ORGANIC SOLID-STATE LASERS WITH IMPRINTED GRATINGS ON PLASTIC SUBSTRATES

Optically pumped laser emission has been observed from thin films of 8 -hydroxyquinolinato aluminum (Alq) doped with a DCM dye deposited on a diffraction,orating formed by imprinting a film of BCB with a mold. T he BCB film, which is 4 mu m thick, is deposited on a silicon or a fle xible plastic substrate. Laser emission occurs at a wavelength war 655 nm which corresponds to the third order of the grating, which has a p eriodicity of similar to 0.6 mu m. (C) 1998 American Institute of Phys ics.