Authors: V. Robbiano, G. M. Paternò, A. A. La Mattina, S. G. Motti, G. Lanzani, F. Scotognella, G. Barillaro

Abstract: Here we demonstrate low-threshold lasing from fully-transparent nanostructured porous silicon (PSi) monolithic microcavities (MCs) infiltrated with a polyfluorene derivative, namely poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO). The hybrid laser supports single-mode blue lasing at the resonance wavelength of 466 nm, with line width of ~1.3 nm and lasing threshold as low as 5 nJ (i.e. fluence of 15 µJ/cm2), which is among the lowest values of state-of-the-art PFO-based lasers.

File: 10.1364/LS.2018.LW6F.3