Widely tunable green laser emission using the coumarin 545 tetramethyl dye as the gain medium
Abstract
We report on widely tunable laser emission obtained using a solution of coumarin 545 tetramethyl dye in ethanol. Interest in this dye derives from its use as an efficient emitter in electrically excited high-brightness organic light emitting diodes. The laser tuning range, at a concentration of 3 mM, was found by measurement to be in the 501-574 nm range, while exhibiting an intensity dynamic range of over four orders of magnitude.
- Publication:
-
Journal of Optics A: Pure and Applied Optics
- Pub Date:
- February 2006
- DOI:
- 10.1088/1464-4258/8/2/010
- Bibcode:
- 2006JOptA...8..172D