Universal long-wavelength nonlinear optical response of noble gases

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We demonstrate numerically that the long-wavelength nonlinear dipole moment and ionization rate versus electric field strength F for different noble gases can be scaled onto each other, revealing universal functions that characterize the form of the nonlinear response. We elucidate the physical origin of the universality by using a metastable state analysis of the light-atom interaction in combination with a scaling analysis. Our results also provide a powerful new means of characterizing the nonlinear response in the mid-infrared and long-wave infrared for optical filamentation studies.

Original languageEnglish (US)
Pages (from-to)25445-25456
Number of pages12
JournalOptics Express
Issue number18
StatePublished - Sep 2 2019

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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