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

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Text this: Semiconductor quantum well irradiated by a two-mode electromagnetic field as a terahertz emitter