Title :
Phase matching of high harmonic generation in the water window and beyond at high pressures using mid-IR lasers
Author :
Popmintchev, T. ; Chen, M.C. ; Bahabad, A. ; Gerrity, M. ; Arpin, P. ; Sidorenko, P. ; Cohen, O. ; Seaberg, M. ; Sandberg, R. ; Backus, S. ; Zhang, X. ; Taft, G. ; Christov, I.P. ; Murnane, M.M. ; Kapteyn, H.C.
Author_Institution :
JILA, Univ. of Colorado at Boulder, Boulder, CO, USA
Abstract :
We demonstrate that using longer-wavelength driving light in high-order harmonic generation requires moderately ionized larger-density atoms to perfectly phase match the process, scaling conventional phase matching at low ionization to extremely high photon energies.
Keywords :
laser beams; optical harmonic generation; optical phase matching; photons; mid-IR lasers; moderately ionized atoms; optical harmonic generation; optical phase matching; photon energy; water window; Atomic beams; Free electron lasers; Frequency conversion; Helium; Ionization; Laser modes; Laser theory; Optical frequency conversion; Optical harmonic generation; X-ray lasers; (140.7240) UV, XUV, and X-ray lasers; (190.4160) Multiharmonic generation;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
