ◽  
Resonance Frequencies ◽  
Two Dimensional Materials ◽  
Two Factors

Abstract Plasmonics in two-dimensional materials, an emerging direction of nano-optics, has attracted great attention recently, which exhibits unique properties than that in noble metals. Extending its advanced features by different manipulations is very beneficial for its promotion. In this paper, we study plasmonic excitations in graphene and black phosphorus (BP) nanostructures, where the effects of structural symmetry and material anisotropy are discussed. We show that the two factors are crucial to mode excitations, e.g. the extinction can be dominated by higher order modes rather than dipole resonance. The behavior occurs only in the direction hosting larger resonance frequencies, e.g. armchair (AC) direction of BP and shorter side of graphene rectangles. In BP rectangles along AC direction, the two factors are competing, and thus can be applied cooperatively to tune plasmonic resonance, from dipole to higher order excitations. Besides, the manipulation can also be achieved by designing BP square rings, in which the interaction between outer and inner edges show great impact on mode excitations. Our studies further promote the understanding of plasmonics in two-dimensional materials, and will pave the way for particular plasmonic applications.

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