One approach to aberration compensation of an imaging system is to introduce a suitable
phase mask at the aperture plane of an imaging system. We utilize this principle for the …

A phase/amplitude mask on the aperture of an imaging system results in a pupil function that
is multiplicative with the lens function, resulting in a morphological transformation of the …

This study utilizes the concept of polarization phase to introduce a circularly symmetric
phase step in the aperture plane of an imaging system. Since the polarization phase can be …

This paper suggests the possibility of partial compensation of spherical aberration with a
polarization-masked lens aperture. The principle is based on the fact that any pre-specified …

This paper provides a set of polarization aberration fields that are useful for understanding
polarization aberrations in optical imaging systems. The aberration function of a plane …

We present a scheme for active compensation of complex extrinsic polarization
perturbations introduced into an optical system. Imaging polarimeter is used to measure the …

Optimizing the polarization characteristics of an optical system is generally a complicated
problem, unlike the case of optimizing scalar characteristics such as pupil function. Here, we …

The fact that circular symmetric phase and amplitude coatings can modify the imaging
qualities of a lens has ofen been used to advantage in the field of optical imagery. In this …

The polarization phase shift (PPS) has emerged as an important analytical tool in optical
metrology. The present study utilizes the concept of controlling the polarization phase in …

We present a novel device based on four orthogonal reflections that displaces an optical
beam while preserving the state of polarization. The principle of operation is the overall …