Commit 1640c206 authored by Lucas Laplanche's avatar Lucas Laplanche
Browse files

ajout calcul indices à 550°C

parent 9c101694
......@@ -42,7 +42,7 @@ def al_doping(bypass_dbr=True):
def reflectivity(bypass_dbr=False,
def reflectivity(bypass_dbr=True,
start_wavelength=800e-9,
stop_wavelength=900e-9,
electric_field=0.,
......@@ -60,6 +60,7 @@ def reflectivity(bypass_dbr=False,
l_eam_clad=l_eam_clad, l_vcsel_clad=l_vcsel_clad)
sl = op.algaas_super_lattice_refractive_index(sl, electric_field, wavelength[i], lengyel=True)
#sl = op.oxidation(sl)
n = sl['refractive_index'].to_numpy(dtype=np.complex128)
d = sl['thickness'].to_numpy(dtype=float)
......
......@@ -24,6 +24,7 @@ T = 300. # temperature [K]
N0 = 1. # air refractive index
NGAAS = 3.642 # GaAs refractive index
NAL = 2.5702 # Al refractive index at 852.1nm
NALOX = 1.6 # oxided Al refractive index
# distributed Bragg Reflectors constants @ 850nm
......
import numpy as np
from globals import C, HEV, N0, T
from globals import C, HEV, NALOX, N0, T
from sqw_lengyel_absorption import gaas_sqw_absorption_at_wavelength
from time import time as tm
......@@ -274,6 +274,24 @@ def ioffe_algaas_permittivity(al, high_frequency=True):
def oxidation(super_lattice, eam_mesa=True, vcsel_mesa=False):
for i in range(len(super_lattice)):
name = super_lattice.at[i, 'name']
if eam_mesa :
if 'eam mesa AlOx 100% Al' in name:
super_lattice.at[i, 'refractive_index'] = NALOX
if vcsel_mesa :
if 'vcsel mesa AlOx 100% Al' in name:
super_lattice.at[i, 'refractive_index'] = NALOX
return super_lattice
def confinement_barrier_mean_al_content(super_lattice, i):
name = super_lattice.at[i +1, 'name']
al = 0.
......
......@@ -4,4 +4,4 @@ import super_lattice_structure as sls
def eam_alox():
return sls.structure_eam_vcsel()
\ No newline at end of file
return sls.structure_eam_vcsel(eam_alox=True, bypass_dbr=True, eam_only=True)
\ No newline at end of file
......@@ -76,7 +76,6 @@ def structure_eam_vcsel(vcsel_only = False,
air = True
top_contact = True
top_eam_dbr = True
eam_alox = False
eam_mqw = True
bot_eam_dbr = True
middle_contact = True
......@@ -135,7 +134,8 @@ def structure_eam_vcsel(vcsel_only = False,
# aluminium oxide aperture
if eam_alox:
alox_layers = structure_alox()
sl.drop(sl.tail(1).index, inplace=True)
alox_layers = structure_alox(name='eam mesa', end_thickness = 32e-9)
sl = sl.append(alox_layers, ignore_index=True)
......@@ -219,7 +219,7 @@ def structure_eam_vcsel(vcsel_only = False,
# aluminium oxide aperture
if vcsel_alox:
alox_layers = structure_alox()
alox_layers = structure_alox(name='vcsel mesa')
sl = sl.append(alox_layers, ignore_index=True)
......@@ -664,7 +664,8 @@ def structure_middle_contact(bypass_dbr = False,
return sl, previous_layer_is_dbr
def structure_alox(period = 10,
def structure_alox(name = '??? mesa',
period = 10,
alox_thickness = 30e-9,
end_thickness = 28e-9,
alox_mean_al = 0.98,
......@@ -693,14 +694,14 @@ def structure_alox(period = 10,
# digital alloy
for i in range(period):
sl = sl.append(pd.DataFrame([['AlOx 90% Al', true_epitaxy_thickness(al_90_thickness, v_al5 + v_ga6, al5=True, ga6=True), al_90, 2e18, 0., True, False, True, False]],
sl = sl.append(pd.DataFrame([[name +' AlOx 90% Al', true_epitaxy_thickness(al_90_thickness, v_al5 + v_ga6, al5=True, ga6=True), al_90, 2e18, 0., True, False, True, False]],
columns=['name', 'thickness', 'al', 'na', 'nd', 'ga6', 'ga11', 'al5', 'al12']),
ignore_index=True)
sl = sl.append(pd.DataFrame([['AlOx 100% Al', true_epitaxy_thickness(al_thickness, v_al5, al5=True), 1., 2e18, 0., False, False, True, False]],
sl = sl.append(pd.DataFrame([[name +' AlOx 100% Al', true_epitaxy_thickness(al_thickness, v_al5, al5=True), 1., 2e18, 0., False, False, True, False]],
columns=['name', 'thickness', 'al', 'na', 'nd', 'ga6', 'ga11', 'al5', 'al12']),
ignore_index=True)
sl = sl.append(pd.DataFrame([['AlOx 90% Al',true_epitaxy_thickness(end_thickness, v_al5 + v_ga6, al5=True, ga6=True), al_90, 2e18, 0., True, False, True, False]],
sl = sl.append(pd.DataFrame([[name +' AlOx 90% Al',true_epitaxy_thickness(end_thickness, v_al5 + v_ga6, al5=True, ga6=True), al_90, 2e18, 0., True, False, True, False]],
columns=['name', 'thickness', 'al', 'na', 'nd', 'ga6', 'ga11', 'al5', 'al12']),
ignore_index=True)
......
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