Diffusion-driven continuous-wave-pumped organic dye lasers
David M. Coles, Aurélien A. P. Trichet, Philip R. Dolan, Robert A. Taylor, Claire Vallance and Jason M. Smith
Article first published online: 28 JUL 2015 | DOI: 10.1002/lpor.201500090
An organic dye laser with ultra-small mode volume of approximately 11 cubic microns is demonstrated. The self-diffusion of the dye molecules within the cavity replenishes the gain medium on a timescale concomitant with the photobleaching time of the dye, allowing for operation in the continuous wave pumping regime for 10's of seconds. These compact lasers could find application in lab-on-a-chip spectroscopy systems.