The joint influence of partially coherent illumination and secondary spherical aberration on microscopic resolution has been theoretically studied. The aberration function used is that given by the Zemike—Nijboer expansion. The results are presented in terms of the contrast in the images of two point- objects and the resolution according to the Rayleigh criterion. It is seen that for certain states of illumination, the presence of spherical aberration leads to a slight improvement in resolution, although the image contrast is reduced. Analytical expressions for the point-image intensity distribution and Strehl’s ratio in the presence of secondary spherical aberration are also given. © 1971 Taylor & Francis Group, LLC.

S C SOM

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

&nbsp;

The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

&nbsp;

It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Influence of Partially Coherent Illumination and Spherical Aberration on Microscopic Resolution

Optica Acta

A theoretical study has been made of the intensity distribution and the encircled energy distribution in the far-field generated by diffraction, at circular apertures, of partially coherent light in the presence of spherical aberrations. The correlation function that has been used in this study is appropriate for representing the effect of atmospheric turbulence on the state of coherence of aperture illumination. The cases of both primary and secondary spherical aberrations have been considered separately. The aberration functions used are those provided by the Zernike-Nijboer theory of wave aberrations. Extensive numerical results concerning the intensity and the encircled energy distributions as well as the expected two-point resolution have been presented. Tolerance limits on the aberration coefficients corresponding to different states of coherence of the aperture illumination have also been given. © 1973 Taylor & Francis Group, LLC.

The joint influence of spherical aberration and partial coherence due to atmospheric turbulence on the structure of the far-field diffracted by circular apertures

Principles of Optics

FOUNDATIONS OF GEOMETRICAL OPTICS

Journal of the Optical Society of America

Diffraction Effects of Coma

Progress in Optics

II Apodisation

Proceedings of the Physical Society. Section B

The Influence of the Condenser on Microscopic Resolution

Physica

The diffraction theory of optical aberrations

Influence of partially coherent illumination and spherical aberration on microscopic resolution

Journal	Optica Acta
Publisher	-
ISSN	0030-3909