Coumarin 460 transfers radiative energy to disodium fluorescein when solgel silica is doped with the dyes, producing disodium fluorescein lasing in superradiant mode at a 3.3% peak efficiency under low-energy transverse pumping by a 1.5-mJ N2 laser, with disodium fluorescein being present at a concentration below its lasing threshold value.
© 1998 Optical Society of America
Original Manuscript: September 29, 1997
Revised Manuscript: February 2, 1998
Published: August 20, 1998
Hong-Kee Law, Teck-Yong Tou, and Seik-Weng Ng, "Energy-transfer dye laser in solgel silica," Appl. Opt. 37, 5694-5696 (1998)