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  ______     ___      ______    _____     _  _   
 /_   _//   / _ \\   /_   _//  |  ___||  | \| || 
   | ||    | / \ ||  `-| |,-   | ||__    |  ' || 
  _| ||    | \_/ ||    | ||    | ||__    | .  || 
 /__//      \___//     |_||    |_____||  |_|\_|| 
 `--`       `---`      `-`'    `-----`   `-` -`

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發送短信 : Absorption spectrum of a V-type three-level atom driven by a coherent field