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  ______   __   __    _____      ___     ______   
 /_   _//  \ \\/ //  /  ___||   / _ \\  |      \\ 
   | ||     \ ` //  | // __    / //\ \\ |  --  // 
  _| ||      | ||   | \\_\ || |  ___  |||  --  \\ 
 /__//       |_||    \____//  |_||  |_|||______// 
 `--`        `-`'     `---`   `-`   `-` `------`

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發送短信 : Self-defocusing in GaP induced by band-gap resonant nonlinear refraction