We report low threshold blue polyfluorene distributed-feedback (DFB) lasers. Second-order lasers exhibit a laser threshold of 0.28 nJ/pulse while the threshold is reduced to 0.16 nJ/pulse for first-order gratings. Laser diode pumping is demonstrated. © 2006 Optical Society of America.
|Original language||English (US)|
|Title of host publication||Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006|
|State||Published - Dec 1 2006|