Traditional beam-splitting polarizer cubes rely on MacNeille coatings, but a new approach using wire grid structures on the cube hypotenuse offers enhanced polarization purity across a broader range of wavelengths and angles. Modern lithography techniques now enable the creation of ultrafine wire grids, ensuring high-performance polarization control at both visible and near-infrared wavelengths. This innovative design improves efficiency in optical systems, including laser optics, hyperspectral imaging, and precision instrumentation. By overcoming the limitations of traditional coatings, wire grid polarizers provide superior durability, broader spectral coverage, and improved angular performance for advanced photonics applications.

Keywords: beam-splitting polarizers, wire grid polarizers, MacNeille design, optical coatings, polarization optics, modern lithography, visible and near-infrared wavelengths, laser optics, hyperspectral imaging, photonics applications.