Scleral heating with pulsed mid-infrared lasers and temperature-dependent absorption coefficient

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

1 Citation (Scopus)

Abstract

We studied the effect of the temperature-dependence of the scleral absorption coefficient on the accuracy of thermal models of laser-induced scleral heating. The scleral surface temperature increase during pulsed Holmium:YAG and Thulium:YAG laser irradiation was calculated with a constant (static model) and temperature-dependent (dynamic model) absorption coefficient. The 1D heat equation was solved with the assumption that thermal diffusion during the pulse is negligible. We found that the dynamic model yields lower temperatures than the static model. For the sclera, the overestimation becomes significant when the surface temperature is above 70°C. This study shows that the temperature-dependence of the absorption coefficient must be taken into account to accurately predict laser-induced scleral or corneal heating.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages55-58
Number of pages4
Volume2971
DOIs
StatePublished - 1997
Externally publishedYes
EventOphthalmic Technologies VII - San Jose, CA, United States
Duration: Feb 8 1997Feb 8 1997

Other

OtherOphthalmic Technologies VII
CountryUnited States
CitySan Jose, CA
Period2/8/972/8/97

Fingerprint

Infrared lasers
Absorption Coefficient
Mid-infrared
Pulsed lasers
infrared lasers
Heating
static models
absorptivity
Laser
Temperature Dependence
dynamic models
surface temperature
heating
Dependent
Dynamic Model
Thulium
Thermal Diffusion
temperature dependence
Thermal Model
thulium

Keywords

  • Absorption coefficient
  • Heating
  • Laser
  • Laser scleral buckling
  • Laser thermokeratoplasty
  • Mid-infrard lasers
  • Sclera
  • Temperature
  • Thermal model

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Manns, F., & Parel, J-M. A. (1997). Scleral heating with pulsed mid-infrared lasers and temperature-dependent absorption coefficient. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2971, pp. 55-58) https://doi.org/10.1117/12.275124

Scleral heating with pulsed mid-infrared lasers and temperature-dependent absorption coefficient. / Manns, Fabrice; Parel, Jean-Marie A.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2971 1997. p. 55-58.

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

Manns, F & Parel, J-MA 1997, Scleral heating with pulsed mid-infrared lasers and temperature-dependent absorption coefficient. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 2971, pp. 55-58, Ophthalmic Technologies VII, San Jose, CA, United States, 2/8/97. https://doi.org/10.1117/12.275124
Manns F, Parel J-MA. Scleral heating with pulsed mid-infrared lasers and temperature-dependent absorption coefficient. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2971. 1997. p. 55-58 https://doi.org/10.1117/12.275124
Manns, Fabrice ; Parel, Jean-Marie A. / Scleral heating with pulsed mid-infrared lasers and temperature-dependent absorption coefficient. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2971 1997. pp. 55-58
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