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Title: Coherent control of the electron quantum paths for the generation of single ultrashort atto second laser pulse

Abstract

We report a mechanism and a realizable approach for the coherent control of the generation of an isolated and ultrashort atto second (as) laser pulse from atoms by optimizing the two-color laser fields with a proper time delay. Optimizing the laser pulse shape allows the control of the electron quantum paths and enables high-harmonic generation from the long- and short-trajectory electrons to be enhanced and split near the cutoff region. In addition, it delays the long-trajectory electron emission time and allows the production of extremely short atto second pulses in a relatively narrow time duration. As a case study, we show that an isolated 30 as pulse with a bandwidth of 127 eV can be generated directly from the contribution of long-trajectory electrons alone.

Authors:
 [1];  [1];  [2];  [1];  [3]
  1. Center for Quantum Science and Engineering, Department of Physics, National Taiwan University, Taipei 10617, Taiwan (China)
  2. (China)
  3. (United States)
Publication Date:
OSTI Identifier:
22068733
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; COLOR MODEL; ELECTRON EMISSION; ELECTRONS; EV RANGE 100-1000; HARMONIC GENERATION; LASER RADIATION; LASERS; OPTIMIZATION; PULSE SHAPERS; PULSES; TIME DELAY; TRAJECTORIES

Citation Formats

Liu, I-Lin, Li, Peng-Cheng, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, Chu, Shih-I, and Department of Chemistry, University of Kansas, Lawrence, Kansas 66045. Coherent control of the electron quantum paths for the generation of single ultrashort atto second laser pulse. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.033414.
Liu, I-Lin, Li, Peng-Cheng, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, Chu, Shih-I, & Department of Chemistry, University of Kansas, Lawrence, Kansas 66045. Coherent control of the electron quantum paths for the generation of single ultrashort atto second laser pulse. United States. doi:10.1103/PHYSREVA.84.033414.
Liu, I-Lin, Li, Peng-Cheng, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, Chu, Shih-I, and Department of Chemistry, University of Kansas, Lawrence, Kansas 66045. Thu . "Coherent control of the electron quantum paths for the generation of single ultrashort atto second laser pulse". United States. doi:10.1103/PHYSREVA.84.033414.
@article{osti_22068733,
title = {Coherent control of the electron quantum paths for the generation of single ultrashort atto second laser pulse},
author = {Liu, I-Lin and Li, Peng-Cheng and College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 and Chu, Shih-I and Department of Chemistry, University of Kansas, Lawrence, Kansas 66045},
abstractNote = {We report a mechanism and a realizable approach for the coherent control of the generation of an isolated and ultrashort atto second (as) laser pulse from atoms by optimizing the two-color laser fields with a proper time delay. Optimizing the laser pulse shape allows the control of the electron quantum paths and enables high-harmonic generation from the long- and short-trajectory electrons to be enhanced and split near the cutoff region. In addition, it delays the long-trajectory electron emission time and allows the production of extremely short atto second pulses in a relatively narrow time duration. As a case study, we show that an isolated 30 as pulse with a bandwidth of 127 eV can be generated directly from the contribution of long-trajectory electrons alone.},
doi = {10.1103/PHYSREVA.84.033414},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}