Study of the ArF excimer laser ablation of the cornea

Zs Bor, B. Hopp, B. Racz, G. Szabo, Zs Marton, F. Vincze, I. Ratkay, J. Mohay, I. Suveges, A. Fust

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

Abstract

In this paper studies of ArF excimer laser ablation of the cornea (in vitro pig) are presented. We investigated the dependence of the etching rate (r) on the incident fluence (Φ) and the etching depth (l) on the number of shots (n). It was found that r α 1n(Φ) and l α n. Ultrafast laser based stroboscopic photographic arrangement was constructed with a temporal resolution of 1 ns. It was found that the velocity of the shock wave generated by the impact of the excimer laser pulse can be as high as 7000 m/s. The ejection of the ablation plume was also observed and the velocity of the plume-front was found to be higher than 600 m/s. The recoil forces of the plume generate a surface wave on the surface of the eye having approximately 5 m/s maximum velocity. The amplitude of the surface wave can be as high as 0.15-0.3 mm.

Original languageEnglish
Title of host publicationOptics as a Key to High Technology
EditorsGy Akos, T. Lippenyi, G. Lupkovics, A. Podmaniczky
PublisherPubl by Society of Photo-Optical Instrumentation Engineers
Pages902-904
Number of pages3
Editionpt 2
ISBN (Print)0819412309
Publication statusPublished - Dec 1 1993
EventProceedings of the 16th Congress of the International Commission for Optics - Budapest, Hung
Duration: Aug 9 1993Aug 13 1993

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Numberpt 2
Volume1983
ISSN (Print)0277-786X

Other

OtherProceedings of the 16th Congress of the International Commission for Optics
CityBudapest, Hung
Period8/9/938/13/93

ASJC Scopus subject areas

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

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  • Cite this

    Bor, Z., Hopp, B., Racz, B., Szabo, G., Marton, Z., Vincze, F., Ratkay, I., Mohay, J., Suveges, I., & Fust, A. (1993). Study of the ArF excimer laser ablation of the cornea. In G. Akos, T. Lippenyi, G. Lupkovics, & A. Podmaniczky (Eds.), Optics as a Key to High Technology (pt 2 ed., pp. 902-904). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1983, No. pt 2). Publ by Society of Photo-Optical Instrumentation Engineers.