The stock investment of laser pointer has been cut off

The stock investment of laser pointer has been cut off. 
Must first have a temperature of around 100 million degrees; involved in the response of the particle density is high enough to maintain a certain reaction time, ie 'nτ' value more than 1 million billion (sec / cm 3), which is well-known the Lawson criterion. Some countries, the laboratory has made a lot of basic research work in this type of laser device. United States, France has begun the construction of more large-scale giant lasers, expect to be able to achieve a laser thermonuclear ignition. China from the 1960s that began the study of inertial confinement fusion (ICF) and the Chinese Academy of Sciences and Chinese Academy of Engineering Physics from the 1980s, under the guidance of Wang Ganchang, Wang Daheng, joint research, the Shanghai-ray machines and Changchun-ray machines are cooperative unit. laser pointer can be standardized if necessary.
The early sixties, when the laser fusion research in China has just started, Qian Xuesen image to that: your cause is man-made a little sun on Earth! The key equipment in the ICF study is a high-power lasers. SG - I SG Ⅰ, 1964, a famous nuclear physicist Academician Wang Ganchang independently proposed laser fusion ideological, and suggested that a specific program in accordance with this Initiative, China's first laser Professional Institute - Chinese Academy of Sciences, Shanghai Institute of Optics The machine began the development and application of high power laser drivers in 1971, and deuterium - deuterium collisions of neutron. Chinese Academy of Engineering Physics and the Chinese Academy of Sciences to work together in 1978, ICF research into a new stage of comprehensive development. The design of laser pointer should be updated.
The past twenty years, committed to the development and application of neodymium glass laser drive - "SG" series devices, has made remarkable progress, and promote our inertial confinement fusion experiments and theoretical studies, and a place in the international arena. 1977, the Shanghai-ray machine using a 100 billion-watt laser system devices, inflatable glass shell targets irradiated nearly hundredfold body compression. Laser fusion research in China has entered an important stage of development of the step argument to the principle of implosion, and laid the foundation for future long-term sustainable development. In 1980, Wang Ganchang the proposal put forward to the construction of pulse power of 1 trillion watts solid state laser device, called a laser on the 12th experimental device (SG I). The loss caused by storage of laser pointer should be reduced to the lowest level.The commission of laser pointer also plays the important role
Laser on the 12th experimental device is built in the Shanghai Institute of Optics and Fine Mechanics, a large high-power laser experimental setup, located in Qinghe Road, Jiading District, Shanghai No. 390 light machine designed in 1983 by the Shanghai-ray machine, with a total construction area of 4612 square meters, four-story reinforced concrete frame structure, with a total height of 15 meters.