34 citations · 64 across the 6 of their papers we have counts for
7 papers
Disorder effects in InAs/GaSb topological insulator candidates
C. Ndebeka-Bandou, J. Faist
We report the theoretical investigation of the disorder effects on the bulk states of inverted InAs/GaSb quantum wells. As disorder sources we consider the interface roughness and…
An electrically pumped phonon-polariton laser
Keita Ohtani, Bo Meng, Martin Franckié +4
We report a device that provides coherent emission of phonon polaritons, a mixed state between photons and optical phonons in an ionic crystal. An electrically pumped GaInAs/AlInAs…
Quantum model of gain in phonon-polariton lasers
Martin Franckié, Camille Ndebeka-Bandou, Keita Ohtani +1
We develop a quantum model for the calculation of the gain of phonon-polariton intersubband lasers. The polaritonic gain arizes from the interaction between the electrons confined…
A quantum cascade phonon-polariton laser
Keita Ohtani, Camille Ndebeka-Bandou, Lorenzo Bosco +2
We report a laser that coherently emits phonon-polaritons, quasi-particles arising from the coupling between photons and transverse optical phonons. The gain is provided by an inte…
Free carrier absorption in cascade structures due to static scatterers in the in-plane polarization
Camille Ndebeka-Bandou, Francesca Carosella, Robson Ferreira +1
We report on the computation of the free carrier absorption induced by static scatterers in cascade structures when the electromagnetic wave propagates along the growth axis. We fi…
Relevance of intra- and inter-subband scattering on the absorption in heterostructures
Camille NDebeka-Bandou, Francesca Carosella, Robson Ferreira +2
We analyze the absorption lineshape for inter-subband transitions in disordered quasi 2D heterostructures by an exact calculation. The intra-subband scatterings control the central…
Free carrier absorption in quantum cascade structures
F. Carosella, C. Ndebeka-Bandou, R. Ferreira +5
We show that the free carrier absorption in Quantum Cascade Lasers is very small and radically different from the classical Drude result on account of the orthogonality between the…