English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Two dimensional photon gases trapped in dye-filled microcavities can undergothermalization and nearly ideal equilibrium Bose-Einstein condensation.However, they are inherently driven-dissipative systems that can exhibit anintricate interplay between the thermalizing influence of the environment givenby the dye solution and the pump and loss processes driving the system out ofequilibrium. We show that this interplay gives rise to a robust mechanism fortwo-mode emission, when the system is driven by an off-centered pump beam.Namely, after the system starts lasing in the dominantly pumped excited mode,in a second transition a photon condensate is formed in the ground mode, whenthe pump power is increased further. This effect is a consequence of theredistribution of excited dye molecules via the lasing mode in combination withthermalization. We propose to exploit this effect for engineering controlledtwo-mode emission and demonstrate that by tailoring the transverse potentiallandscape for the photons, the threshold pump power can be tuned by orders ofmagnitude.

Controlled and robust two-mode emission from the interplay of driving and thermalization in a dye-filled photonic cavity