Abstract
A surface emitting microcavity was formed by sandwiching a polymer film containing poly(N-vinyleabzole) (PVK). 8-hydroxyquinoline aluminum (Alq3) and 4-(Dicyanome thylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-Pyran(DCM) between a distributed Bragg reflector (DBR) with a reflectivity of 99% and a silver film. The sample was optically pumped with 250 ps pulses at 2 Hz repetition rate by a 355 nm line of the third harmonic of a mode-lock Nd:YAG laser. The lasing phenomenon was observed in DCM-doped PVK microcavity. The full width at half maximum (FWHM) was 3 nm with the peak wavelength at 602 nm. The threshold energy for lasing was estimated to be about 3 μJ.
Original language | English |
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Pages (from-to) | 198-200 |
Number of pages | 3 |
Journal | Thin Solid Films |
Volume | 363 |
Issue number | 1 |
DOIs | |
State | Published - Mar 1 2000 |
Event | The Asia-Pacific Symposium on Organic Electroluminescent Materials and Devices - Hong Kong, Hong Kong Duration: Jun 8 1999 → Jun 11 1999 |
Funding
This work was supported by National Natural Science Foundation of China; the Key Project of Chinese Academy of Sciences and the Hundreds of Talents Program in Chinese Academy of Sciences.