POLARIZER

摘要

A polarizer having a two-dimensional periodic structure the period of which is 1 mu m or less. The polarizer has a structure in which films of two or more kinds having projections one-dimensionally periodically are built up substantially periodically. The structure is two-dimensionally periodic. The polarizer is made of, for example, two material (1, 2) having different refractive indexes. By a simple method, the two-dimensional periodic structure is fabricated. Incident light having a specific polarization plane is transmitted through the polarizer, and incident light having a polarization plane orthogonal to the specific polarization plane is reflected by the polarizer.