As a wide band gap semiconductor material, tin oxide (SnO2) has been widely used in gas sensing, optoelectronics and catalysis. The complex micro nanoscale three-dimensional (3D) geometric structures endow the conventional SnO2 ceramics with novel properties functionalities. Nevertheless, cannot be cast or machined easily due to their high mechanical toughness resistance. additive manufacturing...

We describe two methods, liquid deposition photolithography and holographic lithography, for fabricating two-dimensional arrays of optical waveguides with high channel counts. Both methods rely on refractive index patterning via monomer diffusion in photosensitive polymers. © 2012 Optical Society of America OCIS codes: (130.5460) Polymer waveguides

We present the optimization of a transmission grating to be used as a phase mask in photolithography. The electromagnetic fields diffracted by the structure are computed with MMP (Multiple Multipole Method). With this simple procedure a high accuracy and low computation time are achieved.