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Title: Single attosecond pulse generation from multicycle nonlinear chirped pulses

Journal Article · · Physical Review. A
; ;  [1];  [1]
  1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800 (China)

We present a method of producing single attosecond pulses by high-order harmonic generation with multicycle nonlinear chirped driver laser pulses. The symmetry of the laser field in several optical cycles near the pulse center is broken, and then the photons near the cutoff burst only in half optical cycle. By selecting out the harmonics near the cutoff, an isolated attosecond pulse could be obtained. The results are almost independent of the length and chirp form of the driver laser pulse.

OSTI ID:
21352437
Journal Information:
Physical Review. A, Vol. 80, Issue 6; Other Information: DOI: 10.1103/PhysRevA.80.063818; (c) 2009 The American Physical Society; ISSN 1050-2947
Country of Publication:
United States
Language:
English