An electrically pumped phonon-polariton laser.
- Ohtani K Institute for Quantum Electronics, ETH Zürich, August-Piccard-Hof 1, 8093 Zurich, Switzerland.
- Meng B Institute for Quantum Electronics, ETH Zürich, August-Piccard-Hof 1, 8093 Zurich, Switzerland.
- Franckié M Institute for Quantum Electronics, ETH Zürich, August-Piccard-Hof 1, 8093 Zurich, Switzerland.
- Bosco L Institute for Quantum Electronics, ETH Zürich, August-Piccard-Hof 1, 8093 Zurich, Switzerland.
- Ndebeka-Bandou C Institute for Quantum Electronics, ETH Zürich, August-Piccard-Hof 1, 8093 Zurich, Switzerland.
- Beck M Institute for Quantum Electronics, ETH Zürich, August-Piccard-Hof 1, 8093 Zurich, Switzerland.
- Faist J Institute for Quantum Electronics, ETH Zürich, August-Piccard-Hof 1, 8093 Zurich, Switzerland.
- 2019-07-17
Published in:
- Science advances. - 2019
English
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 λ = 26.3 μm, 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.
- Language
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- English
- Open access status
- gold
- Identifiers
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- DOI 10.1126/sciadv.aau1632
- PMID 31309138
- Persistent URL
- https://sonar.ch/global/documents/60289
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