2010
DOI: 10.1103/physrevlett.104.233901
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Infrared Two-Color Multicycle Laser Field Synthesis for Generating an Intense Attosecond Pulse

Abstract: We propose and demonstrate the generation of a continuum high-order harmonic spectrum by mixing multicycle two-color (TC) laser fields with the aim of obtaining an intense isolated attosecond pulse. By optimizing the wavelength of a supplementary infrared pulse in a TC field, a continuum harmonic spectrum was created around the cutoff region without carrier-envelope phase stabilization. The obtained harmonic spectra clearly show the possibility of generating isolated attosecond pulses from a multicycle TC lase… Show more

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Cited by 229 publications
(116 citation statements)
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“…Similarly, enhancement of HHG has been predicted in many theoretical simulations (Supplementary Discussion). More recently, advancement in optical parametric amplification (OPA) and optical parametric chirped-pulse amplification (OPCPA) technology has made it possible to perform coherent wavelength multiplexing of ultra-broadband (over two or more octaves) pulses with full phase and amplitude control, thus allowing the generation of any optical waveform [8][9][10][11][12][13][14][15][16][17][18] . With so many 'knobs' accessible, it is of critical importance to develop a general algorithm for optimal waveform control for the efficient enhancement of high-harmonic generation and for other strong field phenomena.…”
mentioning
confidence: 99%
“…Similarly, enhancement of HHG has been predicted in many theoretical simulations (Supplementary Discussion). More recently, advancement in optical parametric amplification (OPA) and optical parametric chirped-pulse amplification (OPCPA) technology has made it possible to perform coherent wavelength multiplexing of ultra-broadband (over two or more octaves) pulses with full phase and amplitude control, thus allowing the generation of any optical waveform [8][9][10][11][12][13][14][15][16][17][18] . With so many 'knobs' accessible, it is of critical importance to develop a general algorithm for optimal waveform control for the efficient enhancement of high-harmonic generation and for other strong field phenomena.…”
mentioning
confidence: 99%
“…In this case a single recollission in an atomic ensemble leads to the emission of a single XUV burst with continuum spectral power distribution (illustrated with black solid line in the down panel of Figure 1c) and the shortest duration of the asec pulse is limited by the XUV spectrum passing though the band pass XUV filter. Isolated pulses can be produced using (I) part of the continuum XUV radiation emitted using single-cycle driving laser fields [83]; (II) the cut-off region of the quasi-continuum XUV spectrum emitted using few-cycles driving laser fields [29]; (III) part of the continuum XUV radiation emitted using few-cycle driving laser fields in combination with PG approaches [62,63]; (IV) part of the continuum XUV radiation emitted using few-cycle driving laser fields in combination with IG approaches [63,65,66] part of the continuum XUV radiation emitted using multi-cycle driving laser fields in combination with LH approaches [67][68][69] and (V) part of the continuum XUV radiation emitted using multi-cycle driving laser fields in combination with PG approaches [49,64,[70][71][72]107]. In all cases the stability of the CEP of the laser system is a decisive matter, while if this is not possible (as in the case of high power multi-cycle laser systems), approaches for selecting single asec pulses by shot-to-shot measuring the CEP value are required [71,108].…”
Section: Generation Of Isolated Asec Pulsesmentioning
confidence: 99%
“…However, the energy throughput of such hollow-core fiber compressors is limited by ionization losses in the gas medium, thus preventing further energy upscaling to the (multi-)mJ level, which is required for many interesting applications in attosecond science. In contrast, parametric synthesizers [2][3][4][5][6][7] do not face an energy-scaling bottleneck, and spectral extension into the mid-IR region is particularly appealing for the realization of bright coherent tabletop high-harmonic sources in the waterwindow and keV X-ray region [8,9].…”
Section: Introductionmentioning
confidence: 99%