From a university student to a chief academician

Chapter 74 Accidentally Breaking the Technology Blockade

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

Jiangcheng and Sand Dunes are not far away. It is the capital city of the neighboring province, and it takes an hour to get there by high-speed train.

After leaving the Jiangcheng high-speed railway station, someone came to pick up Ye Fei.

First, send Ye Fei to his place of residence, put down his luggage, and then take Ye Fei to the laboratory.

Professor Gao was already waiting at the door of the laboratory, and beside him stood a slightly fat middle-aged man wearing glasses.

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

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

"Hello, Ye Fei!" Professor Ma laughed.

After exchanging pleasantries, everyone entered the laboratory.

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

Professor Ma said: "Everyone, come here!"

Everyone stopped their work 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 period of time to build an algorithm for our experiment."

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

"Okay!" Ye Fei nodded.

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

Facing the crowd, Ye Fei said, "I will be working here for the next two days, and please support me a lot, thank you!"

Professor Ma said: "Okay, everyone leave!"

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

Ye Fei nodded.

Afterwards, Professor Gao left and Ye Fei started working.

He found the parameters and basic information of the experiment.

These are enough to build the algorithm, and then just connect to the interface of the code package that runs through the experiment.

The particle swarm algorithm is designed by simulating the predation behavior of birds, also known as PSO.

is an intelligent algorithm.

Its production process is divided into initialization, individual extremum and global optimal solution, update speed and position formula and termination condition.

In the afternoon and evening two days later, Ye Fei let out a long breath and said, "It's finally finished."

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

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

"It's all good?" Professor Ma said in astonishment, "You've only used it for two days!"

Ye Fei nodded and said, "Two days are enough to build the algorithm, and it's not a difficult thing."

He is a mathematics student, and it is really not difficult for him to build an algorithm.

"Then let's go and have a look!" Professor Ma looked 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 very satisfied with a scanning speed of around [-].

The scanning speed of [-] has reached the international average level.

As for breaking the speed of [-], he didn't even dare to think about it.

Only in some developed countries, the scanning speed of laser technology has reached more than 3000.

Soon, they went into the lab, connected the algorithm and the package together, and started experimenting.

With everyone busy for a while, turn on the device.

There was a sizzle sound.

I saw an iron plate being formed under the fiber laser cutting machine, then fired in a high-temperature crystal furnace, rolled out, cooled, and finally welded.

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

Professor Ma stepped forward quickly and walked in front of the newly assembled laser.

The laser is not big, square, half the height of a person, and shaped like a small refrigerator.

"Quickly test the performance!" Professor Ma urged.

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

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

The non-interface tester is to put two circular, 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 screen, everyone's eyes widened in surprise and they couldn't believe it.

[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, the data is wrong!"

Professor Ma immediately said: "Change to another computer and test."

Everyone moved another computer and tested again, but the data was exactly the same without any change.

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

"The scanning speed is actually over [-], while the laser power is less than [-]."

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

And the laser they made is a gas laser, 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 communication and marine military fields.

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

The laser data they produced is very impressive.

In the world's most advanced countries, the scanning speed is only in the early [-]s, but the laser power of such a laser is in the early [-]s.

So, they made a laser with a scanning speed comparable to it, but with a higher laser power.

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

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 excitedly, and said: "Success, success, we have broken the foreign technology blockade." "

"Moreover, it is more advanced in technology than foreign ones."

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

So many years of hard work, isn't it just for this moment!

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

Over the years, in terms of laser technology, Xia has been heavily blocked by the international community.

But today, they overcame obstacles and broke the technical blockade.

"Yeah, it worked."

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

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

He smiled and said, "Professor, you are the ones who made the most of the contributions. I just built an algorithm, and you guys did the rest."

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

Everyone nodded, yes, we are all great heroes.

"Everyone organizes the data, and I will notify the people above."

"I'll treat you tonight. If you don't get drunk, you won't return."

"Ye Fei, you come too."

Ye Fei really wanted to say that he was leaving, but seeing how happy everyone was, it was hard to say that.

(End of this chapter)