scatt/examples/NatureComm-2020-Plasmon–emitter_interactions_at_the_nanoscale/suppFig5.py

#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
from matplotlib import pyplot as plt
import cmath
from scattnlay import mesomie, mie
import numpy as np

from_disk = np.loadtxt('rs4-d_perp.txt')
min_lim = 0.4
max_lim = 0.8
omega_ratio = from_disk[0, :]
d_perp = from_disk[1, :] + 1j*from_disk[2, :]

c = 299792458  # m/s
h_reduced = 6.5821e-16  # eV s
omega_p = 5.9  # eV
gamma = 0.1  # eV
eps_d = 1


def eps_m(omega):
    return 1 - omega_p * omega_p / (omega*omega + 1j*omega*gamma)


Rs = [2.5, 5, 10, 25]
R = 5

Qext = []
Qext_mie = []
om_rat_plot = []
# for om_rat in omega_ratio:
for i in range(len(omega_ratio)):
    om_rat = omega_ratio[i]
    if om_rat < min_lim or om_rat > max_lim:
        continue
    omega = om_rat*omega_p
    m = cmath.sqrt(eps_m(omega))
    x = (omega/c) * R * 1e-9/h_reduced
    mesomie.calc_ab(R*10,      # R in angstrem
                    x,      # xd
                    x * m,  # xm
                    1,      # eps_d
                    m * m,  # eps_m
                    0,      # d_parallel
                    d_perp[i])      # d_perp
    mesomie.calc_Q()
    mie.SetLayersSize(x)
    mie.SetLayersIndex(m)
    mie.RunMieCalculation()
    Qext.append(mesomie.GetQext())
    Qext_mie.append(mie.GetQext())
    # print(x, m, Qext[-1] - mie.GetQext())

    om_rat_plot.append(om_rat)
# print(Qext)
plt.plot(om_rat_plot, Qext_mie, label='classic', color='gray', lw=4)
plt.plot(om_rat_plot, Qext, label='non-classic', color='red', lw=4)
plt.legend()
plt.yscale('log')
plt.xlim((0.4, 0.8))
plt.show()