According to Hong Kong media, a breakthrough in laser technology may provide the Chinese military with the capability to disable the sensors on enemy missiles or even satellites by using trunk-sized portable devices, The size of the container on the battleship device.
A research team led by Professor Li Zhiyuan, Institute of Physics, Chinese Academy of Sciences, reported on September 23 that they have reduced the size of a precision device capable of emitting high-frequency lasers to a single crystal, according to Hong Kong's South China Morning Post website.
This means, according to the report, that the size of large, ultra-fast laser launchers currently used on board warships to disable heat-tracking missiles may shrink to the size of a handbag and be mounted on planes, tanks, or even On the soldiers
Liu Qiang, a professor of laser optics at Tsinghua University in Beijing, said this is a breakthrough achievement.
Liu Qiang also said that nobody had ever been able to use such a crystal-sized device to emit such a high-frequency laser.
He said their technology will significantly simplify the process of firing high-frequency lasers and reduce the size of related devices.
Part of this group's research was published in the latest issue of the Physical Review Communications of the American Physical Society.
Reported that since the invention of the laser technology, scientists have been working to shorten the wavelength to increase the frequency of the laser beam. The higher the frequency, the more energy the photons carry.
Often the pulses generated by an ultrafast laser device can reach petaflops. However, despite decades of development, their usefulness has largely been limited to laboratory and eye surgery due to cost and sophistication.
According to reports, many countries have been accelerating the development of this technology for military applications.
For example, the United States Navy allegedly commissioned a research project in 2012 to develop an ultra-fast laser system that would disable the infrared sensors on missiles.
It is based on the logic that attacking sensors with high-energy photons is much easier than relying on lasers to destroy heavy metal shells.
In addition to causing damage to enemy targets, it has been reported that ultrafast lasers can also be used as an easy-to-use tool for handling encrypted communications and detecting stealth aircraft. However, such devices are cumbersome for military applications. Although researchers have developed many ways of generating high-frequency laser beams, these require the assembly of such devices in large rooms, and the components of the device are susceptible to external disturbances such as vibration.
Reported that Li Zhiyuan's team said it has solved this problem. They developed a special type of crystal from lithium and niobium that transforms an ordinary laser beam into a high-frequency light wave with a wavelength of up to 350 nanometers.
The team wrote in their report that the technology "points to a very promising method that can greatly enhance" the power of laser technology. "
Liu Qiang said that the biggest challenge is the energy loss in the frequency conversion process.
He said the larger the laser system, the more serious the energy loss.
Reported that Li Zhiyuan crystal conversion efficiency is 18%, which means that more than 80% of the energy will be lost.
But Liu Qiang said that for an ultra-fast laser system, this efficiency is still "very high."
Reported that Liu Qiang said that if they can achieve the efficiency they claim, I think their technology can quickly be used in the field.
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