1. Application of laser technology in the military field
The application of laser technology in the military field is basically to carry out reconnaissance and anti-reconnaissance, conventional strike, precision guidance, attitude analysis and confidential communication under the application of the characteristics of space-time and dryness with good laser monochromaticity, strong directivity and high brightness. etc. In terms of offense and defense, the offensive advantage of taking the initiative is more significant, so the most attractive application of laser technology in the military field is the laser weapon….
A laser weapon is a directional weapon that can directly destroy a target or lose its utility under the use of a laser beam. Its components basically include components such as a laser, a launching system, a precision aiming, a beam steering, and a tracking system. The laser weapon has a flexible steering, a fast attack speed, no electromagnetic interference, and can achieve a precise strike, so it has attracted much attention. Combined with specific operational uses, it consists primarily of strategic laser weapons and tactical laser weapons. Strategic laser weapons represent high-energy laser weapons such as intercontinental missiles, communications and reconnaissance satellites in space that can reach thousands of kilometers of attack. For example, in the British Ama Island War, the United Kingdom used laser weapons when it was against Argentine aircraft, causing the aircraft to be destroyed. The tactical laser weapon relies on the energy of the laser to emit a powerful laser that can strike the enemy. Such weapons can cause direct damage to local personnel in general with conventional weapons, which can cause damage or failure of individual photoelectric measuring instruments, which can cause strong damage to tanks and aircraft. These weapons can achieve a strike distance of up to 20km, most notably laser cannons and laser guns. With the continuous development of laser technology, high-energy laser weapons in the future high-tech war will inevitably become the main weapon for space competition.
2. Application of laser technology in the medical field
Laser is still a high-end technology in the medical field. The application of laser technology in clinical practice consists of three parts, one of which is the application of laser in basic medical research. The biological effects of laser are studied through the interaction of laser with human organ tissues, biomolecules and cells; the second is laser diagnosis. The laser is used as an information carrier. Under the advantage of good laser monochromaticity, spectral analysis of the functions of histopathological and pathological conditions is carried out, and individual pathogenic factors are identified. The third is laser treatment. The laser is used as an energy carrier to treat the laser under the application of tissue biological effects. With the continuous development of laser technology, it has gradually become a clinical treatment with remarkable effects, and is an important technology to promote the development of medical diagnosis. Laser surgery is the main application of laser technology in the medical field. Under the application of laser energy to generate high energy and focus on precise monochromatic light, there will be local high heat generation in human tissue. Under the application of laser Treatment can be achieved by removing or destroying the target tissue. However, it is still impossible to rule out the false negative of cancer cells, and there is still a high proportion, so it is critical for the scientific judgment of laser fluorescence spectroscopy on tumor diagnostic criteria.
3. Application of laser technology in metal material processing
On the one hand, laser welding technology. Laser welding mainly includes the following features:
(1) fast speed;
(2) small deformation;
(3) Non-contact.
It is very suitable for in-line processing of continuous metal materials. In the metal material processing process, the application of laser welding technology can improve the welding efficiency without pollution. In the context of the growing processing technology, the level of laser welding technology has also been significantly optimized. The use of laser welding technology can support curve welding, which contributes to the improvement of body flexibility, and can also be welded based on the special requirements of welding materials. Laser welding technology mainly includes plasma arc welding technology, laser and arc welding technology, double laser beam welding technology and high frequency induction heat source composite welding technology. Each type of laser welding technology has different characteristics, and the technicians should closely combine with the actual situation. Scientifically select specific technologies to properly apply laser welding technology.
On the other hand, the laser is punched. Laser drilling is considered to be a relatively traditional metal material processing technique with higher accuracy than other perforating techniques. The technology has a long history of development, and the earliest application is in the watch industry. Western countries have relatively rich experience in the application of laser drilling technology, and the application time is much earlier than that in China. There are still some areas where laser drilling technology needs to be perfected and adjusted. It is necessary to further develop laser drilling technology. The gap between laser drilling technology in China and Western countries is shortened. At the same time, it is necessary to combine with the actual situation during the specific research period, and take the advanced experience of Western countries as a reference to promote the improvement of the level of laser drilling technology.
