Mechanisms of enhancement of nonlinear optical response in nanostructured III-V compounds

Abstract

The goal of this paper is to propose a new mechanism of nonlinear optical properties enhancement in nanostructured semiconductors based on the concept of photonic crystals (PC). The photonic crystal is usually formed as a structure consisting of two or more optically transparent periodically arranged media. It is to be noted that not all photonic applications require a strictly ordered distribution. PC properties are also inherent for structures with a quasi-uniform distribution, called amorphous PC. Short range order in porous III-V is easily achieved with electrochemical dissolution. Long range order is also possible with appropriate electrochemical parameters. Single crystals of pores have been obtained by means of self organization processes in n-InP.