Rabi broadening of transient resonance raman spectra of deoxy hemoglobin

R. G. Alden; M. R. Ondrias; S. Courtney; E. W. Findsen; J. M. Friedman

doi:10.1364/JOSAB.7.001579

Rabi broadening of transient resonance raman spectra of deoxy hemoglobin

R. G. Alden, M. R. Ondrias, S. Courtney, E. W. Findsen, J. M. Friedman

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Abstract

The power-dependent behavior of the resonance Raman spectra of deoxy hemoglobin was studied by using ˜30-psec laser pulses. The linewidth of a Raman active mode that is sensitive to porphyrin π-electron density, V₄, broadens asymmetrically as a function of laser fluence. Several possible origins of this phenomenon are examined, including the presence of a transient photoproduct and a nonlinear change in the resonance Raman scattering process through Rabi broadening. Our data are consistent with the second possibility and can be qualitatively modeled in simulations that se realistic values of T₁ and T₂ for the heme Soret electronic transition.

Original language	English (US)
Pages (from-to)	1579-1585
Number of pages	7
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	7
Issue number	8
DOIs	https://doi.org/10.1364/JOSAB.7.001579
State	Published - Aug 1990
Externally published	Yes

ASJC Scopus subject areas

Statistical and Nonlinear Physics
Atomic and Molecular Physics, and Optics

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title = "Rabi broadening of transient resonance raman spectra of deoxy hemoglobin",

abstract = "The power-dependent behavior of the resonance Raman spectra of deoxy hemoglobin was studied by using ˜30-psec laser pulses. The linewidth of a Raman active mode that is sensitive to porphyrin π-electron density, V4, broadens asymmetrically as a function of laser fluence. Several possible origins of this phenomenon are examined, including the presence of a transient photoproduct and a nonlinear change in the resonance Raman scattering process through Rabi broadening. Our data are consistent with the second possibility and can be qualitatively modeled in simulations that se realistic values of T1 and T2 for the heme Soret electronic transition.",

author = "Alden, {R. G.} and Ondrias, {M. R.} and S. Courtney and Findsen, {E. W.} and Friedman, {J. M.}",

year = "1990",

month = aug,

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journal = "Journal of the Optical Society of America B: Optical Physics",

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T1 - Rabi broadening of transient resonance raman spectra of deoxy hemoglobin

AU - Alden, R. G.

AU - Ondrias, M. R.

AU - Courtney, S.

AU - Findsen, E. W.

AU - Friedman, J. M.

PY - 1990/8

Y1 - 1990/8

N2 - The power-dependent behavior of the resonance Raman spectra of deoxy hemoglobin was studied by using ˜30-psec laser pulses. The linewidth of a Raman active mode that is sensitive to porphyrin π-electron density, V4, broadens asymmetrically as a function of laser fluence. Several possible origins of this phenomenon are examined, including the presence of a transient photoproduct and a nonlinear change in the resonance Raman scattering process through Rabi broadening. Our data are consistent with the second possibility and can be qualitatively modeled in simulations that se realistic values of T1 and T2 for the heme Soret electronic transition.

AB - The power-dependent behavior of the resonance Raman spectra of deoxy hemoglobin was studied by using ˜30-psec laser pulses. The linewidth of a Raman active mode that is sensitive to porphyrin π-electron density, V4, broadens asymmetrically as a function of laser fluence. Several possible origins of this phenomenon are examined, including the presence of a transient photoproduct and a nonlinear change in the resonance Raman scattering process through Rabi broadening. Our data are consistent with the second possibility and can be qualitatively modeled in simulations that se realistic values of T1 and T2 for the heme Soret electronic transition.

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JO - Journal of the Optical Society of America B: Optical Physics

JF - Journal of the Optical Society of America B: Optical Physics

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Rabi broadening of transient resonance raman spectra of deoxy hemoglobin

Abstract

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