000200276 001__ 200276
000200276 005__ 20190316235943.0
000200276 0247_ $$2doi$$a10.1103/PhysRevB.90.045307
000200276 022__ $$a0163-1829
000200276 02470 $$2ISI$$a000339446100002
000200276 037__ $$aARTICLE
000200276 245__ $$aNonlinear relaxation and selective polychromatic lasing of confined polaritons
000200276 269__ $$a2014
000200276 260__ $$aCollege Pk$$bAmer Physical Soc$$c2014
000200276 300__ $$a7
000200276 336__ $$aJournal Articles
000200276 520__ $$aPolaritons have often been proposed as promising candidates for the realization of all-optical devices due to the easy manipulation and control of their density and spin. In this paper we present a relaxation mechanism for confined polaritons and its application in a device based on polariton lasing in which the incoming monochromatic beam can be channeled into several polariton lasers at different wavelengths. Polaritons are injected in a 3 mu m diameter trap by an incoming beam slightly detuned with respect to a confined state, and the resulting optical bistability is then imprinted on the lower confined states through an efficient relaxation mechanism which combines phonon interaction and bosonic stimulation. Above threshold, all the confined states behave like lasers and the onset of coherence is demonstrated by spectral narrowing. Moreover, the initial polarization of the laser is conserved during the relaxation process allowing for spin logic operations. In this paper we demonstrate that, due to the nonlinear behavior, it is possible to switch ON and OFF the lasing from the confined states of the trap by tailoring the input beam. All the experimental findings are validated and very well reproduced in the framework of the generalized Gross-Pitaevskii equation.
000200276 6531_ $$aPolaritons
000200276 6531_ $$aLaser
000200276 700__ $$0242020$$aGrosso, Gabriele$$g197142
000200276 700__ $$0245589$$aTrebaol, Stéphane$$g218026
000200276 700__ $$aWouters, Michiel
000200276 700__ $$0240870$$aMorier-Genoud, François$$g105912
000200276 700__ $$0242009$$aPortella Oberli, Marcia$$g131663
000200276 700__ $$0241178$$aDeveaud, Benoît$$g104954
000200276 773__ $$j90$$k4$$q045307$$tPhysical Review B Condensed Matter
000200276 8564_ $$s2212289$$uhttps://infoscience.epfl.ch/record/200276/files/PhysRevB.90.045307%20Nonlinear%20relaxation%20and%20selective%20polychromatic%20lasing%20of%20confined%20polaritons.pdf$$yn/a$$zn/a
000200276 909C0 $$0252003$$pLOEQ$$xU10156
000200276 909CO $$ooai:infoscience.tind.io:200276$$pSB$$particle$$qGLOBAL_SET
000200276 917Z8 $$x218026
000200276 917Z8 $$x104954
000200276 917Z8 $$x104954
000200276 937__ $$aEPFL-ARTICLE-200276
000200276 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000200276 980__ $$aARTICLE