Controlling Nonsequential Double Ionization in Two-Color Circularly Polarized Femtosecond Laser Fields
Journal Article
·
· Physical Review Letters
- Univ. of Colorado and National Inst. of Standards and Technology (NIST), Boulder, CO (United States). JILA, Dept. of Physics; JILA, University of Colorado Boulder
- Univ. of Colorado and National Inst. of Standards and Technology (NIST), Boulder, CO (United States). JILA, Dept. of Physics
- Univ. of Northern Colorado, Greeley, CO (United States). Dept. of Physics and Astronomy
Atoms undergoing strong-field ionization in two-color circularly polarized femtosecond laser fields exhibit unique two-dimensional photoelectron trajectories and can emit bright circularly polarized extreme ultraviolet and soft-x-ray beams. Here, we present the first experimental observation of nonsequential double ionization in these tailored laser fields. Moreover, we can enhance or suppress nonsequential double ionization by changing the intensity ratio and helicity of the two driving laser fields to maximize or minimize high-energy electron-ion rescattering. Our experimental results are explained through classical simulations, which also provide insight into how to optimize the generation of circularly polarized high harmonic beams.
- Research Organization:
- National Inst. of Standards and Technology (NIST), Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- FG02-99ER14982; SC0002002
- OSTI ID:
- 1690331
- Alternate ID(s):
- OSTI ID: 1325609
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 117; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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