"Sister Yanran, what is holographic technology?"

At the base of Tiger Roaring Ridge, in Mo Yanran's laboratory, Aya looked at Mo Yanran with a wistful face, and her eyes flashed with the desire to learn. Beside her, the other technicians in the laboratory also gathered around and looked at Mo Yanran with the same eyes.

Mo Yanran stretched out her hand and pushed the gold-rimmed eyes on the bridge of her nose, and then said unhurriedly, "The so-called holographic technology refers to the technology that uses the principle of interference and diffraction to record and reproduce the real three-dimensional image of the object. ”

The crowd watched him silently, and no one interjected.

"Last time, I told you about interference, diffraction and three-dimensional imaging, and holographic technology is a science and technology based on these principles, and it is a very advanced discipline." Mo Yanran's voice is clear, it sounds very pleasant, during this time, every day during the noon break, she has told these people some knowledge, although they are still relatively simple in later generations, but these people sound relishful and very serious.

"The first step of holographic technology is to use the principle of interference to record the light wave information of the object, which is the shooting process: the photographed object forms a diffuse object beam under laser irradiation; The other part of the laser is used as a reference beam to shoot on the holographic negative, which is superimposed with the object beam to produce interference, and converts the phase and amplitude of each point on the object light wave into the intensity of spatial variation, so as to record all the information of the object light wave by using the contrast and spacing between the interference fringes. The negative that records the interference fringes becomes a hologram, or hologram, after being developed and fixed.

The second step is to use the principle of diffraction to reproduce the light wave information of the object, which is the imaging process: the hologram is like a complex grating, and under the irradiation of a coherent laser, the diffracted light wave of a linearly recorded sinusoidal hologram can generally give two images, namely the original image (also known as the initial image) and the conjugate image. The reproduced image has a strong sense of three-dimensionality and has a realistic visual effect. Each part of the hologram records the light information of each point on the object, so in principle, each part of it can reproduce the entire image of the original object, and through multiple exposures, multiple different images can be recorded on the same negative, and they can be displayed separately without interfering with each other. ”

In order to make them understand, Mo Yanran had already told them all the relevant knowledge in advance, so everyone didn't sound too difficult, and Aya and Tan Tianyou and others sounded more relaxed.

Seeing that everyone was still listening, Mo Yanran continued, "The holographic principle is a system that can be fully described in principle by some degrees of freedom on its boundary, and is a new ...... based on the quantum nature of black holes."

Her narration lasted for an hour, until the electromagnetic communicator on her wrist rang, and then she stopped.

"Because it has the characteristics and advantages of recreating the stereoscopic image is conducive to preserving precious art materials for collection, every point is recorded on any point of the hologram when shooting, once the photo is damaged, it does not matter, the three-dimensional sense of the holographic photo is strong, the image is realistic, and the characteristics and advantages such as the laser can be displayed in various exhibitions, so the holographic technology is widely used in various forms of fluctuations, such as X-rays, microwaves, sound waves, electronic waves, etc. As long as these fluctuations are sufficiently coherent to form an interference pattern. ”

The electromagnetic communicator emitted a low buzzer and vibrated gently, reminding Mo Yanran, who was a little fascinated and didn't want to stop.

Turning his head to look at the electromagnetic communicator on his wrist, Mo Yanran saw that it was a message from Yan Beifeng, so he hurriedly ended today's lecture, and then walked towards the house, "Optical holography can be applied to stereoscopic films, television, exhibitions, microscopy, interferometrics, projection lithography, military reconnaissance and surveillance, underwater detection, metal internal detection, preservation of precious historical relics, artworks, information storage, remote sensing, and other aspects." Okay, that's all for today, and I'll give you the following tomorrow. ”

Everyone was still unsatisfied, but knowing Mo Yanran's temper, they had to return to their seats with regret and continue their respective work.

Aya shook her long hair tied into a ponytail, jumped back to her job happily, and began to get busy, she was in a very good mood, because the knowledge that Mo Yanran talked about today made her seem to see another world, and the curiosity in her heart was hooked.

"Come early tomorrow, and then you can continue to listen to Sister Yanran deliver those things." Aya smiled, but the work in her hand did not fall, and she still worked in an orderly manner.

Mo Yanran walked into her office, closed the door with her hand, then turned on the communicator, and immediately heard the deep voice of Yan Beifeng from inside, "Mo Yanran, Luo Xiao is back." ”

"What, Luo Xiao is back?!" Mo Yanran's voice suddenly raised an octave, which shook the ears of Yan Beifeng on the other side, and quickly moved the communicator on his wrist into the distance, and continued, "This time the Japanese attacked Hidden Dragon Mountain, but they helped us, and now Hidden Dragon Mountain has been merged and become the Hidden Dragon Clan, and the strength of the Yanhuang Legion has increased by one point." I can hear that Yan Beifeng is also in a good mood, and his voice is full of joy.

Mo Yanran didn't care about any of this, what she cared about was that Luo Xiao was back, so she said to Yan Beifeng and went over immediately, and then turned off the communicator.

After turning off the communicator, Mo Yanran leaned back in her chair and took a few deep breaths, calming down her excitement a little, she didn't know why she was going to see Luo Xiao, she was so nervous?

Reaching out and pulling her unkempt hair, and looking at the colorful work clothes on her body, Mo Yanran not only frowned, "No, how can I go to see Luo Xiao like this." ”

With this in mind, he took off his overalls as fast as he could, and then opened the door to his quarters......

In the laboratory, Tan Tianyou was holding an experiment report in his hand and was communicating with Aya in a low voice, when suddenly the door of Mo Yanran's office opened, and they looked up and were stunned for a moment.

The experiment report in Tan Tianyou's hand hung down unconsciously, sweeping Aya's arm, but she didn't feel it at all, and she also stared at the door of the office in a daze.

At the same time, everyone else also found out about this, stopped what they were doing one by one, and looked at Mo Yanran at the door of the office with a strange expression.

At this time, Mo Yanran seemed to be a completely different person than usual, I saw that her long hair was black and shiny, as if it had just been washed, and she often hung down behind her waist, tied behind her head with a blue rubber band at will, and wore a set of white sportswear, which made her tall, fair-skinned, red cheeks and slender neck because of bathing, which made Tan Tianyou and the men a little stunned, and swallowed their saliva unconsciously

Mo Yanran casually glanced at the people who were in a daze, and asked strangely, "You don't work, what are you watching me do?" ”

"Oh, it's okay, we'll get to work right away." Only then did people wake up, reluctantly glanced at her again, and then bowed their heads and continued to work.

"These people are really weird today." Mo Yanran thought so in her heart, and then pushed the door out of the laboratory.

When Mo Yanran walked out, there was some movement in the laboratory, and everyone was working while talking about Mo Yanran's changes in a low voice. No one knows why she used to dress so casually, but she actually changed and began to dress up.

Of course, Mo Yanran is still quite good-looking when she dresses up, and these men can't wait for her to be happy when she dresses up like this every day.

…………