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We report on optically controlled antennas and photonic downconversion for mm-wave wireless communication applications. Experimental results demonstrate a transmission of 1.25 Gb/s using 28 and 38GHz frequency bands.
A study of the intraband absorption coefficient in cuboid InAs quantum dot periodic nanostructures embedded in GaAs is presented. The miniband structure of electron states in the conduction band is related to the shape of the quantum dots. The effect of strain is also taken into account in the simulations through a previous 8×8 k•p calculation. We analyze the influence on the absorption coefficient...
A study of the physics of electronic states in cubic InAs quantum dot periodic nanostructures embedded in GaAs is presented. The miniband structure of electron states in the conduction band is related to the size and density of the quantum dots. The effect of strain is also taken into account in the simulations. The photon-electron absorption coefficient is obtained for different quantum dot configurations...
In this work we have theoretically investigated photon absorption coefficient in ordered InAs/GaAs cubic quantum dot systems. We solved the Schrodinger equation associated with these structures, using a set of 13 × 13 × 13 plane waves at 12,167 equally spaced points of the Q space. We investigated the transitions between minibands arising from the conduction band, taking into account the different...
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