This comment demonstrates that in a recent study by Bhattacharyya et al., a linear reflective polarisation converter is erroneously interpreted as broadband absorber. It is clearly shown that the incident electromagnetic wave is reflected with its orthogonal polarisation state due to which co‐polarised reflection is reduced. Total absorption, when both the co‐ and cross‐polarised reflected components are considered, is less than 20% in the operating band claimed by the authors.
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