Optofluidic random laser

B. N. Shivakiran Bhaktha, Nicolas Bachelard, Xavier Noblin, Patrick Sebbah

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89 Scopus citations


Random lasing is reported in a dye-circulated structured polymeric microfluidic channel. The role of disorder, which results from limited accuracy of photolithographic process, is demonstrated by the variation of the emission spectrum with local-pump position and by the extreme sensitivity to a local perturbation of the structure. Thresholds comparable to those of conventional microfluidic lasers are achieved, without the hurdle of state-of-the-art cavity fabrication. Potential applications of optofluidic random lasers for on-chip sensors are discussed. Introduction of random lasers in the field of optofluidics is a promising alternative to on-chip laser integration with light and fluidic functionalities.

Original languageEnglish
Article number151101
JournalApplied Physics Letters
Issue number15
StatePublished - 8 Oct 2012
Externally publishedYes

Bibliographical note

Funding Information:
The authors wish to acknowledge Amélie Trichon for the help in sample preparation. This work was supported by the ANR under Grant No. ANR-08-BLAN-0302-01 and the Groupement de Recherche 3219 MesoImage.


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