2017
DOI: 10.1103/physrevx.7.021045
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Pump-Power-Driven Mode Switching in a Microcavity Device and Its Relation to Bose-Einstein Condensation

Abstract: We investigate the switching of the coherent emission mode of a bimodal microcavity device, occurring when the pump power is varied. We compare experimental data to theoretical results and identify the underlying mechanism based on the competition between the effective gain, on the one hand, and the intermode kinetics, on the other. When the pumping is ramped up, above a threshold, the mode with the largest effective gain starts to emit coherent light, corresponding to lasing. In contrast, in the limit of stro… Show more

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Cited by 27 publications
(30 citation statements)
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References 69 publications
(99 reference statements)
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“…Whether a state becomes a condensate or a depleted state depends on the antisymmetric matrix A alone. This theoretical observation can be understood as a generalization of the Bose-Einstein condensation in thermodynamic equilibrium to a condensation of bosons in nonequilibrium [14], which has stimulated further research recently [67][68][69][70][71].…”
Section: Applications Of Coexistence Networkmentioning
confidence: 85%
“…Whether a state becomes a condensate or a depleted state depends on the antisymmetric matrix A alone. This theoretical observation can be understood as a generalization of the Bose-Einstein condensation in thermodynamic equilibrium to a condensation of bosons in nonequilibrium [14], which has stimulated further research recently [67][68][69][70][71].…”
Section: Applications Of Coexistence Networkmentioning
confidence: 85%
“…This is accomplished by a transformation induced by the matrix D λ = diag(λ 1 , ..., λ M ), with positive λ k > 0. (33) As we want to apply this matrix to both the vectors η and µ, it is important that only positive rescaling λ k > 0 is allowed. Otherwise we would transform a solution of problem (11) into vectors that do not solve a problem of this type.…”
Section: Rescaling Transformationsmentioning
confidence: 99%
“…The two transitions, which a priori seem to be incompatible with each other due to their different nature, can thus be regarded as two sides of the same coin within a single non-equilibrium setup [17]. Several studies concerning the similarities and differences of condensate and lasing states and their appearance in different systems exist [18][19][20][21][22][23]. The investigation of systems and conditions under which a complex equilibrium state can be realized within a non-equilibrium setup has developed into an attractive topic, both in experiment and theory.…”
Section: Introductionmentioning
confidence: 99%