Control of the absorption of a four-level quantum system near a plasmonic nanostructure

2017 ◽  
Vol 95 (19) ◽  
Author(s):  
F. Carreño ◽  
M. A. Antón ◽  
V. Yannopapas ◽  
E. Paspalakis
Keyword(s):  
Quantum System ◽  
Plasmonic Nanostructure

Transient properties of transparency of a quantum system near a plasmonic nanostructure

2014 ◽  
Vol 314 ◽  
pp. 36-40 ◽  
Author(s):  
Sofia Evangelou ◽  
Vassilios Yannopapas ◽  
Emmanuel Paspalakis
Keyword(s):  
Quantum System ◽  
Plasmonic Nanostructure

Phase-dependent optical effects in a four-level quantum system near a plasmonic nanostructure

2013 ◽  
Vol 88 (5) ◽  
Author(s):  
Emmanuel Paspalakis ◽  
Sofia Evangelou ◽  
Vassilios Yannopapas ◽  
Andreas F. Terzis
Keyword(s):  
Quantum System ◽  
Plasmonic Nanostructure ◽  
Optical Effects

scholarly journals Optically induced diffraction gratings based on periodic modulation of linear and nonlinear effects for atom-light coupling quantum systems near plasmonic nanostructures

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Azar Vafafard ◽  
Mostafa Sahrai ◽  
Vahid Siahpoush ◽  
Hamid Reza Hamedi ◽  
Seyyed Hossein Asadpour
Keyword(s):  
Quantum System ◽  
Standing Wave ◽  
Coherent Control ◽  
Nonlinear Effects ◽  
Wave Pattern ◽  
Plasmonic Nanostructures ◽  
Periodic Modulation ◽  
Probe Field ◽  
Plasmonic Nanostructure ◽  
Linear And Nonlinear

Abstract We investigate the quantum linear and nonlinear effects in a novel five-level quantum system placed near a plasmonic nanostructure. Such a quantum scheme contains a double-V-type subsystem interacting with a weak probe field. The double-V-subsystem is then coupled to an excited state by a strong coupling field, which can be a position-dependent standing-wave field. We start by analyzing the first-order linear as well as the third and fifth order nonlinear terms of the probe susceptibility by systematically solving the equations for the matter-fields. When the quantum system is near the plasmonic nanostructure, the coherent control of linear and nonlinear susceptibilities becomes inevitable, leading to vanishing absorption effects and enhancing the nonlinearities. We also show that when the coupling light involves a standing-wave pattern, the periodic modulation of linear and nonlinear spectra results in an efficient scheme for the electromagnetically induced grating (EIG). In particular, the diffraction efficiency is influenced by changing the distance between the quantum system and plasmonic nanostructure. The proposed scheme may find potential applications in future nanoscale photonic devices.

Spatially Structured Optical Effects in a Four‐Level Quantum System Near a Plasmonic Nanostructure

2021 ◽  
pp. 2100117
Author(s):  
Hamid R. Hamedi ◽  
Vassilios Yannopapas ◽  
Emmanuel Paspalakis
Keyword(s):  
Quantum System ◽  
Plasmonic Nanostructure ◽  
Optical Effects

Transparency and slow light in a four-level quantum system near a plasmonic nanostructure

2012 ◽  
Vol 86 (5) ◽  
Author(s):  
Sofia Evangelou ◽  
Vassilios Yannopapas ◽  
Emmanuel Paspalakis
Keyword(s):  
Quantum System ◽  
Slow Light ◽  
Plasmonic Nanostructure

Control of Kerr nonlinearity in a four-level quantum system near a plasmonic nanostructure

2021 ◽  
pp. 114662
Author(s):  
Hamid Reza Hamedi ◽  
Vassilios Yannopapas ◽  
Algirdas Mekys ◽  
Emmanuel Paspalakis
Keyword(s):  
Quantum System ◽  
Kerr Nonlinearity ◽  
Plasmonic Nanostructure
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