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

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Text this: A nano-ring resonator based on 2-D hexagonal-lattice photonic crystals