👉 The angle fluid, also known as the angle glass or angle glass rod, is a transparent, birefringent material that exhibits two distinct refractive indices when light passes through it, corresponding to the ordinary and extraordinary rays. This unique property arises due to its elongated molecular structure, which causes light to split into two polarized components with different velocities and refractive indices. The angle fluid is commonly used in optical devices like polarizers, wave plates, and interferometers because of its precise birefringence properties, which can be finely controlled by adjusting the fluid's concentration or temperature. These applications leverage the angle fluid's ability to manipulate light polarization and phase, making it a valuable tool in various fields of optics and photonics.
