# Quantum Photonic Estimation of Refractive Index in 2-methyl-4-nitroaniline ElectroOptic Crystal

## TL;DR

This paper introduces a quantum photonic model based on Bohmian mechanics to theoretically estimate the refractive indices of the organic electro-optic crystal MNA, achieving results within 6% of experimental values.

## Contribution

It presents a novel quantum photonic approach for estimating the refractive index of MNA, incorporating electron-photon interactions and Monte Carlo simulations.

## Key findings

- Estimated refractive indices closely match experimental data with less than 6% error.
- The model successfully predicts quarter wave thickness for MNA crystal.
- Quantum photonic calculations provide a new method for optical property estimation.

## Abstract

In this paper, we will try to explain the method of theoretical estimation of index of refraction of an assymetric organic Electro-Optic compound called MNA or 2,methyl,4,nitro-aniline. It is transparent in a wide range between 500nm-2000nm wavelengths. We assume a Quantum Photonic Model which is based on Bohmian Mechanics for Electron-Photon interactions. The photons interact with pi-electrons of MNA molecules, when they pass in the atomic layers. During this electron-photon interaction the photon is temporarily annihilated and all of its energy will be delivered into electron in orbit as kinetic energy in every layer. After a short while the photon will be recreated. With reasonable and precise calculations of these delays we may estimate theoretically Ordinary and Extraordinary refractive indices of MNA compound. Quarter wave thickness for MNA crystal has also been estimated according to phase retardation simulations. Attained results from this Quantum Photonic model - Montecarlo time domain method, is estimated to be very close to experimental quantities with errors always less than 6 percents.

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Source: https://tomesphere.com/paper/1904.10842