Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume 41, Issue 18, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/41/18/185503
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Funding
- National Natural Science Foundation of China [10774101]
- National Ministry of Education Program for Training PhD
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The optical nonlinearity of hybrid nanocrystal molecules composed of semiconductor and metal nanoparticles with a weak probe in a strong control field is investigated theoretically. Excitons in such a hybrid molecule demonstrate novel optical properties due to the coupling between excitons and plasmons. It is shown that Kerr nonlinear coefficients as functions of the detuning of the control field from the exciton frequency and the centre-to-centre distance between the two nanoparticles are greatly enhanced due to exciton-plasmon couplings.
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