1. Nonlinear Optical Materials Laboratory, School of Physics, Bharathidasan University, Tiruchirappalli 620024, Tamil Nadu, India
2. Department of Chemistry, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli 620024, Tamil Nadu, India
3. Department of Physics, Gandhigram Rural Institute-Deemed University, Gandhigram, Dindigul 624302, Tamil Nadu, India
4. Department of Physics, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India
5. Belfast Academy, 2 Queens Road, Belfast 1100, United Kingdom