Study On Exciton Polaritons In Single Organic TC Nanowire

In today’s world,miniaturized electronic products are gaining more and more popularity.The bending losses of optical waveguides,which play an important role in the miniaturization electronic products,will largely limit miniaturization level of electronic products.The exciton polaritons arising from the strong coupling of exciton and photon show special transmission characteristics in a single organic TC nanowire,which can enhance the miniaturization level of electronic products,thus making exciton polaritons a research hotspot.This paper mainly studies the characteristics of exciton polaritons in the TC nanowire.Firstly,a single organic TC nanowire was prepared by molecular self-assembly method,and the structural parameters were obtained by characterizing the nanowire.Single nanowire prepared was excited in self-built local and non-local fluorescent light paths,to obtain fluorescence spectra and establish theoretical models respectively.Analyzing the effective refractive index of the nanowire,the paper experimentally confirmed the single organic TC nanowire could excite exciton polaritons.Next,to theoretically prove that a single organic TC nanowire can excite exciton polaritons,this paper conduct numerical simulation of the non-local fluorescence spectrum and internal electric field distribution of TC nanowires with different lengths and widths to obtain transmission characteristics of exciton polaritons in the nanowire.Calculate the curve that F factor and Q factor change with wavelength to analyze the transmission loss characteristics of exciton polaritons in the nanowire.The numerical simulation shows the reflection spectrum of a single organic TC nanowire,so this paper theoretically proves that the exciton polaritons can achieve stable long-range transmission in the nanowire.Finally,this paper used the local field enhancement effect of plasmon on the metal surface to study the enhancement effect of exciton polaritons generated in the TC nanowire.Theoretical study of the enhancement effect of localized field of gold nanoparticles on exciton polaritons under different shapes and different modifications will provide a preliminary reference for its future application in miniaturization of electronic products.