Gauß-Pulse

Physik Online ◽  
2018 ◽  
Author(s):  
Hans-Jörg Kull
Keyword(s):  
Gauss Pulse

Harmonic Conversion Rule for Gauss Pulse with Nonideal Conditions

2014 ◽  
Vol 34 (8) ◽  
pp. 0819001
Author(s):  
李恪宇 Li Keyu ◽  
冯斌 Feng Bin ◽  
王芳 Wang Fang ◽  
贾怀庭 Jia Huaiting ◽  
韩伟 Han Wei ◽  
...  
Keyword(s):  
Gauss Pulse ◽  
Harmonic Conversion

Theoretical Analysis on Dispersion and Non-linearity Affecting Gauss Pulse Propagation

2010 ◽  
Vol 39 (5) ◽  
pp. 829-833
Author(s):  
蔡托 CAI Tuo ◽  
桑田 SANG Tian ◽  
张小伟 ZHANG Xiao-wei
Keyword(s):  
Theoretical Analysis ◽  
Pulse Propagation ◽  
Gauss Pulse

Simulation of Transient EMP Effects Coupling through Apertures Using Sub-Gridding FDTD Algorithm

2012 ◽  
Vol 195-196 ◽  
pp. 814-820 ◽  
Author(s):  
Jin Shi Xiao ◽  
Xiong Wei Ren
Keyword(s):  
Field Strength ◽  
Current Density ◽  
Electromagnetic Pulse ◽  
Pulse Source ◽  
Coupling Effects ◽  
Transient Electromagnetic ◽  
Double Exponential ◽  
Gauss Pulse ◽  
Em Field ◽  
Exponential Pulse

Transient electromagnetic pulse (EMP) can easily couple into the inner of targets via apertures. To calculate the EMP coupling effects on a cylinder object with openings, the coupling course is simulated using sub-gridding FDTD algorithm in this paper. Gauss pulse and double exponential pulse are selected as the incident pulse source. The coupling EM field strength E inside the object and the current density J on the surface are calculated. Several rules about EMP coupling effects are gotten both in time and frequency domain. The results can help us to understand the damage effects of transient EMP.

The Influences of Turbid Media on the Optical Property of Different Ultra Short Gauss Pulse

2010 ◽  
Vol 663-665 ◽  
pp. 296-299
Author(s):  
Man Zhao ◽  
Chang Zhao
Keyword(s):  
Boundary Condition ◽  
Laser Pulse ◽  
Pulse Shape ◽  
Turbid Media ◽  
Anisotropy Coefficient ◽  
Diffusive Scattering ◽  
Gauss Pulse ◽  
Simulation Results ◽  
Optical Properties Of Tissue ◽  
Homogeneous Media

Based on the diffusion approximation theory, when the laser pulse transmitting through the turbid media, its energy will be attenuated and the pulse shape will be changed by the scattering and absorption. In this paper, Mathematics equations of the ultra short Gauss laser pulse in different pulse width tp are given, the reflective pulses with the boundary condition of semi-infinite homogeneous media are discussed. We get the simulation results of reflective intensity and the reflective pulse shape of different tp based on the diffusion equation. From the results, we know that the ultra short Gauss laser pulse will be widened by the diffusive scattering. Besides, we find that the various medium parameters will influence the reflection of the Gauss laser pulse very differently. With the boundary condition of semi-infinite homogeneous media, the influence of the absorption, the scattering, and the anisotropy coefficient will be also changed by the different tp of ultra short Gauss laser pulse. All the conditions mentioned above have been investigated in the present paper. This study will be very useful for the measurement of optical properties of tissue.

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