The quest for novel nonlinear optical (NLO) polymorphs is pivotal for advancing laser technology and frequency conversion applications. We present a detailed study on the synthesis and properties of the 2 polymorph of CHNOZn, which exhibits an enhanced second harmonic generation (SHG) effect, 0.3 times that of KDP, nearly 8-fold higher than the 422 phase. This improvement is attributed to an increased [ZnNO] polyhedral stacking angle and structural distortion in the 2 phase. Our findings underscore the importance of polymorphs in optimizing NLO properties and position the 2 phase as a promising candidate for ultraviolet NLO applications.
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| http://dx.doi.org/10.1039/d4dt03179b | DOI Listing |
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