Hyperbolic damped-wave models for transient light-pulse propagation in scattering media

Sunil Kumar, Kunal Mitra, Yukio Yamada

Research output: Contribution to journalArticle

Abstract

Transient optical transport in highly scattering media such as tissues is usually modeled as a diffusion process in which the energy flux is assumed proportional to the fluence (intensity averaged over all solid angles) gradients. Such models exhibit an infinite speed of propagation of the optical signal, and finite transmission values are predicted even at times smaller than those associated with the propagation of light. If the hyperbolic, or wave, nature of the complete transient radiative transfer equation is retained, the resulting models do not exhibit such drawbacks. Additionally, the hyperbolic equations converge to the solution at a faster rate, which makes them very attractive for numerical applications in time-resolved optical tomography.

Original languageEnglish (US)
Pages (from-to)3372-3378
Number of pages7
JournalApplied Optics
Volume35
Issue number19
StatePublished - Jul 1 1996

Fingerprint

Wave propagation
Scattering
propagation
Optical tomography
Radiative transfer
pulses
scattering
radiative transfer
optical communication
fluence
tomography
Tissue
Fluxes
gradients
energy

Keywords

  • Optical tomography
  • Pulsed lasers
  • Scattering media

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Hyperbolic damped-wave models for transient light-pulse propagation in scattering media. / Kumar, Sunil; Mitra, Kunal; Yamada, Yukio.

In: Applied Optics, Vol. 35, No. 19, 01.07.1996, p. 3372-3378.

Research output: Contribution to journalArticle

Kumar, Sunil ; Mitra, Kunal ; Yamada, Yukio. / Hyperbolic damped-wave models for transient light-pulse propagation in scattering media. In: Applied Optics. 1996 ; Vol. 35, No. 19. pp. 3372-3378.
@article{59406447952848f8bd87921a1eebf0d4,
title = "Hyperbolic damped-wave models for transient light-pulse propagation in scattering media",
abstract = "Transient optical transport in highly scattering media such as tissues is usually modeled as a diffusion process in which the energy flux is assumed proportional to the fluence (intensity averaged over all solid angles) gradients. Such models exhibit an infinite speed of propagation of the optical signal, and finite transmission values are predicted even at times smaller than those associated with the propagation of light. If the hyperbolic, or wave, nature of the complete transient radiative transfer equation is retained, the resulting models do not exhibit such drawbacks. Additionally, the hyperbolic equations converge to the solution at a faster rate, which makes them very attractive for numerical applications in time-resolved optical tomography.",
keywords = "Optical tomography, Pulsed lasers, Scattering media",
author = "Sunil Kumar and Kunal Mitra and Yukio Yamada",
year = "1996",
month = "7",
day = "1",
language = "English (US)",
volume = "35",
pages = "3372--3378",
journal = "Applied Optics",
issn = "0003-6935",
publisher = "The Optical Society",
number = "19",

}

TY - JOUR

T1 - Hyperbolic damped-wave models for transient light-pulse propagation in scattering media

AU - Kumar, Sunil

AU - Mitra, Kunal

AU - Yamada, Yukio

PY - 1996/7/1

Y1 - 1996/7/1

N2 - Transient optical transport in highly scattering media such as tissues is usually modeled as a diffusion process in which the energy flux is assumed proportional to the fluence (intensity averaged over all solid angles) gradients. Such models exhibit an infinite speed of propagation of the optical signal, and finite transmission values are predicted even at times smaller than those associated with the propagation of light. If the hyperbolic, or wave, nature of the complete transient radiative transfer equation is retained, the resulting models do not exhibit such drawbacks. Additionally, the hyperbolic equations converge to the solution at a faster rate, which makes them very attractive for numerical applications in time-resolved optical tomography.

AB - Transient optical transport in highly scattering media such as tissues is usually modeled as a diffusion process in which the energy flux is assumed proportional to the fluence (intensity averaged over all solid angles) gradients. Such models exhibit an infinite speed of propagation of the optical signal, and finite transmission values are predicted even at times smaller than those associated with the propagation of light. If the hyperbolic, or wave, nature of the complete transient radiative transfer equation is retained, the resulting models do not exhibit such drawbacks. Additionally, the hyperbolic equations converge to the solution at a faster rate, which makes them very attractive for numerical applications in time-resolved optical tomography.

KW - Optical tomography

KW - Pulsed lasers

KW - Scattering media

UR - http://www.scopus.com/inward/record.url?scp=0000006640&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000006640&partnerID=8YFLogxK

M3 - Article

VL - 35

SP - 3372

EP - 3378

JO - Applied Optics

JF - Applied Optics

SN - 0003-6935

IS - 19

ER -