Role of pulse shaping in control of focus and intensity of terahertz radiation

2019 ◽  
Vol 383 (24) ◽  
pp. 2891-2896 ◽  
Author(s):  
Reenu Gill ◽  
Hitendra K. Malik
Keyword(s):  
Terahertz Radiation ◽  
Pulse Shaping

scholarly journals Investigation of the role of the lateral photo-Dember effect in the generation of terahertz radiation using a metallic mask on a semiconductor

2013 ◽  
Vol 21 (14) ◽  
pp. 16263 ◽  
Author(s):  
M. E. Barnes ◽  
S. A. Berry ◽  
P. Gow ◽  
D. McBryde ◽  
G. J. Daniell ◽  
...  
Keyword(s):  
Terahertz Radiation ◽  
Dember Effect

scholarly journals Role of resonance absorption in terahertz radiation generation from solid targets

2014 ◽  
Vol 22 (10) ◽  
pp. 11797 ◽  
Author(s):  
Chun Li ◽  
Yun-Qian Cui ◽  
Mu-Lin Zhou ◽  
Fei Du ◽  
Yu-Tong Li ◽  
...  
Keyword(s):  
Terahertz Radiation ◽  
Resonance Absorption ◽  
Radiation Generation

On the role of photoionization in generation of terahertz radiation in the plasma of optical breakdown

2012 ◽  
Vol 29 (8) ◽  
pp. 1911 ◽  
Author(s):  
Alexander V. Borodin ◽  
Mikhail N. Esaulkov ◽  
Ilya I. Kuritsyn ◽  
Igor A. Kotelnikov ◽  
Alexander P. Shkurinov
Keyword(s):  
Terahertz Radiation ◽  
Optical Breakdown

scholarly journals The role of optical rectification in the generation of terahertz radiation from GaBiAs

2009 ◽  
Vol 94 (25) ◽  
pp. 251115 ◽  
Author(s):  
K. Radhanpura ◽  
S. Hargreaves ◽  
R. A. Lewis ◽  
M. Henini
Keyword(s):  
Terahertz Radiation ◽  
Optical Rectification

Application of feedback-controlled pulse shaping for control of CARS spectra: the role of phase and amplitude modulation

2007 ◽  
Vol 38 (8) ◽  
pp. 1006-1021 ◽  
Author(s):  
J. Konradi ◽  
A. Scaria ◽  
V. Namboodiri ◽  
A. Materny
Keyword(s):  
Amplitude Modulation ◽  
Pulse Shaping

Estimation of pulse shaping for well logs

Geophysics ◽  
2001 ◽  
Vol 66 (5) ◽  
pp. 1605-1611 ◽  
Author(s):  
K. Sølna
Keyword(s):  
Stochastic Model ◽  
Pulse Shaping ◽  
Well Logs ◽  
Well Log ◽  
Smoothing Effect ◽  
Sonic Log ◽  
Apparent Attenuation ◽  
Sonic Logs ◽  
Real Medium

A wavelet propagating in a finely layered lossless medium is subject to apparent attenuation that changes its shape. Can a sonic log be used to characterize this change? I show that numerical simulations with the well‐log as medium give an apparent attenuation or diffusion of the pulse that is very different from the attenuation in the real medium. This is due to the smoothing effect of the well‐log tool. Based on a version of the O’Doherty‐Anstey approximation, I derive an expression that reveals the role of the tool. Using a sonic log, I verify the theory and show how tool effects can be mitigated by deconvolution. I also propose a two‐scale stochastic model for the sonic log and a procedure for estimation of its parameters. One application of sonic logs is to quantify apparent attenuation and, in this context, my results are important.

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