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(Color online) (a) Sketch of the structure of the miniarray after substrate removal. (b) Microscope picture of the etch stop after substrate removal.
(Color online) (a) Quantum efficiency of sample A at . (b) Quantum efficiency of sample B at . Diode 2 is the device with the higher contact area over optical area ratio (0.87). Diode 1 is a diode with a lower contact area over optical area ratio (0.56). The oscillations of diode 1 present more amplitude because the contact is an almost perfect mirror on the contrary to the interface between the superlattice and the epoxy.
(Color online) (a) Plot of the oscillations, maxima and minima of the simulated and measured values. (b) Simulated and experimental reflectivities.
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