7 citations · 8 across the 2 of their papers we have counts for
2 papers
cond-mat.mes-hall2016★ 7 cited
Negative free carrier absorption in terahertz quantum cascade lasers
C. Ndebeka-Bandou, M. Rösch, K. Ohtani +2
We analyze the peculiar case where the free carrier absorption arising from LO phonon absorption-assisted transitions becomes negative and therefore turns into a gain source for qu…
physics.optics2016★ 1 cited
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…