35 citations · 102 across the 7 of their papers we have counts for
7 papers
Photo-acoustic spectroscopy using a quantum cascade laser (QCL) for analysis of ammonia in water solutions
Apostolos Apostolakis, Guillaume Aoust, Grégory Maisons +2
Ammonia (NH) toxicity, stemming from nitrification, can adversely affect aquatic life and influence the taste and odor of drinking water. This underscores the necessity for hig…
Beyond the ordinary acoustoelectric effect: superluminal phenomena in the acoustic realm and phonon-mediated Bloch gain
A. Apostolakis, A. G. Balanov, F. V. Kusmartsev +1
It has been shown that coherent phonons can be used as a potent tool for controlling and enhancing optoelectronic and transport properties of nanostructured materials. Recent studi…
Recent advances in superlattice frequency multipliers
Yuliia Shevchenko, Apostolos Apostolakis, Mauro F. Pereira
Semiconductor superlattice multipliers have emerged as a nonlinear medium capable to generate radiation in a wide frequency range. This property facilitates the potential of source…
Superlattice nonlinearities for Gigahertz-Terahertz generation in harmonic multipliers
Apostolos Apostolakis, Mauro F. Pereira
Semiconductor superlattices are strongly nonlinear media offering several technological challenges associated with the generation of high-frequency Gigahertz radiation and very eff…
Potential and limits of superlattice multipliers coupled to different input power sources
A. Apostolakis, M. F. Pereira
A theoretical study is presented to assess the performance of semiconductor superlattice multipliers as a function of the currently available input power sources. The prime devices…
Controlling the harmonic conversion efficiency in semiconductor superlattices by interface roughness design
Apostolos Apostolakis, Mauro F. Pereira
In semiconductor superlattices, when Bragg oscillating electrons interact with an input electromagnetic field, frequency multiplication is possible. An ideal superlattice has a pur…