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

Research output: Contribution to journalArticle

18 Citations (Scopus)

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

Fingerprint

nonlinearity
pumps
ionization
defocusing
refraction
signatures
interactions
harmonics
probes
pulses

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

On the relative roles of higher-order nonlinearity and ionization in ultrafast light-matter interactions. / Brown, J. M.; Wright, Ewan M; Moloney, Jerome V; Kolesik, Miroslav.

In: Optics Letters, Vol. 37, No. 10, 15.05.2012, p. 1604-1606.

Research output: Contribution to journalArticle

@article{7e17a4458d354edd8b6d12cfcd3593c4,
title = "On the relative roles of higher-order nonlinearity and ionization in ultrafast light-matter interactions",
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.",
author = "Brown, {J. M.} and Wright, {Ewan M} and Moloney, {Jerome V} and Miroslav Kolesik",
year = "2012",
month = "5",
day = "15",
doi = "10.1364/OL.37.001604",
language = "English (US)",
volume = "37",
pages = "1604--1606",
journal = "Optics Letters",
issn = "0146-9592",
publisher = "The Optical Society",
number = "10",

}

TY - JOUR

T1 - On the relative roles of higher-order nonlinearity and ionization in ultrafast light-matter interactions

AU - Brown, J. M.

AU - Wright, Ewan M

AU - Moloney, Jerome V

AU - Kolesik, Miroslav

PY - 2012/5/15

Y1 - 2012/5/15

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84862084724&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862084724&partnerID=8YFLogxK

U2 - 10.1364/OL.37.001604

DO - 10.1364/OL.37.001604

M3 - Article

C2 - 22627510

AN - SCOPUS:84862084724

VL - 37

SP - 1604

EP - 1606

JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

IS - 10

ER -