Fabrication of photonic crystal lasers by nanomolding of solgel glasses

We demonstrate the formation, in a single process step, of periodic arrays of features of surface relief with submicrometer lateral dimensions in hybr id organic and inorganic solgel glasses by using elastomeric molding techni ques. Lasers formed with molded photonic crystal resonators that consist of triangular, square, and honeycomb lattices of cylindrical posts and holes show emission spectra and lasing thresholds that are similar to devices for med by conventional high-resolution photolithographic patterning of thick l ayers of thermally grown oxide. (C) 1999 Optical Society of America OCIS co des: 140.3490, 160.6060, 220.4610.