Linear optical properties of organic microcavity polaritons with
non-Markovian Quantum State Diffusion
- URL: http://arxiv.org/abs/2310.19162v1
- Date: Sun, 29 Oct 2023 21:25:35 GMT
- Title: Linear optical properties of organic microcavity polaritons with
non-Markovian Quantum State Diffusion
- Authors: Timo Lepp\"al\"a, Ahmed Gaber Abdelmagid, Hassan A. Qureshi,
Konstantinos S. Daskalakis, Kimmo Luoma
- Abstract summary: Hybridisation of the cavity modes and the excitons to polariton states determine the linear optical properties of organic semiconductors in microcavities.
We compute the refractive index for such system using the Holstein-Tavis-Cummings model and determine then the linear optical properties using the transfer matrix method.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Hybridisation of the cavity modes and the excitons to polariton states
together with the coupling to the vibrational modes determine the linear
optical properties of organic semiconductors in microcavities. In this article
we compute the refractive index for such system using the
Holstein-Tavis-Cummings model and determine then the linear optical properties
using the transfer matrix method. We first extract the parameters for the
exciton in our model from fitting to experimentally measured absorption of a
2,7-bis [9,9-di(4-methylphenyl)-fluoren-2-yl]-9,9-di(4-methylphenyl) fluorene
(TDAF) molecular thin film. Then we compute the reflectivity of such a thin
film in a metal clad microcavity system by including the dispersive microcavity
mode to the model. We compute susceptibility of the model systems evolving just
a single state vector by using the non-Markovian Quantum State Diffusion. The
computed location and height of the lower and upper polaritons agree with the
experiment within the estimated errorbars for small angles ($\leq 30^\circ$).
For larger angles the location of the polariton resonances are within the
estimated error.
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