Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7941962 | Superlattices and Microstructures | 2016 | 17 Pages |
Abstract
We study the combined effect of hydrostatic pressure and magnetic field on electromagnetically induced transparency in quantum ring. The high flexibility in size and shape of ring makes it possible to fabricate a nearly perfect two-dimensional quantum structure. We also explore the dependence of frequency conversion, measured in terms of third order nonlinear susceptibility Ï(3), on coupling field, hydrostatic pressure and magnetic field. Although, a dip in Ï(3) is observed with the introduction of strong coupling field, it renders the ring structure transparent to generated wave thus effectively enhancing the output of nonlinear frequency conversion process. At a fixed coupling strength, the output can be further enhanced by increasing the magnetic field while it shows an inverse relationship with pressure. These parameters, being externally controlled, provide an easy handle to control the output of quantum ring which can be used as frequency converter in communication networks.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Sukirti Gumber, Monica Gambhir, Pradip Kumar Jha, Man Mohan,