Title :
Phase-matching in cascaded third-order frequency mixing
Author :
Durfee, C.G. ; Misoguti, L. ; Kapteyn, H. ; Murnane, M.
Author_Institution :
Dept. of Phys., Colorado Sch. of Mines, Golden, CO, USA
Abstract :
Summary form only given. We consider here the frequency mixing processes that result in the generation of ultrafast vacuum ultraviolet pulses. We have shown experimentally that by mixing the fundamental (800 nm) of an ultrafast Ti:sapphire laser pulse with its second harmonic (400nm) in a gas-filled hollow waveguide, very high conversion efficiency to the deep ultraviolet (267nm) is possible. We have calculated analytically the phase matching conditions for high order cascaded conversion and found three distinct mechanisms at work. We also present detailed simulations that include the effects of backconversion, self- and cross-phase modulation and spectral dispersion.
Keywords :
X-ray optics; laser beams; optical dispersion; optical phase matching; optical pulse generation; optical saturation; optical waveguides; 267 nm; 400 nm; 800 nm; backconversion; deep ultraviolet; frequency mixing processes; fundamental pulse; gas-filled hollow waveguide; high conversion efficiency; high order cascaded conversion; input beams; phase matching conditions; saturated conversion; second harmonic; self-phase modulation; spectral dispersion; ultrafast Ti:sapphire laser pulse; ultrafast VUV pulses; ultrafast vacuum ultraviolet pulse generation; Ear; Frequency conversion; Gas lasers; Nonlinear optics; Optical frequency conversion; Optical pulse generation; Optical pulses; Optical waveguides; Physics; Waveguide lasers;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2001. QELS '01. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-663-X
DOI :
10.1109/QELS.2001.962236
