TY - GEN
T1 - Three-photon pumped anti-stokes emission in random lasers
AU - Carvalho, M. T.
AU - Dominguez, Christian T.
AU - de Araujo, Cid B.
AU - Prasad, P. N.
AU - Gomes, Anderson S.L.
PY - 2014/11/10
Y1 - 2014/11/10
N2 - We report the operation and characterization of two different three-photon pumped anti-Stokes emission in Random Lasers (RL) in different materials. Using a special dye with a high three-photon cross-section and TiO2 nanoparticles (250 nm diameter), optimized upconverted emission was obtained for particle densities of ~2 x 109/cm3, pumped by a 1350nm femtosecond laser. On the other hand, by exploiting the important and versatile ZnO semiconductor on a ZnOon-Si nanostructured film platform, upconverted RL emission centered at ~390nm was obtained by three-photon excitation at 802nm. We demonstrate characteristic random laser features, as the presence of an intensity threshold and a linewidth narrowing.
AB - We report the operation and characterization of two different three-photon pumped anti-Stokes emission in Random Lasers (RL) in different materials. Using a special dye with a high three-photon cross-section and TiO2 nanoparticles (250 nm diameter), optimized upconverted emission was obtained for particle densities of ~2 x 109/cm3, pumped by a 1350nm femtosecond laser. On the other hand, by exploiting the important and versatile ZnO semiconductor on a ZnOon-Si nanostructured film platform, upconverted RL emission centered at ~390nm was obtained by three-photon excitation at 802nm. We demonstrate characteristic random laser features, as the presence of an intensity threshold and a linewidth narrowing.
UR - https://www.scopus.com/pages/publications/85086055978
U2 - 10.1364/laop.2014.ltu1c.3
DO - 10.1364/laop.2014.ltu1c.3
M3 - Conference contribution
AN - SCOPUS:85086055978
SN - 9781557528254
T3 - Latin America Optics and Photonics Conference, LAOP 2014
BT - Latin America Optics and Photonics Conference, LAOP 2014
PB - Optical Society of America (OSA)
T2 - Latin America Optics and Photonics Conference, LAOP 2014
Y2 - 16 November 2014 through 21 November 2014
ER -