Abstract
We provide proof-of-principle illustration of lasing in a two-dimensional polariton topological insulator. Topological edge states may arise in a structured polariton microcavity under the combined action of spin-orbit coupling and Zeeman splitting in the magnetic field. Their properties and lifetime are strongly affected by gain. Thus, gain concentrated along the edge of the insulator can counteract intrinsic losses in such a selective way that the topologically protected edge states become amplified, while bulk modes remain damped. When gain is compensated by nonlinear absorption the metastable nonlinear edge states are formed. Taking a triangular structure instead of an infinite edge we observed persistent topological currents accompanied by the time-periodic oscillations of the polariton density.
| Original language | English |
|---|---|
| Article number | 083902 |
| Journal | Physical Review Letters |
| Volume | 122 |
| Issue number | 8 |
| Early online date | 26 Feb 2019 |
| DOIs | |
| Publication status | Published - 1 Mar 2019 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Two-Dimensional Topological Polariton Laser. / Kartashov, Yaroslav V.; Skryabin, Dmitry V.
In: Physical Review Letters, Vol. 122, No. 8, 083902, 01.03.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Two-Dimensional Topological Polariton Laser
AU - Kartashov, Yaroslav V.
AU - Skryabin, Dmitry V.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - We provide proof-of-principle illustration of lasing in a two-dimensional polariton topological insulator. Topological edge states may arise in a structured polariton microcavity under the combined action of spin-orbit coupling and Zeeman splitting in the magnetic field. Their properties and lifetime are strongly affected by gain. Thus, gain concentrated along the edge of the insulator can counteract intrinsic losses in such a selective way that the topologically protected edge states become amplified, while bulk modes remain damped. When gain is compensated by nonlinear absorption the metastable nonlinear edge states are formed. Taking a triangular structure instead of an infinite edge we observed persistent topological currents accompanied by the time-periodic oscillations of the polariton density.
AB - We provide proof-of-principle illustration of lasing in a two-dimensional polariton topological insulator. Topological edge states may arise in a structured polariton microcavity under the combined action of spin-orbit coupling and Zeeman splitting in the magnetic field. Their properties and lifetime are strongly affected by gain. Thus, gain concentrated along the edge of the insulator can counteract intrinsic losses in such a selective way that the topologically protected edge states become amplified, while bulk modes remain damped. When gain is compensated by nonlinear absorption the metastable nonlinear edge states are formed. Taking a triangular structure instead of an infinite edge we observed persistent topological currents accompanied by the time-periodic oscillations of the polariton density.
UR - http://www.scopus.com/inward/record.url?scp=85062304130&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.122.083902
DO - 10.1103/PhysRevLett.122.083902
M3 - Article
VL - 122
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 8
M1 - 083902
ER -