Came back with black technology

It is currently impossible for Xie Qingyan to participate in experimental projects related to materials science. Outsiders don't know him, but he knows what he wants.

It is impossible to bring about major changes in the entire material science field in a short period of time, so he has to study slowly.

Then it is better for him to propose some possibilities for professionals to study, and he should play his best role and strive to promote technology in other directions.

The teachers of materials science are always determined. Their persistence really surprised him, but he also admired it.

But in order not to waste each other's time, Xie Qingyan felt that it was necessary for him to explain clearly to them, so that Gao Yueqing and the other two senior sisters and brothers in their laboratory could feel at ease.

After this discussion, I realized that many teachers did not know that he was the leader of the holographic project team, and thought he was just a student who was "abducted".

If it is the person in charge, then there is really no way to poach people, and the teachers of material science can only give up regretfully, but for the loss of a good seedling, their eyes are more pitiful and pitiful.

Xie Qingyan: ......... not, really not the teachers.

When my own study came to an end, it happened that Xie Qingyan had almost completed the study materials that Gao Yueqing and the two senior brothers and sisters had compiled.

The focus of holographic experiments is to make computational holograms, and the techniques and theories to be mastered are highly comprehensive, including the theory of interference and diffraction of light waves, modulation and encoding methods of spatial signals, data processing, program design, etc.

The part compiled by Xie Qingyan is just some basic information, only about light wave drying and diffraction theory and data processing.

It's not that he's keeping secrets, but after all, these contents are really difficult to learn. Even professional researchers have to spend a lot of time to understand them. If they really want to learn them all, it may take how long it will take.

Xie Qingyan's focus is to carry out experiments. Although he has not fully understood the content of holography, he can enter the formal experiment stage after mastering the basics.

Furthermore, the modulation and coding of space signals and program design he applied are all based on his rich knowledge of interstellar theory.

This part of the content is currently only he can do it alone. If he wants to help, then he thinks that it is possible to study and make it with him only because Jiming is here.

Previously, Xie Qingyan and Ji Ming worked together to complete digital holography, but now the computational holography is based on

on this basis.

However, the research of computational holography actually has multiple directions, and the principles are similar but different.

The first type is similar to ordinary optical holography, and different holograms are constructed according to the relative position of the three-dimensional object and the coordinate position of the calculation surface.

At present, it can be divided into three categories, and the complex wavefronts recorded by them are different, and the techniques applied are also different.

The second type is distinguished according to the different properties of the hologram transmittance function distribution, which can be mainly divided into amplitude type and phase type.

The third category is distinguished according to the different coding techniques used in production, and there are more categories in this category.

Xie Qingyan wants to find the most suitable direction to make holograms in each category.

After going through various comparisons, he finally locked his target on the phase-type computational hologram of the second type.

The phase type calculation hologram does not attenuate the energy of light, has high diffraction efficiency and high hologram quality.

If you want to make games in the future, the most important thing you should not forget is the problem of response. The high-quality diffraction efficiency can ensure a stronger user experience. The only problem is probably that the production process of phase-type holograms is more complicated than others.

But this problem is not a big problem for Xie Qingyan, after all, transformation is always easier than creation.

When the first computer was first successfully developed, it had a volume of 170 square meters and used 18000 electron tubes. However, less than a hundred years after it was created, it has evolved into the scale that every household has a computer today. The volume is getting smaller and smaller, and the process is getting more and more refined and simple.

The production process is complicated, and there are ways to simplify it.

"Qingyan, are you installing a holographic projector?"

Gao Yueqing walked into the laboratory and saw Xie Qingyan holding four instruments in his hands, which were being installed in four corners.

He had studied the first-generation holographic projection images produced by Xie Qingyan before, and watched the second-generation video many times, and immediately recognized that these four instruments were the holographic projectors that appeared in the video.

"Are we going to experiment with a holographic projector?" he said excitedly.

Seeing his excited look, Xie Qingyan couldn't help laughing: "That's right, I modified this one and used it in our experiment alone."

When doing experiments in Interstellar, it is very common for holographic images to assist in the delivery of various materials, and it is more convenient and quick to use. Of course, in the Interstellar era, there is also artificial intelligence to assist in the retrieval and recording of data. Generally speaking, it is similar to the current movie. Iron Man

Similar to his smart butler.

Artificial intelligence has not been produced yet, but at least holographic projection must be used first.

Speaking of this, Xie Qingyan suddenly thought that it would be better to wait for the production of the holographic projection to come to an end, and then go to study artificial intelligence. Anyway, he will continue to do experiments in the future, so he can't just let it go.

"Then... wait a minute and it's installed, can I try it out?"

Gao Yueqing's words interrupted Xie Qingyan's thoughts, and he nodded: "Of course, it was originally equipped so that we can all use it."

"There will be another set of equipment delivered in a while, and then we will have one set for each of us."

Cheng Xuan is mainly responsible for the production of the holographic equipment. Now the set he has in hand is specially made for his use. After the research institute has finished the research, another batch will be produced.

Xie Qingyan had already arranged to install it for the laboratory on the school side. At least Teacher Gao wanted one set, and the two assistants, brothers and sisters, also wanted one set.

"Okay, okay, then we will use one set per person!"

Gao Yueqing was so excited that he stepped forward to help Xie Qingyan, and the two of them worked together to install the holographic projector and connect it to the computer.

Seeing that Xie Qingyan took the small stick that looked like Harry Potter's magic wand again, Gao Yueqing said, "This is a sensor, right?"

"Yes, right now, there is no way to directly use hand sensing or gesture recognition without props, so this sensor is still needed to control." Xie Qing said, "The principle of this stick is also very simple, that is, spatial signal sensing. Pretty much the remote."

The process of science is that the exterior looks from complex to simple, and human operation becomes more and more convenient, while the interior is reversed from simple to complex, and more and more functions need to be realized.

Xie Qingyan does not plan to adjust this function in a short time, because it is of little significance on the one hand, and is also limited by materials on the other hand.

Gao Yueqing was also very interested in the controller in his hand, thinking that he would have to take a closer look at the manufacturing and design principles inside later.

The two spent a long time in the laboratory tinkering, tried to assemble mechanical hardware with holographic projection, made a simple model, and played it as a game.

Obviously, the old and the young had a great time, especially the old one.

It was not until he finally finished the model that he reluctantly returned the seat to Xie Qingyan.

The latter was funny, and said: "Teacher, if you are interested, we will continue to play next time."

Gao Yue Qing San

Ran: "No, I'm more interested in how to make it than playing with the finished product."

"Yes." As expected of Teacher Gao, "By the way, Teacher, what do you want me to do when you come here at this time?"

"Oh, by the way, I came to you because I have something to do, I almost forgot!"

After Gao Yueqing was reminded like this, he suddenly remembered the business.

"I wanted to invite you to teach those kids in our class."

"Huh? Class?"

"Yeah, those kids have quarreled with me several times, it's really annoying, and you can decide what to say, as long as it's related to holographic technology." Gao Yueqing seemed dissatisfied with what he said, but he heard His tone showed that he was not only not dissatisfied, but also very pleased.

The people in their class knew that he had a good relationship with Xie Qingyan, so they beat him hard, hoping to let the young man who had made great achievements in the field of holography to give them a lecture.

Existing resources, of course, must be used well, how can they be easily let go?

"...Holographically related?"

Xie Qingyan seriously suspected that their focus was not on the holographic technology, but to ask him about his progress and gossip about him.

Don't think he doesn't know, the news about him on the Internet has always been the most popular, and the slightest sign of trouble can be on the hot search.

The so-called close to the water and the moon first, they probably have this idea.

"I'll just ask for your opinion. It doesn't matter if you don't want to. Those boys are relying on me to lose their temper with them." Gao Yueqing added.

He saw Xie Qingyan's expression was a little drifting, as if he was hesitant.

Although I also think it is really good to let Xie Qingyan take a class or give a lecture, but this is based on not affecting him personally.

As Xie Qingyan's assistant, Teacher Gao knew how busy the person in charge was.

Coupled with the fact that he is at an age where he can do his best, if he is asked to teach graduate students, others will not be uncomfortable, but he will be afraid that he will be awkward.

Xie Qingyan came back to his senses, smiled and said: "It's okay, it's not a problem, teacher, you can arrange it, and then just let me know in advance."

In the past, he was occasionally invited to various famous colleges and universities to give speeches in Interstellar, and he was not afraid of facing a huge crowd of people. Now he just talks about his experimental progress in a class, no problem at all .

"Success! Then I'll make arrangements, and I'll discuss it with you later."

After leaving the laboratory and returning to the office, Gao Yueqing posted the good news in the class group

Go down and tell them that Xie Qingyan agreed to their request.

It was as if a deep-water torpedo was dropped in the originally quiet class group, and many diving parties immediately exploded. Everyone had a very uniform format, but there were rows of question marks and exclamation marks.

Thinking of the appearance of the students in the class at this time, Gao Yueqing couldn't help smiling until his eyes narrowed.

At this moment, his office was broken into by other teachers.

"Mr. Gao, is it true that classmate Xie is going to give a lecture to your class?"

Seeing the unbelievable expressions on their faces, Gao Yueqing felt extremely proud, straightened his back and couldn't help showing off: "Yes, I asked him just now, and he agreed."

"Agreed?! Then what is he going to say?"

"He didn't say that, he only said that he wanted holographic related content."

"Then our class can also participate! Anyway, one class is also speaking, and the two classes are also speaking. We are brother classes!"

"Wait a minute! Lao Gao, you are not authentic! Two classes are speaking, and the same is true for three classes. You can also bring it to our class. Just go to a bigger classroom. Thank you for your lecture. Can't miss it!"

"What? What are you talking about? Classmate Xie wants to give a lecture? Xie Qingyan? Oh, let me tell you, you graduate students can listen, and our senior students can too. They are all in the same major, so let's go together..."

Gao Yueqing:? ? ?Wait a minute, what's going on?

Later, the principal smiled and invited Xie Qingyan to the office, discussing with him when to hold a lecture for the whole school.

Qing Yan: ...