期刊
NANOMATERIALS
卷 11, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/nano11071859
关键词
semiconductor quantum dots; biexciton; plasmonics; quantum control
类别
资金
- European Union (European Social Fund-ESF) through the Operational Programme Human Resources Development, Education and Lifelong Learning [MIS-5000432]
- European Union-European Regional Development Fund via the General Secretariat for Research and Technology bilateral Greek-Russian Science and Technology collaboration project on Quantum Technologies
- Research Committee of the University of Patras
In this study, a hybrid nanostructure composed of a semiconductor quantum dot coupled to a metallic nanoparticle was investigated for the efficient creation of biexciton state using linearly polarized laser pulses. Numerical simulations showed that a simple on-off-on pulse-sequence can efficiently prepare the biexciton state even in the presence of the nanoparticle, for various interparticle distances and biexciton energy shifts. The pulse durations in the sequence were determined by solving a transcendental equation.
We consider a hybrid nanostructure composed by semiconductor quantum dot coupled to a metallic nanoparticle and investigate the efficient creation of biexciton state in the quantum dot, when starting from the ground state and using linearly polarized laser pulses with on-off modulation. With numerical simulations of the coupled system density matrix equations, we show that a simple on-off-on pulse-sequence, previously derived for the case of an isolated quantum dot, can efficiently prepare the biexciton state even in the presence of the nanoparticle, for various interparticle distances and biexciton energy shifts. The pulse durations in the sequence are obtained from the solution of a transcendental equation.
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