Under the ever-increasing national economic level, information modernization and laser technology have also been further developed. Laser technology has been widely recognized in military, medical and other related fields due to its many advantages. It can be said that laser technology is a top-notch technology in various industries, and it is a series of technologies generated by applying lasers in various fields, and has attracted the attention of relevant personnel in various countries. In view of this, this paper briefly introduces the application of laser technology in military, medical and metal material processing.

1. Application of laser technology
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

2. 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

3. 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.

4. 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 laserwelding 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

5. 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.