TY - BOOK AU - Ghosh ,Tapas AU - Jana ,Paresh Chandra AU - Gangopadhyay ,Pranabendu ED - Vidyasagar University , TI - Theoretical estimation of refractive index profiles of continuous -wave ultra-violet written wave guides in lithium nibate and design of a directional coupler based on this waveguide U1 - 621.381331 21st PY - 2018/// CY - Midnapore PB - Vidyasagar University KW - Wave guide KW - Microwave electronics-component of devices N1 - Includes references ER -