فهرست مقالات Preecha Yupapin مقاله 1 - Butterfly-like phase shift: a novel gauge for critical coupling of add–drop resonator 10.1007/s40094-018-0291-2 Mahdi Bahadoran Preecha Yupapin Journal of Theoretical and Applied Physics , شماره 1 , سال 0 , بهار 2018