Three-photon near-threshold photoionization dynamics of isooctane

Andrew T. Healy; David F. Underwood; Sanford Lipsky; David A. Blank

doi:10.1063/1.1989320

Three-photon near-threshold photoionization dynamics of isooctane

Andrew T. Healy, David F. Underwood, Sanford Lipsky, David A. Blank

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The electron survival probability following three-photon (9.3 eV total) near-threshold photoionization of neat isooctane is measured with sub- 50 fs time resolution. The measured dynamics are nonexponential in time and are well described by a diffusion-controlled electron-cation recombination model. Excitation-power-dependent studies indicate that the unperturbed three-photon threshold ionization is only observed for pump irradiance below 0.5 TW cm2. At excitation fields above this level, the signal is no longer cubic in the excitation irradiance, and the observed electron survival probability dramatically changes, decaying as a single exponential in time.

Original language	English (US)
Article number	051105
Journal	Journal of Chemical Physics
Volume	123
Issue number	5
DOIs	https://doi.org/10.1063/1.1989320
State	Published - Sep 5 2005

Access

10.1063/1.1989320

Fingerprint Dive into the research topics of 'Three-photon near-threshold photoionization dynamics of isooctane'. Together they form a unique fingerprint.

Cite this

@article{0cb3b3d0778845218d2cd1eafb37f217,

title = "Three-photon near-threshold photoionization dynamics of isooctane",

abstract = "The electron survival probability following three-photon (9.3 eV total) near-threshold photoionization of neat isooctane is measured with sub- 50 fs time resolution. The measured dynamics are nonexponential in time and are well described by a diffusion-controlled electron-cation recombination model. Excitation-power-dependent studies indicate that the unperturbed three-photon threshold ionization is only observed for pump irradiance below 0.5 TW cm2. At excitation fields above this level, the signal is no longer cubic in the excitation irradiance, and the observed electron survival probability dramatically changes, decaying as a single exponential in time.",

author = "Healy, {Andrew T.} and Underwood, {David F.} and Sanford Lipsky and Blank, {David A.}",

year = "2005",

month = sep,

day = "5",

doi = "10.1063/1.1989320",

language = "English (US)",

volume = "123",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics Publising LLC",

number = "5",

}

TY - JOUR

T1 - Three-photon near-threshold photoionization dynamics of isooctane

AU - Healy, Andrew T.

AU - Underwood, David F.

AU - Lipsky, Sanford

AU - Blank, David A.

PY - 2005/9/5

Y1 - 2005/9/5

N2 - The electron survival probability following three-photon (9.3 eV total) near-threshold photoionization of neat isooctane is measured with sub- 50 fs time resolution. The measured dynamics are nonexponential in time and are well described by a diffusion-controlled electron-cation recombination model. Excitation-power-dependent studies indicate that the unperturbed three-photon threshold ionization is only observed for pump irradiance below 0.5 TW cm2. At excitation fields above this level, the signal is no longer cubic in the excitation irradiance, and the observed electron survival probability dramatically changes, decaying as a single exponential in time.

AB - The electron survival probability following three-photon (9.3 eV total) near-threshold photoionization of neat isooctane is measured with sub- 50 fs time resolution. The measured dynamics are nonexponential in time and are well described by a diffusion-controlled electron-cation recombination model. Excitation-power-dependent studies indicate that the unperturbed three-photon threshold ionization is only observed for pump irradiance below 0.5 TW cm2. At excitation fields above this level, the signal is no longer cubic in the excitation irradiance, and the observed electron survival probability dramatically changes, decaying as a single exponential in time.

UR - http://www.scopus.com/inward/record.url?scp=23944526895&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=23944526895&partnerID=8YFLogxK

U2 - 10.1063/1.1989320

DO - 10.1063/1.1989320

M3 - Article

AN - SCOPUS:23944526895

VL - 123

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 5

M1 - 051105

ER -