Organic photonic crystal band edge laser fabricated by direct nanoprinting

In this paper, we employed direct nanoprinting on an organic amorphous layer to realize a PhC band edge laser. A 2D-PhC pattern with pitch of 400 nm was succesfully transferred to the surface of an organic amorphous layer, and laser oscillation was confirmed. In addition, we found that the lasing threshold can be controlled by controlling the press condition. As far as we know, this is first organic PhC band edge laser fabricated by transferring a PhC pattern directly onto an organic amorphous layer from the mold. We can utilize the direct nanoprinting to exploit the advantage of PhC band edge laser, that is, single mode oscillation with a simple device structure.