Organic semiconductor distributed feedback (DFB) laser pixels fabricated via nanograting transfer and ink-jet printing

Organic semiconductor distributed feedback (DFB) lasers are of particular interest as tunable visible laser light sources. They are becoming promising candidates as excitation sources integrated in photonic lab-on-a-chip (LOC) or other sensing systems [1-3]. For bringing those to market, the established device fabrication methods and large-area thin film deposition may not fulfil the functionality and flexibility required by miniaturised LOC applications. We demonstrate two novel inexpensive fabrication methods to implement spatially defined organic semiconductor DFB lasers with a high yield and without negative influences on surrounding microstructures, e.g., passive photonic components.