Hongping Wu

Title: Innovations of Hongping Wu in Nonlinear Optical Crystals

Introduction

Hongping Wu is a prominent inventor based in Urumqi, China. He has made significant contributions to the field of nonlinear optical materials, particularly through his innovative patents. With a total of 3 patents, his work has advanced the understanding and application of cesium borosilicate and potassium chloroborate compounds.

Latest Patents

Hongping Wu's latest patents include a cesium borosilicate compound and a nonlinear optical crystal derived from it. The cesium borosilicate compound has a chemical formula of CsBSiO and a molecular weight of 481.15. It is prepared using a solid-phase method. The nonlinear optical crystal, which also has the same chemical formula, does not possess a center of symmetry and belongs to the tetragonal system. Its unit-cell parameters are a=6.731(3) Å, c=9.871(9) Å, and V=447.2(5) ų. This crystal exhibits a wide transmittance range, with a shortest ultraviolet cutoff edge smaller than 190 nm. The frequency doubling effect of the crystal is 4.6 times that of KDP, and it is grown using high-temperature solution spontaneous crystallization and flux methods. The crystal is advantageous due to its high growth rate, transparency, low cost, and excellent mechanical properties, making it suitable for nonlinear optical devices.

Another notable patent is related to a potassium chloroborate nonlinear optical crystal, which has a chemical formula of KBOCl. This crystal also lacks a symmetric center and belongs to the rhombohedral crystal system. Its space group is R3m, with unit cell parameters of a=10.0624(14) Å, b=10.0624(14) Å, c=8.8361(18) Å, Z=3, and V=774.8(2) ų. The crystal demonstrates a powder second harmonic generation efficiency approximately three times that of KDP and has a Mohs hardness of 4-5. It is synthesized through a solid-state reaction and grown using a flux, resulting in a large size and short growing period.

Career Highlights

Hongping Wu is affiliated with the Chinese Academy of Sciences, where he conducts his research and development in nonlinear optical materials. His work has