Quintana, José A., Villalvilla, José M., Morales-Vidal, Marta, Boj, Pedro G., Zhu, Xiaozhang, Ruangsupapichat, Nopporn, Tsuji, Hayato, Nakamura, Eiichi, Díaz-García, María A.
An Efficient and Color-Tunable Solution-Processed Organic Thin-Film Laser with a Polymeric Top-Layer Resonator
Advanced Optical Materials. 2017, 5(19): 1700238. doi:10.1002/adom.201700238
URI: http://hdl.handle.net/10045/69931
DOI: 10.1002/adom.201700238
ISSN: 2195-1071
Abstract: 
Thin film organic lasers represent attractive light sources for numerous applications. Currently, efforts are devoted to the development of low-cost high-performance and color-tunable devices, whereby both the resonator and the active layer should consist of solution-processable organic materials. Herein, solution-processed distributed-feedback lasers are reported with polymeric resonators on top of active films of perylene orange or carbon-bridged oligo(p-phenylenevinylene) dispersed in polystyrene, which combine these properties. These lasers emit in the 520–595 nm range and show low thresholds (≈1 kW cm−2) and long operational lifetimes (7 × 105 pump pulses), which are comparable to other state-of-the-art lasers that contain the same active materials but resonators made on inorganic substrates. Due to this top-layer resonator configuration, the laser slope efficiencies of the present devices are remarkably superior. A centimeter-size device emitting at different wavelengths within a broad spectral range, based on a perylene-based film of uniform thickness that contributes to preserve a low threshold, is demonstrated.
Keywords:Distributed feedback lasers, Organic lasers, Polymeric resonators, Solution-processed
Wiley-VCH Verlag GmbH & Co. KGaA
info:eu-repo/semantics/article