title: Beryllium-Free β-Rb2Al2B2O7as a Possible Deep-Ultraviolet Nonlinear Optical Material Replacement for KBe2BO3F2.
abstract: A new beryllium-free deep-ultraviolet (DUV) nonlinear optical (NLO) material, β-Rb2Al2B2O7(β-RABO), has been synthesized and characterized. The chiral nonpolar acentric material shows second-harmonic generation (SHG) activity at both 1064 and 532 nm with efficiencies of 2×KH2PO4and 0.4×β-BaB2O4, respectively, and exhibits a short absorption edge below 200 nm. β-Rb2Al2B2O7has a three-dimensional structure of corner-shared Al(BO3)3O polyhedra. The discovery of β-RABO shows that through careful synthesis and characterization, replacement of KBe2BO3F2(KBBF) by a Be-free DUV NLO material is possible.
authors.affiliation: Department of Chemistry, University of Houston, 112 Fleming Building, Houston, TX, 77204-5003, USA.
authors.forename: T Thao
authors.initials: TT
authors.lastname: Tran
authors.affiliation: Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208-3108, USA.
authors.forename: Nathan Z
authors.initials: NZ
authors.lastname: Koocher
authors.affiliation: Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208-3108, USA.
authors.forename: James M
authors.identifier: 0000-0003-0508-2175
authors.initials: JM
authors.lastname: Rondinelli
authors.affiliation: Department of Chemistry, University of Houston, 112 Fleming Building, Houston, TX, 77204-5003, USA.
authors.forename: P Shiv
authors.identifier: 0000-0003-1787-1040
authors.initials: PS
authors.lastname: Halasyamani
keywords: borates; nonlinear optics; polymorphs; second harmonic generation; solid-state structures