A novel promising infrared nonlinear optical selenide KAg₃Ga₈Se₁₄ designed from benchmark AgGaQ₂ (Q = S, Se)

Abstract

Introduction of potassium into the structure of AgGaQ2 (Q = S, Se) brings a new nonlinear optical active selenide KAg3Ga8Se14 with a novel structure-type and balanced performance.

Phase Matchability Transformation in the Infrared Nonlinear Optical Materials with Diamond‐Like Frameworks

“…[ 10–16 ] Among the desirable structural features, one can achieve such coexistence in chalcogenides in which polarizable tetrahedra are assembled by aligning in the same direction to form 3D diamond‐like framework (DLF) structures. [ 17–19 ] Since the DLFs can cause the effective superposition of the second‐order susceptibility tensor of the tetrahedra, it is expected to achieve significant improvements on SHG response. In addition, while maintaining the strong SHG response, it is also a common strategy to increase the E g of the material by filling the DLFs with alkali metal or alkaline earth metal cations.…”

A Novel One‐Step Synthesis of Silicon‐Containing Arylacetylene Resin Catalyzed by Et2Zn with Excellent Processability and Thermal Properties

“…Diethylzinc (Et 2 Zn) is a metal organic compound which is widely used for the purpose of organic synthesis. [27][28][29][30] Okura et al developed a coupling reaction for alkynylzinc reagents with aryl and alkenyl iodides and without the aid of transition metal catalysis by mixing and heating all the materials including terminal alkynes and Et 2 Zn (in a 2 : 1 ratio). [31] Huang et al reported the first example of Et 2 Zn mediated silylation of 1-aklynes and chlorosilanes and mechanistic studies that support Zn alkynilides as intermediates in the reaction.…”

Introduction of Li into Ag-Based Noncentrosymmetric Sulfides for High-Performance Infrared Nonlinear Optical Materials

“…Infrared (IR) second-order nonlinear optical (NLO) materials are important for practical applications due to their capacity of widening the laser wavelength. − In the last few decades, many novel IR NLO materials have been reported; − however, only AgGaS 2 (AGS), AgGaS 2 (AGSe), and ZnGeP 2 (ZGP) are technically useful. Though they can satisfy the market’s requirements to some extent, they are still plagued with several inherent shortcomings.…”