What is recorded here?
Light ordinarily disappears into a cavity’s walls as the system cools, rather than piling into its lowest-energy mode. Klaers and colleagues used repeated absorption and re-emission in a dye-filled microcavity to thermalize an effectively two-dimensional photon gas. They observed a strongly occupied ground mode, thermal spectral wings, a threshold with the expected geometry dependence and condensation away from the pump spot. Together these observations support photon Bose–Einstein condensation in the reported pumped, lossy regime.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
This is a pumped, lossy steady-state system in a regime where reabsorption thermalizes photons before loss, not unconstrained blackbody photons acquiring a chemical potential or a homogeneous two-dimensional gas. Average photon-number conservation is on the thermalization timescale. The inferred mass is a cavity-dispersion effective mass, not a photon rest mass. Thermalization and condensation are separate source contributions.
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People and systems
Jan Klaers; Julian Schmitt; Frank Vewinger; Martin Weitz
Source-listed authors for the exact contribution; experimental subjects are not autonomous scientific authors. Source support and predecessor work retain separate roles. Individual effort shares and unresolved identities are not inferred.
Research locations and affiliations
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Documented countries / regions: Germany
All four authors share the University of Bonn address printed with Germany. Publication-location association only; no nationality or effort-share inference.
English catalogue narrative
Klaers and colleagues: photon Bose-Einstein condensation in a microcavity
Light ordinarily disappears into a cavity’s walls as the system cools, rather than piling into its lowest-energy mode. Klaers and colleagues used repeated absorption and re-emission in a dye-filled microcavity to thermalize an effectively two-dimensional photon gas. They observed a strongly occupied ground mode, thermal spectral wings, a threshold with the expected geometry dependence and condensation away from the pump spot. Together these observations support photon Bose–Einstein condensation in the reported pumped, lossy regime.
Scientific scope
This is a pumped, lossy steady-state system in a regime where reabsorption thermalizes photons before loss, not unconstrained blackbody photons acquiring a chemical potential or a homogeneous two-dimensional gas. Average photon-number conservation is on the thermalization timescale. The inferred mass is a cavity-dispersion effective mass, not a photon rest mass. Thermalization and condensation are separate source contributions.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
Jan Klaers; Julian Schmitt; Frank Vewinger; Martin Weitz
Source-listed authors for the exact contribution; experimental subjects are not autonomous scientific authors. Source support and predecessor work retain separate roles. Individual effort shares and unresolved identities are not inferred.