Title: Isolated broadband attosecond pulse generation with near- and mid-infrared driver pulses via time-gated phase matching
Authors: Hernandez Garcia, Carlos 
Popmintchev, Tenio 
Murnane, Margaret M. 
Kapteyn, Henry C. 
Plaja, Luis  
Becker, Andreas 
Jaron-Becker, Agnieszka  
Category: Original Research Article
Issue Date: 15-May-2017
Citation: 
Hernandez Garcia, C., Popmintchev, T., Murnane, M., Kapteyn, H. C., Plaja, L., Becker, A., & Jaron-Becker, A. (2017). Isolated broadband attosecond pulse generation with near- and mid-infrared driver pulses via time-gated phase matching. Optics Express, 25(10), 11855-11866–11866. https://doi.org/10.1364/OE.25.011855
Journal: Optics Express 
ISSN: 1094-4087
Abstract: 
We present a theoretical analysis of the time-gated phase matching (ionization gating) mechanism in high-order harmonic generation for the isolation of attosecond pulses at near-infrared and mid-infrared driver wavelengths, for both few-cycle and multi-cycle driving laser pulses. Results of our high harmonic generation and three-dimensional propagation simulations show that broadband isolated pulses spanning from the extreme-ultraviolet well into the soft X-ray region of the spectrum can be generated for both few-cycle and multi-cycle laser pulses. We demonstrate the key role of absorption and group velocity matching for generating bright, isolated, attosecond pulses using long wavelength multi-cycle pulses. Finally, we show that this technique is robust against carrier-envelope phase and peak intensity variations. © 2017 Optical Society of America
Keywords: Ultrafast nonlinear optics; Strong-field processes; Ultrafast phenomena; X-rays, soft x-rays, extreme ultraviolet (EUV)
DOI: 10.1364/OE.25.011855
Organisation: E387-01 - Forschungsbereich Photonik 
License: In Copyright 1.0
Publication Type: Article
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