Zero-Field Intensity Oscillations Following Impulsive Excitation of Hydrogen

We investigate modes excitation with input field of different positions in three-mode photonic crystal waveguides. The three-mode photonic crystal waveguides is formed by removing three rows rods in 2D photonic crystals. The input field with different positions can excite different modes due to the field intensity distribution of modes. When the input field locates at the position of the zero field intensity of the waveguide mode, the mode can not be excited. The finite-difference time-domain method is used to obtain the excited field distributions.

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Modes Excitation in Five-Mode Photonic Crystal Waveguides of Triangular Lattice

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.531-532.196 ◽

2012 ◽

Vol 531-532 ◽

pp. 196-199

Author(s):

Xiao Yan Shi ◽

Wu Yang ◽

Hua Yang ◽

Xiu Ze Wang

Keyword(s):

Photonic Crystal ◽

Field Intensity ◽

Intensity Distribution ◽

Triangular Lattice ◽

Waveguide Mode ◽

Zero Field ◽

Photonic Crystal Waveguides ◽

Input Field ◽

Difference Time ◽

Field Intensity Distribution

We study modes excitation with input field of different positions in five-mode photonic crystal waveguides of triangular lattice. The five-mode photonic crystal waveguides is formed by removing five rows rods in 2D photonic crystals of a triangular lattice of dielectric rods in air. The 0th mode, the 1st mode and the 2nd modes are selectively excited. The input field with different positions can excite different modes due to the field intensity distribution of modes. When the input field locates at the position of the zero field intensity of the waveguide mode, the mode can not be excited. The superposition of different modes can leads to different field intensity distribution. The finite-difference time-domain method is used to obtain the excited field distributions.

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Effect of thermal annealing on grain boundary chemistry of polycrystalline TiBa2Ca2Cu3Oy films

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100172577 ◽

1994 ◽

Vol 52 ◽

pp. 968-969

Author(s):

Z. L. Wang ◽

C. L. Briant ◽

J. DeLuca ◽

A. Goyal ◽

D. M. Kroeger ◽

...

Keyword(s):

Grain Boundary ◽

Weak Link ◽

Zero Field ◽

Stabilized Zirconia ◽

Local Texture ◽

Transmission Electron ◽

Axis Alignment ◽

Boundary Chemistry ◽

Small Misorientation ◽

Misorientation Angles

Recent studies have shown that spray-pyrolyzed films of the Tl-1223 compound (TlxBa2Ca2Cu3Oy, with 0.7 < × < 0.95) on polycrystalline yttrium stabilized zirconia substrates can be prepared which have critical current density Jc near 105 A/cm2 at 77 K, in zero field. The films are polycrystalline, have excellent c-axis alignment, and show little evidence of weak-link behavior. Transmission electron microscopy (TEM) studies have shown that most grain boundaries have small misorientation angles. It has been found that the films have a nigh degree of local texture indicative of colonies of similarly oriented grains. It is believed that inter-colony conduction is enhanced by a percolative network of small angle boundaries at colony interfaces. It has also been found that Jc is increased by a factor of 4 - 5 after the films were annealed at 600 °C in oxygen. This study is thus carried out to determine the effect on grain boundary chemistry of the heat treatment.

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Correlating the axial Zero Field Splitting with the slow magnetic relaxation in GdIII SIMs

Chemical Communications ◽

10.1039/d0cc07474h ◽

2021 ◽

Author(s):

Júlia Mayans ◽

Albert Escuer

Keyword(s):

Magnetic Relaxation ◽

Zero Field ◽

Zero Field Splitting ◽

Field Splitting ◽

Slow Magnetic Relaxation

A possible relation between the value of the axial Zero Field Splitting and the occurrence of field-induced slow magnetic relaxation has been established for a new gadolinium(iii) compound.

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