|
|
|
Isolated sub-30 attosecond pulse generation using a multicycle two-color chirped laser and a static electric field |
| Gang-Tai ZHANG |
| 宝鸡文理学院 |
|
|
|
|
Abstract We present a theoretical investigation of high-order harmonic
generation in a chirped two-color laser field, which is
synthesized by a 10 fs/800 nm fundamental chirped pulse and a 10
fs/1760 nm subharmonic pulse. It is shown that a supercontinuum
can be produced using the multicycle two-color chirped field.
However, the supercontinuum reveals a strong modulation structure,
which is not good for the generation of an isolated attosecond
pulse. By adding a static electric field to the multicycle
two-color chirped field, not only the harmonic cutoff is extended
remarkably, but also the quantum paths of the HHG are modified
significantly. As a result, both the extension of the
supercontinuum and the selection of a single quantum path are
achieved, producing an isolated 23-as pulse with a bandwidth of
about 170.6 eV. Furthermore, the influences of the laser
intensities on the supercontinuum and isolated attosecond pulse
generation are investigated.
|
Received: 10 September 2013
Published: 31 October 2013
|
|
Corresponding Authors:
Gang-Tai ZHANG
|
Cite this article:
Gang-Tai ZHANG Isolated sub-30 attosecond pulse generation using a multicycle two-color chirped laser and a static electric field Chin. Phys. B 0
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
