Text this: Terahertz spectroscopy study of the topological insulator Bi2Se3 thin film

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