أرسل هذا في رسالة قصيرة: Highly sensitive sensor based on 4×4 multimode interference coupler with microring resonators

           __   __   _    _    _    _             
    ___    \ \\/ // | \  / || | || | ||     ___   
   /   ||   \ ` //  |  \/  || | || | ||    /   || 
  | [] ||    | ||   | .  . || | \\_/ ||   | [] || 
   \__ ||    |_||   |_|\/|_||  \____//     \__ || 
    -|_||    `-`'   `-`  `-`    `---`       -|_|| 
     `-`                                     `-`