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Updated: Feb 9, 2026

Three-dimensional Optical-resolution Photoacoustic Microscopy
Published on: May 3, 2011
Two-Dimensional Deep-Ultraviolet Beryllium-Free KBe2BO3F2 Family Nonlinear-Optical Monolayer
Guoyu Yang1,2, Kechen Wu1
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou 350002 , People's Republic of China.
Abstract:
A two-dimensional (2D) nonlinear-optical (NLO) material could generate a breakthrough in the development of a nanoscale laser, especially in the range of high-energy and short-wavelength deep ultraviolet (DUV; <200 nm). KBe2BO3F2 (KBBF) is the only bulk crystal actually used in the DUV region. In this letter, we designed the new 2D KBBF family monolayer Al3LiB2O6F4 (2D-ALBF), which was predicted to have a broad DUV-vis transparent range and an enhanced NLO effect that doubles the frequency. 2D-ALBF keeps the infinite planar [Be2BO3F2]∞ structure in KBBF but does not contain the toxic beryllium element.
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