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Maximizing the linear and nonlinear optical responses of alkaline tricyanomelaminate.
- Source :
-
Fundamental Research . Nov2023, Vol. 3 Issue 6, p974-978. 5p. - Publication Year :
- 2023
-
Abstract
- High-performance bi-functional materials are in urgent demand for the next-generation integrated optical devices. In this work, we successfully synthesized the first tricyanomelaminate with bi-functional optical responses, namely Cs3C6N9·H2O (I), from its analogue Na3C6N9·3H2O by a facile ion exchange method. In contrast to Na3C6N9·3H2O, I realizes an optimal arrangement of π-conjugated (C6N9)3− anion groups in its crystal structure. As a result, the second-order nonlinear optical (NLO) response is greatly enhanced from nearly zero of Na3C6N9·3H2O to ∼9.8 × KH2PO4 of I. Furthermore, I exhibits a giant linear optical anisotropic response (i.e. birefringence) of 0.52 at the wavelength of 550 nm. Both responses are almost the largest among the inorganic compounds of π-conjugated rings, which indicates that I has great potential as a bi-functional optical crystal. Structural and theoretical analyses reveal the microscopic origin of excellent optical properties. This work would attract a lot of interest to the persistently neglected potential of tricyanomelaminates as linear optical and NLO crystals. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20969457
- Volume :
- 3
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Fundamental Research
- Publication Type :
- Academic Journal
- Accession number :
- 174154002
- Full Text :
- https://doi.org/10.1016/j.fmre.2022.04.009