1. Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), International Centre for Materials Science (ICMS), Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
2. Atomic and Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
3. Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India