In today’s era, various developed countries have placed non-linear optical crystals, laser pointer devices and applications on a priority development position, and have been listed as important strategic measures in their respective high-tech development plans, with great attention and support. From the perspective of the technological level of the entire field of nonlinear optical crystals, devices and applications, developed countries such as the United States, the United Kingdom, Germany, and Japan are at the forefront of the world. From the initial principles, new materials, device development, and equipment Wait, they have made important contributions. As a major industrial country, it occupies a monopoly position in large-scale production of nonlinear optical crystals such as LiNbO3. In terms of device manufacturing, due to the strong overall technical strength and good industrial foundation, developed countries such as the United States and Europe have a decisive advantage.
It occupies an important position in the field of nonlinear optical crystals. The growth technology of various nonlinear optical crystals occupies the international advanced level. All the crystal growth methods existing abroad have it. Almost all important nonlinear optical crystals have been grown. Some Important crystals meet the needs of major domestic projects, and a number of high-tech crystals have become commodities. “Outline of National Medium- and Long-term Scientific and Technological Development Plan (2006-2020)” clearly lists “laser technology” as one of the eight frontier technologies. ) ”Frontier technologies of“ laser technology ”and“ new material technology ”and“ science of condensed matter and new effects ”are in line with the important strategic requirements of national scientific and technological development.
If various nonlinear optical effects in nonlinear optical crystal materials can be used to successfully expand the laser window to ultraviolet, visible, infrared and other ranges, and the spectrum is continuously distributed, as shown in Figure 1, the so-called White light laser or sun laser. Such a new technology will undoubtedly greatly improve the development level of green laser pointer technology, greatly expand the size of the laser family members, greatly enhance the level of existing applications of laser technology, and give birth to many unprecedented new applications. Therefore, such technology will have great application value, and the entire chain area covered by it is a blank market with trillions of dollars.