KNT-Scientific-Publications

Efficient organic distributed feedback lasers with imprinted active films

We report on the fabrication of efficient organic distributed feedback (DFB) lasers with thermally-nanoimprinted active films, emitting between 565 and 580 nm. The use of thermal-NIL has allowed, as opposed to room temperature or solvent-assisted techniques, high grating quality and excellent modulation depth. The 155°C heat exposure of the NIL process, does not significantly affect the thermal and optical properties of the active material (polystyrene films doped with a perylenediimide derivative). These devices combine a simple and low-cost preparation method with good laser characteristics, i.e. thresholds of 1 μJ/pulse, single-mode emission with linewidths below 0.2 nm and photostability half-lives of ~ 105 pump pulses under ambient conditions. In comparison to more standard DFBs with gratings on the substrate, their fabrication is much easier, while they show a similar laser performance.

Ramirez, M. G., Boj, P. G., Navarro-Fuster, V., Vragovic, I., Villalvilla, J. M., Alonso, I., … & Díaz-García, M. A. (2011). Efficient organic distributed feedback lasers with imprinted active films. Optics express, 19(23), 22443-22454.
https://doi.org/10.1364/OE.19.022443

Share this post

Share on facebook
Share on twitter
Share on linkedin
Share on google
Share on pinterest
Share on print
Share on email

How can we help you to bring your project together?