机译:
Centre for Quantum Physics,COMSATS Institute of Information Technology,Islamabad,Pakistan;
Department of Electronics,Quaid-i-Azam University,Islamabad,Pakistan;
Photonics Division,National Institute of Lasers and Optronics,PINSTECH,Nilore,Islamabad,Pakistan;
Department of Electronics,Quaid-i-Azam University,Islamabad,Pakistan;