Quasi-phase matching of high-order harmonic generation at high photon energies using counterpropagating pulses

TY - JOUR

T1 - Quasi-phase matching of high-order harmonic generation at high photon energies using counterpropagating pulses

AU - Lytle, A. L.

AU - Zhang, X.

AU - Arpin, P.

AU - Cohen, O.

AU - Murnane, M. M.

AU - Kapteyn, H. C.

PY - 2008/1/15

Y1 - 2008/1/15

N2 - We extend all-optical quasi-phase matching of high-order harmonic generation into spectral regions where conventional phase matching is not possible. The high laser intensities required to generate harmonics at energy > 130 eV, coupled with the resulting high level of ionization, preclude conventional phase matching in all nonlinear media. Selective enhancement factors between 40 and 150 in the flux of harmonics at photon energies around 140 eV are demonstrated using a train of two counterpropagating pulses.

AB - We extend all-optical quasi-phase matching of high-order harmonic generation into spectral regions where conventional phase matching is not possible. The high laser intensities required to generate harmonics at energy > 130 eV, coupled with the resulting high level of ionization, preclude conventional phase matching in all nonlinear media. Selective enhancement factors between 40 and 150 in the flux of harmonics at photon energies around 140 eV are demonstrated using a train of two counterpropagating pulses.

UR - http://www.scopus.com/inward/record.url?scp=40149084626&partnerID=8YFLogxK

U2 - 10.1364/OL.33.000174

DO - 10.1364/OL.33.000174

M3 - 文章

AN - SCOPUS:40149084626

SN - 0146-9592

VL - 33

SP - 174

EP - 176

JO - Optics Letters

JF - Optics Letters

IS - 2

ER -