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Amouei Bijarbaneh Z, Ghadiri M, Batebi S. Investigating the Effect of Change of Chirp Functions in Optimal Control of High Order Harmonic’s Cutoff and Attosecond Pulse Generation by Chirped Two-Color Laser Field. ICOP & ICPET _ INPC _ ICOFS 2015; 21 :829-832
URL: http://opsi.ir/article-1-771-en.html
URL: http://opsi.ir/article-1-771-en.html
1- Guilan University
Abstract: (3660 Views)
In this paper we propose a method for an isolated attosecond pulse generation using the combination of fundamental chirped laser field (5 fs, 800 nm) with two chirp function and a controlling laser field (10 fs, 400 nm). It is shown that by inserting optimized chirped parameter in fundamental laser field, plateau of the high order harmonics would be broadened. Furthermore, because of importing chirped pulse, quantum short trajectory is enhanced and long trajectory is suppressed. By superposition of properly selected range of the harmonics spectrum in the continuum region, an isolated attosecond pulse is generated.
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