1. Photonics and Nanotechnology Section, Atomic and Molecular Physics Division, Bhabha Atomic Research Centre Facility; Visakhapatnam 530012 India
2. Homi Bhabha National Institute; Mumbai 400094 India
3. Materials Science Group, Indira Gandhi Centre for Atomic Research; Kalpakkam 603102 Tamil Nadu India
4. Institute of Physics; Sachivalaya Marg Bhubaneswar 751005 Odisha India
5. Atomic and Molecular Physics Division, Bhabha Atomic Research Centre; Mumbai 400085 India