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Abstract
Three (3) items of errata are submitted for our recently published paper [Opt. Express 28, 36505 (2020) [CrossRef] ]. One is a clarifying extension to the Fig. 3 caption. Two are typographical corrections. The scientific results and conclusions are unaffected.
Errata
The corrections to our paper [1] are the following:
- • The last sentence of the Fig. 3 caption is extended by a clarifying phrase, so that it reads in full: “Curve C is for a lens corrected for the length aberration, as proposed in Sec. 6, and is shifted down by $0.5\,\mu$m for clarity.”
- • The Section 1 heading is misspelled, and should be Introduction.
- • On p. 36509, missing punctuation should be inserted to read “$\ldots$ Fermat’s principle $\ldots$”.
Funding
DOE-BES Accelerator and Detector Research Program (2016-ANL-50511); Office of Science (DE-AC02-06CH11357); National Science Foundation (DMR-1720139, ECCS-1542205).
References
1. S. D. Shastri and N. Moldovan, “Submicron focusing of high-energy X-rays with silicon saw-tooth refractive lenses: fabrication and aberrations,” Opt. Express 28(24), 36505–36515 (2020). [CrossRef]