On the relative roles of higher-order nonlinearity and ionization in ultrafast light-matter interactions

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

Far off-resonant ultrafast and nonlinear light-matter interactions are studied using a one-dimensional atomic model. Results from a pump-probe diagnostic reveal that any higher-order nonlinear refraction is masked by ionizationinduced defocusing before it becomes significant. On the other hand, we show that signatures of a higher-order nonlinearity may still be manifest via low-order harmonics of the pump center frequency. Implications for filamentation of femtosecond pulses are pointed out.

Original languageEnglish (US)
Pages (from-to)1604-1606
Number of pages3
JournalOptics letters
Volume37
Issue number10
DOIs
StatePublished - May 15 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'On the relative roles of higher-order nonlinearity and ionization in ultrafast light-matter interactions'. Together they form a unique fingerprint.

  • Cite this