Spectroscopic imaging has been proved to be an effective tool for many applications in a variety of fields, such as biology, medicine, agriculture, remote sensing and industrial process inspection. However, due to the demand for high spectral and spatial resolution it became extremely challenging to design and implement such systems in a miniaturized and cost effective manner. Using a Compressi...

Abstract In this work we demonstrate customized depolarization spatial patterns by imaging a dynamical time-dependent pixelated retarder. A proof-of-concept of the proposed method is presented, where liquid–crystal light modulator used as retarder that emulates controlled spatially variant depolarizing sample addressing phase pattern. We apply an Mueller polarimetric system based on polarizatio...

Bragg microcavities (BMs) formed by the successive stacking of nanocolumnar porous SiO2 and TiO2 layers with slanted, zigzag, chiral, and vertical configurations are prepared by physical vapor deposition at oblique angles while azimuthally varying the substrate orientation during the multilayer growth. The slanted and zigzag BMs act as wavelength-selective optical retarders when they are illumi...

The Soleil–Babinet compensator (SBC) is a variable retarder and has been used in variety of application fields. A scheme based on the vectorial optical field proposed to calibrate SBC by transforming change phase retardation into visible rotation petal-like pattern. relationship between angle pattern established theoretically. In experiment, vector beam generated using spiral plate (SPP) modifi...

Error sources that afflict true zero order, compound zero order and multi-order linear retarders include variations in temperature, angle of incidence, wavelength, and the presence of multiple reflections. This application note contains technical information designed to aid the user in producing the highest quality results and in making the best purchasing choice among retarder types for the in...

Context. Linear spectropolarimetry is a “photon-hungry” observing technique, requiring a specific sequence of observations to determine the Stokes Q and U parameters. For dual-beam spectropolarimeters, the Q and U Stokes parameters can be ideally determined using observations at N=2 retarder plate positions. The additional polarization signal introduced by instrumental effects requires the redu...

Abstract The Daniel K. Inouye Solar Telescope (DKIST) advances studies of solar magnetism through high-precision and accuracy in polarimetry at frontier spatial temporal scales. A system model for polarization response azimuth altitude has been developed to calibrate DKIST instruments. team several new modeling performance-estimation techniques coupled with thorough metrology. These efforts ens...

The two latest 3DTV types were tested; active shutter eye-glass type and passive eye-glass type with screen having film pattern retarder. Differences in vertical resolution, cross-talk and luminance were found. This difference in vertical resolution is visible for some types of objects. How this affects the image quality is unclear.