It's reasonable for me to have a two-way foil for a second-level civilization, right?

"At present, this thing is only a semi-finished product, and it needs a series of purification work before it can be used as a raw material for photonic computer chips."

"Besides, I haven't finished the introduction yet."

Mo Zeyang was stunned: "What else?"

"of course."

Lu Yongchang glanced at Mo Zeyang in surprise: "If it's just this simple property, how could it be the core material of a photonic computer?"

As he spoke, Lu Yongchang stretched out his hand and dragged the holographic image to his side.

"It is still similar to the nature of semiconductors."

"According to the information of Proxima Centauri."

"When the purity of this semi-transparent body is high, the light transmission performance is not strong."

"but!"

"If a little bit of impurities can be added to it, its light transmission performance will be greatly improved!"

"The different types of impurities have different effects."

Hearing this, Mo Zeyang opened his mouth slightly, and his eyes were full of disbelief!

"This, isn't this the dopantability of semiconductors?!"

Mo Zeyang's tone suddenly became excited: "Then, is there any experimental data?"

Lu Yongchang nodded, stretched out his hand and slid in the air.

In the holographic projection, several crude experimental records appeared.

"..." Mo Zeyang looked at Lu Yongchang with question marks all over his head, "That's it?"

Facing Mo Zeyang's question, Lu Yongchang spread his hands, shrugged and said, "That's it."

"Don't ask me, I don't know what these big cockroaches are thinking."

"They delayed such an important experiment until 50 years later."

Mo Zeyang put his hand on his forehead: "My God..."

"It's really... reckless!!"

He reasoned from the heart, if this material fell into his hands.

It is disrespectful to science that he can sleep for 8 hours a day!

Lu Yongchang shook his head with a strange expression: "You can't say that."

"If they really get hold of this material, we probably won't have a good end."

Hearing this, Mo Zeyang also looked a little weird.

"Speaking of it, it seems to be such a reason..."

Lu Yongchang brought back the topic of deviation: "Although the experimental data is insufficient, according to the way semiconductors are used, we can basically determine the direction of the next experiment."

Mo Zeyang repeatedly nodded in agreement.

Compared with rectification, dopantability is more significant for photonic computers!

Such as semiconductors.

The reason why semiconductors can be made into triode transistors is inseparable from this property!

Pure semiconductors have weak electrical conductivity, but semiconductors doped with impurities can greatly improve electrical conductivity!

By the type of doping substance, it can be divided into two types.

A silicon crystal doped with a small amount of phosphorus or antimony is an N-type semiconductor.

A silicon crystal doped with a small amount of boron or indium is a P-type semiconductor.

When the two are connected, it becomes a PN junction.

The so-called diode is realized by PN junction.

As for the triode, it is realized by a PNP junction formed by two PN junctions.

Through these diodes and transistors, various forms of logic operations can be realized!

To put it simply, the translucent material in front of us is actually equivalent to the silicon wafer of an electronic computer!

Thinking of this, Mo Zeyang became extremely excited!

He urged again and again: "Professor, hurry up, quickly verify the accuracy of the Proxima Centauri data!"

"I have a hunch that the photonic computer is already waving to us!"

"Don't worry." Lu Yongchang smiled lightly, "If you want to do a good job, you must first sharpen your weapon."

"If nothing else happens, the newly manufactured ion implanter should be here soon."

……

at the same time.

A Xuannv-[-] slowly landed on the tarmac outside the laboratory.

The hatch opened slowly.

More than ten robots carried a machine out of the cabin of Xuannv No. [-].

"Professor, your customized ion implanter has arrived."

In the laboratory, Zero's voice suddenly sounded: "Do you need to move it in?"

Lu Yongchang was overjoyed: "Hurry up!"

"Send it in!"

"Put it in the prepared clean room."

"Got it, Professor."

After finishing speaking, Zero's holographic image gradually faded.

"Ion implanter?" Mo Zeyang looked at Lu Yongchang with a strange expression.

"Are you using it as a silicon wafer?"

Lv Yongchang smiled and said: "Almost, but I made some changes to make it more suitable for processing semi-transparent materials."

As he spoke, he opened his legs and walked towards the clean room next to the laboratory.

……

In a clean room.

A machine similar to an ion implanter for silicon wafers sits quietly in the center of the clean room.

Lu Yongchang and Mo Zeyang walked into the clean room slowly, wearing clean clothes.

Looking at the machine in front of him, Mo Zeyang took a deep breath.

"professor?"

"Shall we start the experiment now?"

Lu Yongchang nodded noncommittally: "Of course."

"We are not people from Proxima Centauri. Naturally, the sooner we master this key technology, the better!"

As he spoke, he carefully took out a thinly sliced ​​translucent body material.

Even if it is a thin slice, it still appears black and light gray to the outside world.

The reason is simple, the translucent body with high purity has low light transmittance.

Even the side that allows light to pass through looks gray when there is no direct sunlight.

Lu Yongchang quickly put this piece of translucent material into the ion implanter.

"Zero, start the ion implanter."

A slight buzzing sound followed.

In a short time, the inside of the ion implanter was evacuated.

Then, the accelerator starts.

Specific ions are accelerated by the electric field, and go straight towards the sheet-like semi-transparent body!

Under zero precise control, these ions penetrate the material voids of the semipermeable body at just the right speed, and then combine perfectly with it!

Time passed by minute by minute.

The buzzing sound also gradually weakened.

"Professor, the ion implantation has been completed."

Zero's reminder sounded.

Lu Yongchang held his breath slightly, stepped forward and opened the hatch of the ion implanter.

A black flaky substance lay quietly in front of him.

He picked it up carefully and turned it over.

suddenly see the light!

It's like a transparent glass!

The translucent body injected with a lot of impurities, at this moment, completely showed its true appearance!

Chapter 306 The crisis that passed by

Seeing Lu Yongchang's slow movements, Mo Zeyang sweated on his forehead anxiously.

But unfortunately, he couldn't rush.

He could only stand aside and wait silently for Lu Yongchang to complete the action in his hand.

Finally, Lu Yongchang turned around.

At this moment, he finally witnessed this piece of material that serves as the core of the photonic computer.

The front side, or the light-transmitting side, looks like a piece of ice just taken out of ice water.

Because the concentration of implanted ions is different, the degree of light transmission in different regions of the "ice sheet" is also significantly different.

The part with the lowest concentration of ions is dull ground glass.

In the part with the highest concentration, you can clearly see the scene on the back.

As Lu Yongchang slowly turned over the translucent body material in his hand, all the magical scenes were replaced by an extremely deep black.

"Success, success..."

Seeing this miraculous scene, Mo Zeyang murmured to himself.

Lu Yongchang also nodded with a smile.

"That's right, from now on, the research on photonic computers is on the right track!"

……

The breakthrough of key materials has greatly advanced the development of photonic computers.

But it does not mean that the photonic computer has been successfully developed.

On the contrary, they are still far from a real photonic computer.

However, compared with the previous research methods like headless flies, research with a clear direction is even more exciting!

A month later.

Mo Zeyang knocked on the door of Lu Yongchang's office with a pair of big panda eyes.

"professor!"

"Professor, we succeeded!"

……

The door opens automatically.