An electrically pumped phonon-polariton laser
Applied Physics
2018-08-30 v1
Abstract
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 cascade structure provides intersubband gain into the polariton mode at = 26.3 \mu m, allowing self-oscillations close to the longitudinal optical phonon energy of AlAs. Because of the large computed phonon fraction of the polariton of 65%, the emission appears directly on a Raman spectrum measurement exhibiting a Stokes and anti-Stokes component with the expected shift of 48 meV.
Keywords
Cite
@article{arxiv.1808.09844,
title = {An electrically pumped phonon-polariton laser},
author = {Keita Ohtani and Bo Meng and Martin Franckié and Lorenzo Bosco and Camille Ndebeka-Bandou and Mattias Beck and Jérôme Faist},
journal= {arXiv preprint arXiv:1808.09844},
year = {2018}
}
Comments
Supplementary materials are appended at the end of the main text