optically nonlinear polymer
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https://doi.org/10.1351/goldbook.08845
Polymer that exhibits a nonlinear optical effect.
Source:
PAC, 2022,
94
, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 39 (https://doi.org/10.1515/pac-2020-0501)