From university academician to chief academician

On Saturday morning, Ye Fei took the high-speed train to Jiangcheng.

Jiangcheng is not far from Shaqiu. It is the capital city of the neighboring province and can be reached in an hour by high-speed train.

After leaving Jiangcheng High-speed Railway Station, someone came to pick Ye Fei up.

First, he sent Ye Fei to his place of residence, put down his luggage, and then took Ye Fei to the laboratory.

Professor Gao was already waiting at the entrance of the laboratory. Next to him stood a slightly fat middle-aged man wearing glasses.

After getting off the bus, Professor Gao went up to him, shook hands with Ye Fei and said with a smile: "Ye Fei, let me introduce to you. This is the director of our laboratory, Professor Ma Tiannan."

Ye Fei shook hands with the other party and said with a smile: "Hello, Professor Ma!"

"Hello, Ye Fei!" Professor Ma smiled.

After exchanging pleasantries, everyone entered the laboratory.

Along the way, Professor Gao gave a brief introduction to the laboratory and entered the innermost room. There were many machines and seven or eight people in white coats were busy working.

Professor Ma said: "Everyone, come here!"

Everyone stopped what they were doing and gathered around Professor Ma.

Professor Ma said: "Let me introduce to you, this is Ye Fei from Zhonghu University. You should all know him!"

Everyone nodded, and one of them said, "Professor, you let us read his paper two days ago."

Professor Ma said: "In the next few days, he will work with you for a while to build algorithms for our experiments."

Professor Ma turned to look at Ye Fei and said, "Ye Fei, you will work here next."

"Okay!" Ye Fei nodded.

Professor Ma said: "Do you want to say a few words?"

Ye Fei faced everyone and said: "I will be working here for the next two days. Please give me your support. Thank you!"

Professor Ma said: "Okay, let's all disperse!"

Professor Gao pointed to a computer not far away and said, "Ye Fei, this is your work station."

Ye Fei nodded.

After that, Professor Gao left and Ye Fei started working.

He found the parameters and basic information for the experiment.

These are enough to build the algorithm, and then connect it through the code package interface of the experimental run.

The particle swarm algorithm is designed by simulating the predatory behavior of flocks of birds, also called PSO.

It is an intelligent algorithm.

Its production process is divided into initialization, individual extreme values ​​and global optimal solutions, formulas for updating speed and position, and termination conditions.

Two days later, in the afternoon and evening, Ye Fei took a long breath and said, "It's finally done."

Afterwards, Ye Fei walked to Professor Ma's office.

After knocking on the door and entering, Ye Fei said: "Professor Ma, the algorithm has been built. Come and take a look!"

"Is everything ready?" Professor Ma said in shock, "You only used it for two days!"

Ye Fei nodded and said: "Two days are enough to build the algorithm. It's not difficult."

He majored in mathematics, and it was really not difficult for him to build algorithms.

"Then go and have a look!" Professor Ma was looking forward to it, hoping that Ye Fei's algorithm could solve the current experimental dilemma!

He didn't ask for a big breakthrough, and he was satisfied with a scanning speed of around 2,500.

The scanning speed of 2500 has reached the international average level.

As for breaking three thousand speeds, he couldn't even think about it.

Only in some developed countries, the scanning speed of laser technology reaches more than 3,000.

Soon, they were in the lab, connecting the algorithms and packages together, and starting experiments.

As everyone was busy for a while, they turned on the equipment.

There was a sizzling sound.

I saw a piece of iron plate being shaped under a fiber laser cutting machine, then fired in a high-temperature crystal furnace, taken out to be rolled, formed, cooled, and finally welded.

After one operation, a bunch of parts are formed and then automatically assembled by the machine.

Professor Ma quickly stepped forward and walked to the newly assembled laser.

The laser is not big, square, half a person tall, and looks like a small refrigerator.

"Test the performance quickly!" Professor Ma urged.

"Okay!" Everyone hurriedly carried the laser away, moved it to the office, and turned on the power.

Then connect a non-interface tester to test the performance of the laser.

The interface-less tester is to place two round, half-palm-sized wired suction cups on the left and right ends of the laser.

By pulsing, the performance of the laser is tested.

Looking at the data displayed on the computer monitor, everyone widened their eyes in surprise and disbelief.

[Wavelength/nm: 1364

Laser power/W: ≤1000

Pulse width/ns: 100

Frequency/kHz:≤100

Scanning speed/(nm.s^(-1)): ≤4000

Spot diameter/nm:0.05]

Everyone's jaw dropped when they saw this data.

One of them said: "Professor, the computer is not broken, right? This data is wrong!"

Professor Ma immediately said: "Change a computer and test it."

Everyone brought in another computer and tested it again, but the data was the same, without any change.

"Professor, it's true, it's true."

"The scanning speed is over three thousand, but the laser power is less than one thousand."

Lasers are divided into six categories, namely gas lasers, fixed lasers, semiconductor lasers, single-mode lasers, liquid lasers and digital lasers.

The laser they produced is a gas laser, operating in the 900nm band of gas.

Lasers in this band can be used in fields such as atmospheric detection and differential absorption radar.

It plays an important role in deep-sea communications and maritime military fields.

It can also be used in quantum optics, precision optics, atomic cooling and trapping, medical diagnosis, laser storage, metal processing, laser displays and deep ultraviolet lasers.

The laser data they produced is very impressive.

The most advanced countries in the world have a scanning speed of just over 3,000, but the laser power of such a laser is over 1,000.

Therefore, the laser they made has a scanning speed comparable to it, but the laser power is higher than it.

In terms of performance, it is not as good as the lasers they make.

Don’t underestimate the laser power. The higher the laser power, the greater the impact on the test data.

If the scanning speed is high and the laser power is low, the test data will be more accurate.

Professor Ma's hands trembled with excitement and said: Success, success, we have broken the foreign technology blockade. "

"Moreover, it is technologically more advanced than those abroad."

"Professor!" Everyone looked at Professor Ma excitedly: "We succeeded."

So many years of hard work are just for this moment!

At this time, there was only excitement in their hearts.

For many years, the international community has imposed a heavy blockade on Xia Guo in terms of laser technology.

But today, they are overcoming obstacles and breaking the technological blockade.

"Yeah, it worked."

Professor Ma grabbed Ye Fei's hands beside him and said excitedly: "Thank you, Ye Fei, you are a great hero of the country. Without you, there would be no laser today."

Ye Fei was also very happy, but he didn't expect that he accidentally broke the technical blockade.

He smiled and said: "Professor, you are the big contributors. I just built an algorithm, and you did the rest."

"Without your efforts, no matter how good my algorithm is, it will be useless."

Everyone nodded, yes, we are all great contributors.

"Everyone, sort out the data and I'll notify the people above."

"I'm treating you tonight. I won't come home until you're drunk."

"Ye Fei, you come too."

Ye Fei wanted to say that he was leaving, but seeing that everyone was so happy, it was difficult to say this.