A flexible conjugated polymer laser using 2D distributed feedback

Summary form only given. The discovery of stimulated emission in semiconducting polymers has triggered intense research towards the realization of an organic injection laser. One of the most promising approaches towards novel organic thin film lasers is the use of distributed feedback resonators realized with flexible substrates. Such a strategy might lead to novel large area lasing devices of virtually any shape not possible with inorganic semiconductor materials. In order to achieve a low lasing threshold and to control the emission properties, it is crucial to reduce the number of modes participating in the lasing operation. A particularly interesting way to fulfill these requirements is the use of two-dimensional photonic bandstructure (PBS) materials. We present experiments on optically pumped flexible polymer lasers using a two-dimensional PBS based distributed feedback.