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

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Text this: Ultrafast all-optical switching in one-dimensional photonic crystal with two defects