Thermally induced refractive nonlinearity in scattering media

Wei Chiang Lin, James P. Wicksted, Ashley J. Welch, Massoud Motamedi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

In this study, the Z-scan technique was used to examine the thermal lens effect in turbid media containing micro-spheres suspended in water. The scattering coefficients of the turbid media were varied from 10 to 100 cm-1. The experimental results suggested that the nonlinear changes in the refractive index of the scattering medium induced by high power laser heating could significantly impact the propagation of laser beam through the scattering medium. Presence of thermally-induced nonlinear changes in refractive index of tissue during high power laser irradiation may significantly alter the distribution of laser light in tissue during laser therapy.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Place of PublicationBellingham, WA, United States
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages76-83
Number of pages8
Volume2975
ISBN (Print)0819423866
StatePublished - 1997
Externally publishedYes
EventLaser-Tissue Interaction VIII - San Jose, CA, USA
Duration: Feb 9 1997Feb 12 1997

Other

OtherLaser-Tissue Interaction VIII
CitySan Jose, CA, USA
Period2/9/972/12/97

Fingerprint

nonlinearity
High power lasers
Scattering
Refractive index
scattering
high power lasers
Tissue
Laser heating
Lasers
Laser beam effects
refractivity
Laser beams
thermal lensing
laser heating
Lenses
scattering coefficients
lasers
therapy
laser beams
irradiation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Lin, W. C., Wicksted, J. P., Welch, A. J., & Motamedi, M. (1997). Thermally induced refractive nonlinearity in scattering media. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2975, pp. 76-83). Bellingham, WA, United States: Society of Photo-Optical Instrumentation Engineers.

Thermally induced refractive nonlinearity in scattering media. / Lin, Wei Chiang; Wicksted, James P.; Welch, Ashley J.; Motamedi, Massoud.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2975 Bellingham, WA, United States : Society of Photo-Optical Instrumentation Engineers, 1997. p. 76-83.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lin, WC, Wicksted, JP, Welch, AJ & Motamedi, M 1997, Thermally induced refractive nonlinearity in scattering media. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 2975, Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, United States, pp. 76-83, Laser-Tissue Interaction VIII, San Jose, CA, USA, 2/9/97.
Lin WC, Wicksted JP, Welch AJ, Motamedi M. Thermally induced refractive nonlinearity in scattering media. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2975. Bellingham, WA, United States: Society of Photo-Optical Instrumentation Engineers. 1997. p. 76-83
Lin, Wei Chiang ; Wicksted, James P. ; Welch, Ashley J. ; Motamedi, Massoud. / Thermally induced refractive nonlinearity in scattering media. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2975 Bellingham, WA, United States : Society of Photo-Optical Instrumentation Engineers, 1997. pp. 76-83
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