Abstract
Here we experimentally demonstrated the electromagnetically induced transparency (EIT) and Autler-Townes splitting (ATS) effects in mechanical coupled pendulums. The analogue of EIT and ATS has been studied in mechanical systems and the intrinsic physics between these two phenomena are also been discussed. Exploiting the Akaike Information Criterion, we discern the ATS effect from EIT effect in our experimental results.
Highlights
We experimentally demonstrated the electromagnetically induced transparency (EIT) and AutlerTownes splitting (ATS) effects in mechanical coupled pendulums
As the optical response is revealed by the interference between two different excitation pathways of the system, the Electromagnetically induced transparency (EIT) effect eliminates the absorption of input light which opens a narrow transparency window of the output field
There is a similar effect on the transmission spectrum with EIT called Aulter-Townes splitting (ATS) which is the field-induced splitting of the optical response and exhibits no interference effects[2,3]
Summary
We experimentally demonstrated the electromagnetically induced transparency (EIT) and AutlerTownes splitting (ATS) effects in mechanical coupled pendulums. The analogue of EIT and ATS has been studied in mechanical systems and the intrinsic physics between these two phenomena are been discussed. Exploiting the Akaike Information Criterion, we discern the ATS effect from EIT effect in our experimental results. There is a similar effect on the transmission spectrum with EIT called Aulter-Townes splitting (ATS) which is the field-induced splitting of the optical response and exhibits no interference effects[2,3]. In the past decades, many studies have been carried out to observe the EIT and ATS effects in different systems. The EIT and ATS effects analogues are experimentally observed in mechanically coupled torsion pendulums. By using the Akaike Information Criterion (AIC), we theoretically discerned ATS effect from EIT effect
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