Plastic lasers based on high resolution reflection gratings

In this communication we report lasing effects from three plastic structures operating in different geometric configurations. The three devices are based on high resolution gratings recorded in a photosensitive organic mixture by means of holographic techniques. The first device has been realized integrating the holographic mirror in a layered structure which consists of two separate regions. The first region contains a dye as active material, the second one the holographic mirror. The third configuration consists of a standard distributed feedback (DFB) arrangement in which the active material is placed directly in contact with the periodic structure