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24 June 2019 Analysis of the amplitude on optical axis at the incidence of the conical wave on an astigmatic lens
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Proceedings Volume 11146, Optical Technologies for Telecommunications 2018; 111460H (2019) https://doi.org/10.1117/12.2527241
Event: XVI International Scientific and Technical Conference on Optical Technologies in Telecommunications, 2018, Ufa, Russian Federation
Abstract
In this article we have considered the situation when a conical wave illuminates an astigmatic lens. Since the task to be solved is to estimate the degree of astigmatism, it is not necessary to determine the total amplitude distribution, it is sufficient to obtain an analytical expression for the field amplitude on the optical axis. On its basis, the boundaries of the shadow region, the number of zeros of intensity and their positions are calculated. The astigmatic coefficient was calculated based on the positions of zeros were found in numerical modeling. The obtained value is quite consistent with the given a priori, which proves the practical applicability of the proposed method.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. V. Ustinov and S. N. Khonina "Analysis of the amplitude on optical axis at the incidence of the conical wave on an astigmatic lens ", Proc. SPIE 11146, Optical Technologies for Telecommunications 2018, 111460H (24 June 2019); https://doi.org/10.1117/12.2527241
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