Optical Response of Strongly Coupled Quantum Dot−Metal Nanoparticle Systems: Double Peaked Fano Structure and Bistability

Nano Letters ◽  
2008 ◽  
Vol 8 (7) ◽  
pp. 2106-2111 ◽  
Author(s):  
Ryan D. Artuso ◽  
Garnett W. Bryant
Keyword(s):  
Quantum Dot ◽  
Optical Response ◽  
Metal Nanoparticle ◽  
Strongly Coupled

Optical response of a quantum dot–metal nanoparticle hybrid interacting with a weak probe field

2012 ◽  
Vol 25 (4) ◽  
pp. 045304 ◽  
Author(s):  
Spyridon G Kosionis ◽  
Andreas F Terzis ◽  
Seyed M Sadeghi ◽  
Emmanuel Paspalakis
Keyword(s):  
Quantum Dot ◽  
Optical Response ◽  
Metal Nanoparticle ◽  
Probe Field

scholarly journals Controlling the Pump-Probe Optical Response in Asymmetric Tunneling-Controlled Double Quantum Dot Molecule—Metal Nanoparticle Hybrids

2021 ◽  
Vol 11 (24) ◽  
pp. 11714
Author(s):  
Spyridon G. Kosionis ◽  
Emmanuel Paspalakis
Keyword(s):  
Quantum Dot ◽  
Optical Response ◽  
Hybrid Structure ◽  
Metal Nanoparticle ◽  
Energy Separation ◽  
Double Quantum ◽  
Probe Field ◽  
Pump Probe ◽  
First Order ◽  
Optical Susceptibility

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.

scholarly journals Instabilities in the optical response of a semiconductor quantum dot—metal nanoparticle heterodimer: self-oscillations and chaos

2016 ◽  
Vol 19 (1) ◽  
pp. 015004 ◽  
Author(s):  
Bintoro S Nugroho ◽  
Alexander A Iskandar ◽  
Victor A Malyshev ◽  
Jasper Knoester
Keyword(s):  
Quantum Dot ◽  
Optical Response ◽  
Metal Nanoparticle ◽  
Semiconductor Quantum Dot
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