Temperature monitoring by infrared radiation measurements during ArF excimer laser ablation with cornea

Miya Ishihara, Tsunenori Arai, Shunichi Sato, Hironori Nakano, Minoru Obara, Makoto Kikuchi

研究成果: Conference article査読

2 被引用数 (Scopus)


We measured infrared thermal radiation from porcine cornea during various fluences ArF excimer laser ablations with 1 μs rise time. To obtain absolute temperature by means of Stefan-Boltzman law of radiation, we carried out a collection efficiency and detective sensitivity by a pre-experiment using panel heater. We measured the time course of the thermal radiation intensity with various laser fluences. We studied the relation between the peak cornea temperature during the ablation and irradiation fluences. We found the ablation situations, i.e., sub-ablation threshold, normal thermal ablation, and over-heated ablation, may be judged by both of the measured temperature transient waveformes and peak temperature. The boundary fluences corresponding to normal thermal ablation were 90 and 160 mJ/cm2. Our fast remote temperature monitoring during cornea ablation might be useful to control ablation quality/quantity of the cornea ArF laser ablation, that is PRK.

ジャーナルProceedings of SPIE - The International Society for Optical Engineering
出版ステータスPublished - 1999
イベントProceedings of the 1999 Laser-Tissue Interaction X: Photochemical, Photothermal, and Photomechanical - San Jose, CA, USA
継続期間: 1999 1月 241999 1月 27

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学


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