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Controlling the Pump-Probe Optical Response in Asymmetric Tunneling-Controlled Double Quantum Dot Molecule—Metal Nanoparticle Hybrids
| Content Provider | MDPI |
|---|---|
| Author | Kosionis, Spyridon G. Paspalakis, Emmanuel |
| Copyright Year | 2021 |
| Description | In the present work, we investigate the modified nonlinear pump-probe optical properties due to the excitonic–plasmonic interaction of a double semiconductor quantum dot (SQD) molecule coupled to a metal nanoparticle (MNP). More specifically, we study the absorption and the dispersion spectra of a weak electromagnetic field in a hybrid structure with two counterparts, a molecule of two coupled SQDs, and a spherical MNP driven by a field of high intensity. We solve the relevant density matrix equations, calculate the first-order optical susceptibility of the probe field in the strong pumping regime, and investigate the way in which the distance between the two counterparts modifies the optical response, for a variety of values of the physical constants of the system, including the pump-field detuning, the tunnelling rate, and the energy separation gap associated with the excited states of the coupled SQDs. |
| Starting Page | 11714 |
| e-ISSN | 20763417 |
| DOI | 10.3390/app112411714 |
| Journal | Applied Sciences |
| Issue Number | 24 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-09 |
| Access Restriction | Open |
| Subject Keyword | Applied Sciences Coupled Quantum Dots Equations of Motion Hybrid Nanostructure Metal Nanoparticle Optical Susceptibility Pump-probe Response |
| Content Type | Text |
| Resource Type | Article |
