[1
]Nanophotonics and Plasmonics Laboratory, School of Basic Sciences, Indian Institute
of Technology Bhubaneswar, Bhubaneswar, Odisha, India
[2
]Shandong Key Laboratory of Optical Communication Science and Technology, School of
Physics Science and Information Technology, Liaocheng University, Liaocheng, China
[3
]I3N and Physics Department, University of Aveiro, Aveiro, Portugal
[4
]Homi Bhabha National Institute, Anushaktinagar, Mumbai, India