We have developed and tested an antireflection (AR) coating method for silicon lenses at cryogenic temperatures and millimeter wavelengths. Our particular application is a measurement of the cosmic microwave background. The coating consists of machined pieces of Cirlex glued to the silicon. The measured reflection from an AR coated flat piece is less than 1.5% at the design wavelength. The coat...

The design of a test platform for novel antireflection and light trapping schemes, based on the interdigitated back contact (IBC) solar cell concept, is presented. Two enhancements to the front surface of the basic cell design are explored: Addition of a thin SiO2 passivation layer between the thin film antireflective (AR) coating and incorporation of a front surface field via the formation of ...

Coherent transmission and reflection coefficients of individual monolayers of spherical alumina particles in the wavelength range from 0.3 to 1.0 μm and multilayers consisting of a set of such monolayers are computed. Quasi-crystalline approximation of the theory for multiple scattering of waves and the transfer matrix method are used. Three types of coherent transmittance minima inherent to cl...