File:Gaas inas quantum dot.jpg

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from scipy.ndimage import rotate
import matplotlib.pyplot as plt
import matplotlib.patheffects as patheffects
import matplotlib.font_manager as fm
from mpl_toolkits.axes_grid1.anchored_artists import AnchoredSizeBar
import hyperspy.api as hs

# Load, rotate and crop data
s_adf = hs.load("gaas_inas_quantum_dot.dm3")
s_adf.data = rotate(s_adf.data, angle=90, reshape=False)
s_adf_crop = s_adf.isig[2.3:38.1, 10.6:23.]

aspect_ratio = s_adf_crop.data.shape[0] / s_adf_crop.data.shape[1]

# Making figure
fig, ax = plt.subplots(figsize=(7, 7 * aspect_ratio))

cax = ax.imshow(s_adf_crop, extent=s_adf_crop.axes_manager.signal_extent, vmin=29000, vmax=50000)

# Annotations
path_effects = [patheffects.withStroke(linewidth=3, foreground='black', capstyle="round")]
text_kwargs = {'fontsize': 25, 'color': 'white', 'path_effects': path_effects,
               'transform': ax.transAxes}
ax.text(0.02, 0.03, "GaAs", ha="left", va="bottom", **text_kwargs)
ax.text(0.02, 0.32, "InGaAs", ha="left", va="bottom", **text_kwargs)
ax.text(0.02, 0.75, "GaAs", ha="left", va="bottom", **text_kwargs)

ax.text(0.75, 0.72, "Quantum\ndot", multialignment='right', **text_kwargs)
ax.arrow(34., 20.5, -3.5, -1.5, color='white', path_effects=path_effects,
         width=0.2)

# Scalebar
fontprops = fm.FontProperties(size=30)
kwargs_sizebar = {'loc': 4, 'frameon': False, 'color': 'white', 'label_top': False}
scalebar = AnchoredSizeBar(transform=ax.transData, size=10, label=u'10 nm',
                           size_vertical=0.45, fontproperties=fontprops, **kwargs_sizebar)
ax.add_artist(scalebar)
scalebar.txt_label._text.set_path_effects(path_effects)

ax.set_axis_off()

fig.subplots_adjust(0, 0, 1, 1)
fig.savefig("gaas_inas_quantum_dot.jpg", dpi=200)