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Room-temperature polariton lasing in semiconductor microcavities.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Christopoulos, Stavros Högersthal, G. Baldassarri Höger Von Grundy, A. J. D. Lagoudakis, Pavlos G. Kavokin, Alexey V. Baumberg, Jeremy J. Christmann, Gabriel Butté, Raphaël Feltin, E. Carlin, J-F Grandjean, Nicolas |
| Copyright Year | 2007 |
| Abstract | We observe a room-temperature low-threshold transition to a coherent polariton state in bulk GaN microcavities in the strong-coupling regime. Nonresonant pulsed optical pumping produces rapid thermalization and yields a clear emission threshold of 1 mW, corresponding to an absorbed energy density of 29 microJ cm-2, 1 order of magnitude smaller than the best optically pumped (In,Ga)N quantum-well surface-emitting lasers (VCSELs). Angular and spectrally resolved luminescence show that the polariton emission is beamed in the normal direction with an angular width of +/-5 degrees and spatial size around 5 microm. |
| Starting Page | 126405 |
| Ending Page | 126405 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevLett.98.126405 |
| PubMed reference number | 17501142 |
| Journal | Medline |
| Volume Number | 98 |
| Issue Number | 12 |
| Alternate Webpage(s) | https://www.np.phy.cam.ac.uk/uploads/2007/prl07-gan.pdf |
| Alternate Webpage(s) | https://doi.org/10.1103/PhysRevLett.98.126405 |
| Journal | Physical review letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
