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 _____       ___     __   __    _____    _    _   
|  __ \\    / _ \\   \ \\/ //  |  ___|| | \  / || 
| |  \ ||  / //\ \\   \   //   | ||__   |  \/  || 
| |__/ || |  ___  ||  / . \\   | ||__   | .  . || 
|_____//  |_||  |_|| /_//\_\\  |_____|| |_|\/|_|| 
 -----`   `-`   `-`  `-`  --`  `-----`  `-`  `-`

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發送短信 : Spontaneous emission spectrum from a V-type three-level atom in a double-band photonic crystal