Guochun Zhang

Title: **Guochun Zhang: Innovator in Nonlinear Optical Crystals**

Introduction

Guochun Zhang, an accomplished inventor based in Beijing, China, has made significant contributions to the field of nonlinear optical materials. With two patents to his name, Zhang's innovative work in developing compounds and crystal structures has the potential to revolutionize optical applications.

Latest Patents

Zhang's latest patents include the development of the Li4Sr(BO3)2 compound and the corresponding nonlinear optical crystal. This invention relates to nonlinear optical crystal materials, specifically highlighting a LiSr(BO)2 nonlinear optical crystal and its preparation method. The crystal exhibits an impressive second harmonic conversion efficiency at 1064 nm, approximately double that of the established KDP crystal. Additionally, it has a UV absorption cut-off edge of less than 190 nm and remains stable without disintegration. By utilizing a flux method with specified flux agents, large-size and transparent LiSr(BO) nonlinear optical crystals can be successfully grown. With stable physical and chemical properties, moderate hardness, and ease of processing, these crystals are suitable for the preparation of nonlinear optical devices for applications in the ultraviolet and deep-ultraviolet spectrum.

Another notable patent includes nonlinear optical crystals of the compound Na3La9B8O27, along with the production method and applications thereof. Zhang's research indicates that large single crystals of NaLaBO can be obtained through the flux method. These crystals are noted for being non-hygroscopic and demonstrating robust nonlinear optical effects and excellent mechanical properties, making them ideal candidates for frequency conversion of blue-green wavelength lasers.

Career Highlights

Throughout his career, Guochun Zhang has worked at esteemed institutions, including the Chinese Academy of Sciences and the Technical Institute of Physics and Chemistry. His research here has allowed him to push the boundaries of optical technology and explore the capabilities of nonlinear optical materials.

Collaborations

In his innovative journey, Zhang has collaborated with notable colleagues, including Yicheng Wu and Peizhen Fu. Their combined expertise has contributed to the successful development and patenting of groundbreaking optical materials.

Conclusion

Guochun Zhang stands out as a pioneering inventor in the realm of nonlinear optical crystals. Through his patents and collaborative efforts, he continues to advance the scientific community's understanding and application of advanced optical materials, paving the way for future innovations in nonlinear optical technology.