Abstract: To improve the two-point resolution, the point spread function (PSF) of a radially varying circular pupil was calculated. In this chapter, we consider a linearly varied distribution inside the circular aperture. The linear pupil is a hyper-resolving pupil because of its transmission distribution. We apply the two-dimensional Bessel–Fourier transforms to the pupil to compute the PSF. The PSF results compared with the PSF for pupils obstructed by a series of black annular diaphragms, especially in the case of constant width of black annuli. In the case of the circular pupil for the objective lens and linear amplitude distribution for the collector lens, or vice versa, we deduced the total impulse response of the confocal optical system as the product of the PSF corresponding to each lens. In addition, in the case of a linearly distributed aperture applied to confocal microscopy, we obtain a two-point image.
Publication Year: 2023
Publication Date: 2023-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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