https://doi.org/10.1140/epjp/s13360-022-03503-y
Regular Article
Nonlinear optical properties in a hybrid system composed of metal nanoparticles and Woods-Saxon quantum wells
1
School of Physics and Materials Science, Guangzhou University, 510006, Guangzhou, China
2
Laboratory of Photonic Information Technology, South China Normal University, 510631, Guangzhou, China
3
School of Optoelectronic Engineering, Guangdong Polytechnic Normal University, 510665, Guangzhou, China
Received:
21
September
2022
Accepted:
15
November
2022
Published online:
27
November
2022
The Woods-Saxon potential has a vital influence in nuclear physics, which is very flexible because different systems can be simulated by adjusting the parameters of Woods-Saxon potential. Here, employing Kramers–Henneberger transformation, the potential energy expression of Woods-Saxon quantum wells (WSQWs) under the action of terahertz laser field (TLF) is derived. Utilizing quantum theory, we revealed the effect of localized surface plasmons (LSPs) in metal nanoparticle on the optical absorption coefficients (OACs) and refraction index changes (RICs) of WSQWs with TLF applied. In contrast to the case without metal nanoparticle, the total OACs as well as total RICs show a redshift for peak positions and a reduction in peak values. Moreover, the total OACs and total RICs can be flexibly modulated by changing the radius of metal nanoparticle and the distance between metal nanoparticle and WSQWs. Besides, it is also revealed that the influences of LSPs on the total OACs and total RICs are different with different TLF applied.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
