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A Study on Hair Removal Characteristics Using a Long-pulsed Alexandrite Laser

Choi Jin-Young    (Dept. of Electrical and Electronic Engineering, Pusan National University   ); Kim Sang-Gil    (Dept. of Electrical and Electronic Engineering, Pusan National University   ); Park Jong-Woong    (Dept. of Electrical and Electronic Engineering, Pusan National University   ); Park Sung-Joon    (Dept. of Electrical and Electronic Engineering, Pusan National University   ); Kim Hee-Je    (Dept. of Electrical and Electronic Engineering, Pusan National University  );
  • 초록

    Recently, lasers have become widely used throughout the medical treatment field. Several types of lasers have been used for the purpose of hair removal since the Alexandrite laser was approved by the FDA (Food & Drug Administration) for clinical epilation. In this study, a long-pulsed Alexandrite laser system for hair removal adopting a multi-discharge method in which three flash lamps are turned on consecutively was designed and fabricated. This laser system shows the technology that makes it possible to create extended pulse by turning on three flash lamps consecutively. With this technique, the pulse width can be varied from 4ms∼10ms. Then using this Alexandrite laser system with the pulse width 10ms and the beam size 7mm, hair removal was performed on the back portion of a human hand and leg. This study shows that treatment by the long-pulsed Alexandrite laser produces hair removal with no relevant side effects.


  • 주제어

    epilation .   hair removal .   long-pulsed solid laser .   multi-discharge method.  

  • 참고문헌 (14)

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    11. Cindy J. Rogers et al., Hair removal using topical suspension-assisted Q-switched Nd:YAG and long pulsed Alexandrite lasers, A comparative study, Dermatol Surg, 25, pp.844-850, 1999 
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  • 이 논문을 인용한 문헌 (1)

    1. 2005. "" KIEE international transactions on electrophysics and applications, c5(2): 54~57     

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