Simultaneous arrival of information in absorbing waveguides

The generation of temporal peak by specific electromagnetic pulses arrived at different position simultaneously in an absorbing waveguide, was investigated. The task of sending information to arrive at different receivers simultaneously was different from the superluminal velocity. The effect was used for triggering several devices all at once at unknown distances from the sender or generally transmit information. The results show that the peak was dominated by above-cutoff frequencies so it is of different origins based on superluminal tunneling.