Work

Optofluidic random laser

Year: 2012

Type: article

Abstract: 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.

Source: Applied Physics Letters

DOI: 10.1063/1.4757872

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

Institutions: Centre National de la Recherche Scientifique, Indian Institute of Technology Kharagpur, Institut de Physique de Nice, ParisTech, Institut Langevin

Language: English

Topic: Random lasers and scattering media

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Agence Nationale de la Recherche

Award: Gain,Laser Aléatoire et Désordre