Experimental Investigation Of Electromagnetically Induced Transparency Like Effect In RLC Circuits

Electromagnetically induced transparency (EIT) is generated by quantum interference in the interaction light and atomic systems,by the interaction between electromagnetic fields and the absorbing medium,which to make a change for the media to a light absorption coefficient, so that transmittance increases no longer to be absorbed.However, in many classical physical system,classic interference can also be observed the EIT-like effect.These phenomena are not just for the simulation of the atomic system electromagnetically induced transparency phenomenon, They themselves have a very large significance.RLC circuits may used to simulate the phenomenon of Electromagnetically Induced Transparency (EIT) in atomic vapors. In Capacitively coupled RLC circuit, the EIT-like effect is studied systematically. The EIT-like effect is observed in capacitor coupled RLC circuits due to the classical destructive interference, which is studied by examining the frequency dependence of the power transferred from the external generator to the resonant first loop. Firstly,We investigated the effect of coupling strength and frequency detuning on EIT-like effect in two mesh circuits.Secondly, which used to analog three-level atom in the A configuration and in three mesh circuits which used to analog four-level atom in the inverted-Y and N configuration.The advantage of this circuit can study the existence of interference between the series circuit.In the atomic system,by quantum interferenceN four-level system can be large Kerr nonlinearity,the research has a important significance.The simulation Study to this system, which to cause more intuitive understanding of the phenomenon of quantum interference in atomic systems.