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year 27, Issue 2 (ICOP & ICPET 2021 2021)
ICOP & ICPET _ INPC _ ICOFS 2021, 27(2): 253-256 |
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Rostami M, Babaei F. Tuning surface plasmon-polariton and exciton coupling via thickness dependent of plasmonic layer in a trilayer structure. ICOP & ICPET _ INPC _ ICOFS 2021; 27 (2) :253-256
URL: http://opsi.ir/article-1-2353-en.html
URL: http://opsi.ir/article-1-2353-en.html
1- Department of Physics, University of Qom, Qom
Abstract: (520 Views)
In this paper, tuning surface plasmon-polariton and exciton coupling via thickness dependent of plasmonic layer in a trilayer structure has been studied theoretically in Kretschmann configuration. Energy spectra of plexcitonic branches as a function of detuning frequency indicates to the anticrossing behavior of plexciton modes at different thicknesses of plasmonic medium. By tuning the thickness of metal from 30 to 50nm, the coupling strength between plasmon and exciton changed from the intermediate range to strong range. in the forming plasmon–exciton hybrid modes, different linewidths of their excitation spectra and the abilities to couple with external field, provide different methods for controlling optical properties of the coupled systems and strong coupling plays an important role in the design of optoelectronic systems.
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