We have demonstrated the lasing in the porous alumina membrane filled with hybrid polymer nanowires which consisted of poly(N-vinylcarvazole), rhodamine 6G, and TiO2 nanoparticles. The angle-resolved photoluminescence measurement suggested that lasing had a strong directionality along the hybrid polymer nanowires which were embedded within the nanochannels of the membrane. Although wavelengths of the lasing peaks were not affected by excitation and detection angles, lasing behavior strongly depended on the pore diameters of the membranes utilized. It is suggested that the closed loops for lasing are formed via multiple scattering induced by TiO2 nanoparticles embedded in the hybrid polymer nanowires.
Bibliographical noteFunding Information:
This work was financially supported by a National Research Laboratory (Grant No. M1-0302-00-0027) program administered by the Ministry of Science and Technology (MOST) of Korea and a Yonsei Center for Studies on Intelligent Biomimic Molecular Systems. The authors are grateful for the instrumental support from the equipment facility of CRM-KOSEF.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)