scholarly journals Single-shot d-scan technique for ultrashort laser pulse characterization using transverse second-harmonic generation in random nonlinear crystals

2020 ◽  
Vol 45 (14) ◽  
pp. 3925
Author(s):  
F. J. Salgado-Remacha ◽  
B. Alonso ◽  
H. Crespo ◽  
C. Cojocaru ◽  
J. Trull ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Ultrashort Laser Pulse ◽  
Second Harmonic ◽  
Single Shot ◽  
Nonlinear Crystals ◽  
Ultrashort Laser ◽  
Pulse Characterization

Theoretical solution to second-harmonic generation of ultrashort laser pulse

2017 ◽  
Vol 122 (24) ◽  
pp. 243105 ◽  
Author(s):  
Chen-Yang Hu ◽  
Hui-Jun He ◽  
Bao-Qin Chen ◽  
Zhi-Yi Wei ◽  
Zhi-Yuan Li
Keyword(s):  
Laser Pulse ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Ultrashort Laser Pulse ◽  
Second Harmonic ◽  
Theoretical Solution ◽  
Ultrashort Laser

scholarly journals Second-harmonic generation by a chirped laser pulse with the exponential density ramp profile in the presence of a planar magnetostatic wiggler

2019 ◽  
Vol 37 (4) ◽  
pp. 442-447 ◽  
Author(s):  
Niti Kant ◽  
Arvinder Singh ◽  
Vishal Thakur
Keyword(s):  
Laser Pulse ◽  
Second Harmonic Generation ◽  
Lorentz Force ◽  
Plasma Wave ◽  
Plasma Density ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Second Order ◽  
Self Focusing ◽  
Chirped Laser Pulse

AbstractSecond-harmonic generation of the relativistic self-focused chirped laser pulse in plasma has been studied with the exponential plasma density ramp profile in the presence of a planar magnetostatic wiggler. It is evident that the exponential plasma density ramp is helpful in enhancing second-harmonic generation as, with the introduction of the exponential plasma density ramp, self-focusing becomes stronger and hence, it leads to enhance the harmonic generation of the second order in the plasma. Also, it is observed that the efficiency of second-harmonic generation enhances significantly with an increase in the value of the chirp parameter. Further, the magnetostatic wiggler helps in enhancing the harmonic generation of the second order. This is due to the fact that dynamics of the oscillating electrons is altered due to the Lorentz force which, in turn, modifies the plasma wave and, hence, results in the efficient second-harmonic generation.

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