| Affiliation: | 1. School of Physical Science and Technology, Soochow University, Suzhou 215006, China;2. Department of Physics and Information Engineering, Huaihua University, Huaihua 418008, China;1. School of Physical Science and Technology, Soochow University, Suzhou 215006, China;2. Department of Physics and Information Engineering, Huaihua University, Huaihua 418008, China;3. School of Sciences, Zhejiang Agriculture and Forestry University, Lin?an 311300, China;1. Department of ECE, National College of Engineering, Tirunelveli, Tamilnadu 627151, India;2. Department of Physics, Chikkanna Government Arts College, Tirupur, Tamilnadu 641602, India;3. Department of Physics, University College of Engineering, Nagercoil, Tamilnadu 629004, India;4. Department of ECE, University College of Engineering, Nagercoil, Tamilnadu 629004, India |
