Comments on the paper “Growth, structural, optical and thermal studies of semi-organic nonlinear optical potassium hydrogen oxalate single crystal”
Source abstract
Abstract
The authors of the title paper (Appl Phys A 126:394, 2020) report to have grown a new nonlinear optical potassium hydrogen oxalate (KHO) single crystal, which exhibits second harmonic generation response. In this comment, it is shown that these claims are erroneous since KHO is a well-known solid which crystallizes in the centrosymmetric P21/c space group.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nonlinear Optical Materials Research · Solid-state spectroscopy and crystallography · Crystallography and molecular interactions
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References (9)
Show source-provided references
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