Effect of plasma absorption on dust lattice waves in hexagonal dust crystals

2018 ◽  
Vol 20 (4) ◽  
pp. 045001 ◽  
Author(s):  
Kerong HE ◽  
Hui CHEN ◽  
Sanqiu LIU
Keyword(s):  
Lattice Waves ◽  
Plasma Absorption

The nonlinear longitudinal lattice waves in a one-dimensional dusty chain with the plasma absorption effect

2019 ◽  
Vol 58 (11) ◽  
pp. 116002
Author(s):  
Min Tian ◽  
Hui Chen ◽  
Sanqiu Liu
Keyword(s):  
Absorption Effect ◽  
One Dimensional ◽  
Lattice Waves ◽  
Plasma Absorption

Influence of the Plasma Absorption on the Longitudinal Dust Lattice Waves in Dusty Plasmas

2013 ◽  
Vol 52 (5R) ◽  
pp. 050205 ◽  
Author(s):  
Dae-Han Ki ◽  
Young-Dae Jung
Keyword(s):  
Dusty Plasmas ◽  
Lattice Waves ◽  
Plasma Absorption

Interaction of electron streams with elastic lattice waves

1969 ◽  
Vol 97 (2) ◽  
pp. 257-306 ◽  
Author(s):  
V.I. Pustovoit
Keyword(s):  
Lattice Waves ◽  
Elastic Lattice

scholarly journals Strong Waves from Pulsars and Morphologies in SNRs

1983 ◽  
Vol 101 ◽  
pp. 499-501
Author(s):  
Gregory Benford ◽  
Attilio Ferrari ◽  
Silvano Massaglia
Keyword(s):  
Large Amplitude ◽  
Crab Nebula ◽  
Surrounding Medium ◽  
Low Frequency ◽  
Optical Emission ◽  
Amplitude Wave ◽  
Surface Magnetic Field ◽  
Plasma Absorption ◽  
The Crab Nebula ◽  
Large Amplitude Wave

Canonical models for pulsars predict the emission of low–frequency waves of large amplitudes, produced by the rotation of a neutron star possessing a strong surface magnetic field. Pacini (1968) proposed this as the basic drain which yields to the pulsar slowing–down rate. The main relevance of the large amplitude wave (LAW) is the energetic link it provides between the pulsar and the surrounding medium. This role has been differently emphasized (Rees and Gunn, 1974; Ferrari, 1974), referring to absorption effects by relativistic particle acceleration and thermal heating, either close to the pulsar magnetosphere or in the nebula. It has been analyzed in the special case of the Crab Nebula, where observations are especially rich (Rees, 1971). As the Crab Nebula displays a cavity around the pulsar of dimension ∼1017cm, the function of the wave in sweeping dense gas away from the circumpulsar region is widely accepted. Absorption probably occurs at the inner edges of the nebula; i.e., where the wave pressure and the nebular pressure come into balance. Ferrari (1974) interpreted the wisps of the Crab Nebula as the region where plasma absorption occurs, damping the large amplitude wave and driving “parametric” plasma turbulence, thus trasferring energy to optical radiation powering the nebula. The mechanism has been extended to interpret the specific features of the “wisps” emission (Benford et al., 1978). Possibly the wave fills the nebula completely, permeating the space outside filaments with electromagnetic energy, continuously accelerating electrons for the extended radio and optical emission (Rees, 1971).

scholarly journals Radiation model of a xenon flash lamp in a laser amplifier pump cavity

2015 ◽  
Vol 3 ◽  
Author(s):  
Yongzhong Wu ◽  
Jianqiang Zhu ◽  
Zhixiang Zhang ◽  
Yangshuai Li
Keyword(s):  
Absorption Coefficient ◽  
Gain Coefficient ◽  
Flash Lamp ◽  
Laser Amplifier ◽  
Radiation Model ◽  
Test Technique ◽  
Xenon Flash Lamp ◽  
Simplifying Assumptions ◽  
Plasma Absorption ◽  
Xenon Flash

Understanding the radiation model of a flash lamp is essential for the reflector design of a laser amplifier. Reflector design often involves several simplifying assumptions, like a point or Lambertian source; either of these assumptions may lead to significant errors in the output distribution. In practice, source non-idealities usually result in sacrificing the amplifier’s gain coefficient. We propose a novel test technique for attaining the xenon flash lamp absolute spectral intensity at various angles of view, and then accurately predict radiation distributions and generate the reflector shape. It is shown that due to the absorption of emitted radiation by the lamp itself, the behavior of the radiation model at various wavelengths is different. Numerical results of xenon plasma absorption coefficient were compared with the measured data. A reasonable agreement was obtained for the absorption coefficient parameters. Thus, this work provides a useful analytical tool for the engineering design of laser amplifier reflectors using xenon flash lamps as pumps.

Multiphoton and plasma absorption measurements in CaF2 and UV fused silica at 473 nm

2021 ◽  
Vol 18 (3) ◽  
pp. 035401
Author(s):  
Ya V Grudtsyn ◽  
A V Koribut ◽  
A A Rogashevskii ◽  
Yu A Gerasimova ◽  
V A Trofimov ◽  
...  
Keyword(s):  
Fused Silica ◽  
Plasma Absorption ◽  
Absorption Measurements

Plasma Absorption of Cyanocobalamin Co 57

1974 ◽  
Vol 134 (6) ◽  
pp. 1019 ◽  
Author(s):  
Alfred Doscherholmen
Keyword(s):  
Plasma Absorption

Effects of Dipole Moment on the Lattice Waves in One-Dimensional Dust Chain

2006 ◽  
Vol 23 (2) ◽  
pp. 403-406 ◽  
Author(s):  
Wang Chun-Hua ◽  
Wang Xiao-Gang
Keyword(s):  
Dipole Moment ◽  
One Dimensional ◽  
Lattice Waves

Dispersion relations of dust lattice waves in two-dimensional honeycomb configuration

2013 ◽  
Vol 79 (5) ◽  
pp. 629-633
Author(s):  
B. FAROKHI
Keyword(s):  
Dispersion Relation ◽  
Group Velocity ◽  
Hexagonal Lattice ◽  
Dispersion Relations ◽  
Two Dimensional ◽  
The Third ◽  
Lattice Waves ◽  
The Waves

AbstractThe linear dust lattice waves propagating in a two-dimensional honeycomb configuration is investigated. The interaction between particles is considered up to distance 2a, i.e. the third-neighbor interactions. Longitudinal and transverse (in-plane) dispersion relations are derived for waves in arbitrary directions. The study of dispersion relations with more neighbor interactions shows that in some cases the results change physically. Also, the dispersion relation in the different direction displays anisotropy of the group velocity in the lattice. The results are compared with dispersion relations of the waves in the hexagonal lattice.

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