Open AccessHigh-order pulse front tilt caused by high-order angular dispersion
Author(s) -
Yasuo Nabekawa,
Katsumi Midorikawa
Publication year - 2003
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.003365
Subject(s) - optics , tilt (camera) , pulse (music) , bandwidth limited pulse , dispersion (optics) , physics , multiphoton intrapulse interference phase scan , ultrashort pulse , femtosecond pulse shaping , laser , geometry , mathematics , detector
We have found general expressions relating the high-order pulse front tilt and the high-order angular dispersion in an ultrashort pulse, for the first time to our knowledge. The general formulae based on Fermat's principle are applicable for any ultrashort pulse with angular dispersion in the limit of geometrical optics. By virtue of these formulae, we can calculate the high-order pulse front tilt in the sub-20-fs UV pulse generated in a novel scheme of sum-frequency mixing in a nonlinear crystal accompanied by angular dispersion. It is also demonstrated how the high-order angular dispersion can be eliminated in the calculation.