CsSbF₂SO₄: An Excellent Ultraviolet Nonlinear Optical Sulfate with a KTiOPO₄ (KTP)‐type Structure

Abstract

Nichtlineare optische Materialien In der Zuschrift auf S. 6598 beschreiben K. Ok, G. Zou et al. die Synthese des Fluoridsulfats CsSbF2SO4 aus KTiOPO4 durch chemische Substitution. CsSbF2SO4 zeichnet sich durch eine ausgeprägte Frequenzverdopplung aus.

LiMII(IO3)3 (MII=Zn and Cd): Two Promising Nonlinear Optical Crystals Derived from a Tunable Structure Model of α‐LiIO3

“…Recently, by considering the structure merits of the classical NLO materials, aliovalent substitution strategy has been proved to be an effective method to develop the NLO materials with improved properties . For example, many excellent deep‐ultraviolet or infrared (IR) NLO materials including Sr 2 Be 2 B 2 O 7 (SBBO), K 3 Ba 3 Li 2 Al 4 B 6 O 20 F, Li 2 ZnSiS 4 , and Li 2 SrGeS 4 have been structurally designed from the commercialized KBe 2 BO 3 F 2 (KBBF) or AgGaS 2 …”

Enhanced nonlinear optical functionality in birefringence and refractive index dispersion of the deep-ultraviolet fluorooxoborates

“…Nonlinear optical (NLO) materials are the vital components of future photoelectric technologies as they can achieve the tunable laser output by the frequency-conversion technology [1][2][3][4][5][6][7][8][9]. As for deep-ultraviolet (DUV, wavelength λ < 200 nm) region, the NLO crystals, the unique materials capable of generating DUV coherent light through frequency conversion, are of urgent demands in ultrahigh resolution photolithography, photochemical synthesis, and high-precision micro processing [10][11][12][13].…”

Prediction of Fluorooxoborates with Colossal Second Harmonic Generation (SHG) Coefficients and Extremely Wide Band Gaps: Towards Modulating Properties by Tuning the BO3/BO3F Ratio in Layers

“…[1][2][3][4][5][6][7][8][9] However,t he DUV NLO materials are still scarce because they have strict property criteria:w ide transparencyw indow in the UV region (< 200 nm);l arge second harmonic generation (SHG) coefficient (> 1 d 36 (KDP) = 0.39 pm V À1 ); sufficient birefringence to ensure the phase-matching (PM) to DUV region. Herein, five stable structures with the composition of BaB 2 O 3 F 2 (I-V) are discoveredusing the ab initio evolutionary algorithm.…”

“…[1][2][3][4][5][6][7][8][9] However,t he DUV NLO materials are still scarce because they have strict property criteria:w ide transparencyw indow in the UV region (< 200 nm);l arge second harmonic generation (SHG) coefficient (> 1 d 36 (KDP) = 0.39 pm V À1 ); sufficient birefringence to ensure the phase-matching (PM) to DUV region. [1][2][3][4][5][6][7][8][9] However,t he DUV NLO materials are still scarce because they have strict property criteria:w ide transparencyw indow in the UV region (< 200 nm);l arge second harmonic generation (SHG) coefficient (> 1 d 36 (KDP) = 0.39 pm V À1 ); sufficient birefringence to ensure the phase-matching (PM) to DUV region.…”

“…Most importantly,t he influences of BO 3 :BO 3 F ratio and their number density on band gap,birefringence and SHG effects are investigated.Deep-ultraviolet (DUV, l 200 nm) nonlinear optical (NLO) crystals are unique materials that are capable of generating DUV coherent light through frequency conversion in all-solid-state lasers,c onsequently they are in demand. [1][2][3][4][5][6][7][8][9] However,t he DUV NLO materials are still scarce because they have strict property criteria:w ide transparencyw indow in the UV region (< 200 nm);l arge second harmonic generation (SHG) coefficient (> 1 d 36 (KDP) = 0.39 pm V À1 ); sufficient birefringence to ensure the phase-matching (PM) to DUV region. [10,11] More challenges are that some of these properties are contradictory.S pecifically,S HG coefficients are inversely proportional to the band gap as shown in the sum-over-states formula.…”