TY - JOUR
T1 - Grating-assisted phase matching in extreme nonlinear optics
AU - Cohen, Oren
AU - Zhang, Xiaoshi
AU - Lytle, Amy L.
AU - Popmintchev, Tenio
AU - Murnane, Margaret M.
AU - Kapteyn, Henry C.
PY - 2007/7/31
Y1 - 2007/7/31
N2 - We propose a new technique for phase matching high harmonic generation that can be used for generating bright, tabletop, tunable, and coherent x-ray sources at keV photon energies. A weak quasi-cw counterpropagating field induces a sinusoidal modulation in the phase of the emitted harmonics that can be used for correcting the large plasma-induced phase mismatch. We develop an analytical model that describes this grating-assisted x-ray phase matching and predicts that very modest intensities (<1010W/cm2) of quasi-cw counterpropagating fields are required for implementation.
AB - We propose a new technique for phase matching high harmonic generation that can be used for generating bright, tabletop, tunable, and coherent x-ray sources at keV photon energies. A weak quasi-cw counterpropagating field induces a sinusoidal modulation in the phase of the emitted harmonics that can be used for correcting the large plasma-induced phase mismatch. We develop an analytical model that describes this grating-assisted x-ray phase matching and predicts that very modest intensities (<1010W/cm2) of quasi-cw counterpropagating fields are required for implementation.
UR - http://www.scopus.com/inward/record.url?scp=34547587597&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.99.053902
DO - 10.1103/PhysRevLett.99.053902
M3 - 文章
AN - SCOPUS:34547587597
SN - 0031-9007
VL - 99
JO - Physical Review Letters
JF - Physical Review Letters
IS - 5
M1 - 053902
ER -