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Diffusion‐driven continuous‐wave‐pumped organic dye lasers
Author(s) -
Coles David M.,
Trichet Aurélien A. P.,
Dolan Philip R.,
Taylor Robert A.,
Vallance Claire,
Smith Jason M.
Publication year - 2015
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201500090
Subject(s) - lasing threshold , laser , continuous wave , materials science , diffusion , optoelectronics , dye laser , optics , physics , thermodynamics
We report on the realisation of ultra‐small‐mode‐volume tunable dye lasers based on hemispherical open microcavities. The cavity mode volume is of the order of cubic micrometers, such that self‐diffusion of the dye molecules allows continuous wave operation over several minutes without the need for driven circulation. Such micro lasers could be integrated into lab‐on‐a‐chip devices. A rate‐equation model that incorporates the diffusion mechanism is used to predict the effect of the microcavity parameters on the lasing threshold.