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Proceedings Article

Simultaneous irradiation of Er:YAG and Ho:YAG lasers for efficient ablation of hard tissues

[+] Author Affiliations
Tomonori Watanabe, Yuji Matsuura

Tohoku Univ. (Japan)

Katsumasa Iwai

Sendai National College of Technology (Japan)

Proc. SPIE 7173, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications IX, 71730R (February 20, 2009); doi:10.1117/12.807910
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From Conference Volume 7173

  • Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications IX
  • Israel Gannot
  • San Jose, CA | January 24, 2009

abstract

Hard tissues are irradiated with combined beam of Er:YAG and Ho:YAG lasers to achieve highly efficient ablation with lower laser power. We controlled the delay time between pulses of the two lasers and irradiated alumina ceramic balls that are used as hard tissue samples. By optimizing the delay time, the combined laser beam provides 40% higher perforation depth compared with the result with independent radiation of Er:YAG or Ho:YAG laser. The ablation mechanism are observed and investigated by using an ultra-high-speed camera and infrared thermography camera.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Tomonori Watanabe ; Katsumasa Iwai and Yuji Matsuura
"Simultaneous irradiation of Er:YAG and Ho:YAG lasers for efficient ablation of hard tissues", Proc. SPIE 7173, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications IX, 71730R (February 20, 2009); doi:10.1117/12.807910; http://dx.doi.org/10.1117/12.807910


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