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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