scholarly journals Transient grating in a thin gas target for characterization of extremely short optical pulses

2020 ◽  
Vol 45 (8) ◽  
pp. 2231
Author(s):  
Yuichiro Kida
Keyword(s):  
Transient Grating ◽  
Optical Pulses ◽  
Gas Target ◽  
Extremely Short Optical Pulses

Extremely short optical pulses of airy section in the environment of oriented carbon nanotubes

2020 ◽  
Author(s):  
U. M. Samarov ◽  
T. B. Shilov ◽  
Yu. V. Dvuzhilova ◽  
I. A. Chelnintsev ◽  
I. S. Dvuzhilov
Keyword(s):  
Carbon Nanotubes ◽  
Optical Pulses ◽  
Extremely Short Optical Pulses

Amplitude and Phase Characterization of 5.0 fs Optical Pulses Using Spectral Phase Interferometry for Direct Electric-Field Reconstruction

2001 ◽  
Vol 40 (Part 2, No. 7A) ◽  
pp. L684-L687 ◽  
Author(s):  
Liming Li ◽  
Satoru Kusaka ◽  
Naoki Karasawa ◽  
Ryuji Morita ◽  
Hidemi Shigekawa ◽  
...  
Keyword(s):  
Electric Field ◽  
Spectral Phase ◽  
Optical Pulses ◽  
Field Reconstruction ◽  
Phase Characterization

Peculiarities of extremely short optical pulses propagation in carbon nanotube medium with nonlinear absorption

2020 ◽  
Vol 34 (31) ◽  
pp. 2050358
Author(s):  
Natalia N. Konobeeva ◽  
Eduard G. Fedorov ◽  
Mikhail B. Belonenko
Keyword(s):  
Carbon Nanotubes ◽  
Nonlinear Absorption ◽  
Piezoelectric Effect ◽  
Pulse Field ◽  
Heavy Nuclei ◽  
Optical Pulses ◽  
Effective Equation ◽  
Electromagnetic Pulses ◽  
The Stability ◽  
Extremely Short Optical Pulses

In this paper, we study the propagation of extremely short electromagnetic pulses in a medium with zig–zag carbon nanotubes taking into account pumping and nonlinear absorption introduced phenomenologically. Based on Maxwell’s equations, we obtain an effective equation for the vector potential of the electromagnetic field, which takes into account the dissipation of the pulse field under the conditions of the piezoelectric effect associated with the vibrations of heavy nuclei of the medium, pumping by an external electromagnetic wave, and nonlinear absorption of carbon nanotubes. We demonstrate the stability of the electromagnetic pulse shape on a time scale that is significantly longer than the pulse duration but not exceeding the relaxation time.

Extremely short optical pulses and superstrings

2020 ◽  
Vol 35 (27) ◽  
pp. 2050221
Author(s):  
Mikhail B. Belonenko ◽  
Natalia N. Konobeeva ◽  
Alexander V. Zhukov
Keyword(s):  
Numerical Solution ◽  
Effective Action ◽  
Optical Pulse ◽  
Optical Pulses ◽  
Maxwell’S Equation ◽  
Pulse Dynamics ◽  
Short Optical Pulse ◽  
Time Space ◽  
Extremely Short Optical Pulses ◽  
Schwinger Mechanism

We analyze the propagation of an extremely short optical pulse from the numerical solution of the Maxwell’s equation related to the effective action obtained in the framework of the theory of superstrings in flat time space. The pulse dynamics turned out to be unstable and eventually leads to a collapse. We particularly analyze the Schwinger mechanism which occurs during the collapse of the pulse.

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