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An empirical relationship between optical properties and the nuclear quadrupole coupling parameters in the boron sites in the nonlinear optical CsLiB6O10

Title
An empirical relationship between optical properties and the nuclear quadrupole coupling parameters in the boron sites in the nonlinear optical CsLiB6O10
Author
김지원
Keywords
crystal growth; nuclear magnetic resonance; other optical materials
Issue Date
2003-07
Publisher
PHYSICAL SOCIETY JAPAN
Citation
Journal of the Physical Society of Japan v. 72, no.7, page.1774-1778
Abstract
The rotation patterns of the nuclear magnetic resonance of 11 B ( I =3/2) in a nonlinear optical CsLiB 6 O 10 single crystal were measured in three mutually perpendicular crystal planes. We observed sixteen different spectra which could be divided into two groups corresponding to two kinds of boron atoms, B(1) and B(2), having different boron–oxygen rings and lying at crystallographically inequivalent sites. From these results, the quadrupole coupling constants and the asymmetry parameters were determined at room temperature for the first time. For the 4-coordinated B(1), e 2 q Q / h =0.23±0.03 MHz and η=0.456±0.004, and for the 3-coordinated B(2), e 2 q Q / h =2.58±0.03 MHz and η=0.276±0.004. The directions of the principal axes of the electric field gradient tensors were also determined. The spectra for the two groups have different principal values of the electric field gradient tensor and originate from magnetically inequivalent sites. The principal Z -axis of the EFG tensor nearly coincides with the normal to the plane of the boron–oxygen triangle. We found an interesting correlation between the asymmetry parameter and the largest nonlinear optical coefficient.
URI
https://journals.jps.jp/doi/10.1143/JPSJ.72.1774https://repository.hanyang.ac.kr/handle/20.500.11754/156094
ISSN
0031-9015
DOI
10.1143/JPSJ.72.1774
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > PHOTONICS AND NANOELECTRONICS(나노광전자학과) > Articles
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