OPTICAL COMPONENT

摘要

The invention relates to an optical component for effecting frequency-selective reflection in the gigahertz and terahertz frequency ranges and for effecting wave permeability. The inventive component comprises: at least one first layer (1, 3, 5) made of a first material (m1), which is optically permeable to electromagnetic radiation of a reference frequency (f) between 5 gigahertz (GHz) and 10 terahertz (THz) and which has a first refractive index (n1) and an optical thickness of approximately one-fourth the wavelength ( lambda ) of the electromagnetic radiation of the reference frequency (f) in the first material (m1); at least one second layer (2) is situated underneath the first layer (1) and is made of a second material (m2), which is optically permeable to electromagnetic radiation of a reference frequency (f) and which has a second refractive index (n2) and an optical thickness of approximately one-fourth or one-half the wavelength ( lambda ) of the electromagnetic radiation of the reference frequency (f) in the second material (m2), whereby the first refractive index (n1) and the second refractive index (n2) are different.