Institution: | 1.Department of Physics, Laser and Fibre Optics Centre,University of Cape Coast,Cape Coast,Ghana;2.Department of Physics,The Pennsylvania State University, Altoona College,Altoona,USA;3.Materials Research Institute,The Pennsylvania State University,University Park,USA;4.National Centre for Mathematical Sciences,Ghana Atomic Energy commission,Kwabenya, Accra,Ghana;5.Department of Mathematics,University of Cape Coast,Cape Coast,Ghana;6.Department of Applied Physics,University for Development Studies,Navorongo,Ghana |