TY - JOUR
T1 - Semiconducting polymers
T2 - a new class of solid-state laser materials
AU - Schwartz, Benjamin J.
AU - Díaz-García, María Angeles
AU - Hide, Fumitomo
AU - Andersson, Mats R.
AU - Pei, Qibing
AU - Heeger’, Allan J.
PY - 1996/9/27
Y1 - 1996/9/27
N2 - Gain narrowing in optically pumped thin films, both neat and undiluted, of luminescent conjugated polymers with different molecular structures was demonstrated. These results indicate that the polymers studied have large cross sections for stimulated emission, that population inversion can be achieved at low pump energies, and that the emitted photons travel distances greater than the gain length within the gain medium. The use of simple waveguide structures is sufficient to cause low gain narrowing thresholds in submicrometer-thick films.
AB - Gain narrowing in optically pumped thin films, both neat and undiluted, of luminescent conjugated polymers with different molecular structures was demonstrated. These results indicate that the polymers studied have large cross sections for stimulated emission, that population inversion can be achieved at low pump energies, and that the emitted photons travel distances greater than the gain length within the gain medium. The use of simple waveguide structures is sufficient to cause low gain narrowing thresholds in submicrometer-thick films.
U2 - 10.1126/science.273.5283.1833
DO - 10.1126/science.273.5283.1833
M3 - Article
VL - 273
SP - 1833
EP - 1836
JO - Science
JF - Science
SN - 1095-9203
ER -