Showing posts with label light. Show all posts
Showing posts with label light. Show all posts

Sunday, November 17, 2024

Photonic time crystals and lasers can be the tools for new types of photonic computers and next-generation photonic technology.


 Photonic time crystals and lasers can be the tools for new types of photonic computers and next-generation photonic technology.


"“This work could lead to the first experimental realization of photonic time crystals, propelling them into practical applications and potentially transforming industries,” says Professor Viktar Asadchy from Aalto University, Finland. Credit: Xuchen Wang / Aalto University" (ScitechDaily, Scientists Create Photonic Time Crystals That Amplify Light Exponentially)

Time crystals are materials that oscillate at a certain frequency. That oscillation pumps energy to light. Another thing. This time-based oscillation can make. Is to make photons jump between the walls of that time crystals. The oscillation sends wave movement into that jumping light or photons. Another way to increase the power of that jumping light is to make outcoming radiation increase its power. 

"Scientists created photonic time crystals, unique materials that amplify light and could enhance lasers, sensors, and communication technologies." (ScitechDaily, Scientists Create Photonic Time Crystals That Amplify Light Exponentially)

"These crystals exhibit time-based oscillations, allowing for the exponential amplification of light, with potential applications ranging from advanced sensing to communication." (ScitechDaily, Scientists Create Photonic Time Crystals That Amplify Light Exponentially)

"Scientists have successfully designed realistic photonic time crystals—exotic materials capable of exponentially amplifying light. This breakthrough, an international team of researchers, opens up transformative possibilities in fields like communication, imaging, and sensing, laying the groundwork for faster, more compact lasers, sensors, and other optical technologies." (ScitechDaily, Scientists Create Photonic Time Crystals That Amplify Light Exponentially)

“This work could lead to the first experimental realization of photonic time crystals, propelling them into practical applications and potentially transforming industries,” says Assistant Professor Viktar Asadchy from Aalto University, Finland. “From high-efficiency light amplifiers and advanced sensors to innovative laser technologies, this research challenges the boundaries of how we can control the light-matter interaction.”(ScitechDaily, Scientists Create Photonic Time Crystals That Amplify Light Exponentially)

The new photonic system can increase the power of light exponentially. Laser rays can cut the route of other laser rays and form shadows. 

Photonic time crystals and lasers can be the tools for new types of photonic computers and next-generation photonic technology. The laser rays can close the route of light. That ability makes it possible to create the photonic switches. The idea is that the crossing laser ray can cut the path of another laser ray.  

And that allows the system to cut the signal. That kind of system can be a revolutionary advance for photonic microchips. Photonic microchips are tools that can minimize errors in quantum computers' qubits. The reason for that is that. The electromagnetic fields in those microchips are weaker. Than in regular silicone-based processors.

The high-power light can also ionize the atoms. The ion system can be used in medical and other systems like plasma stealth. In medical technology, the ion system can send ions to the targeted cells. The idea is that ions can tunnel themselves through the materials. The nanomachine can put tiny magnets to targeted cells and their positive pole can pull ions to those cells. Same way tiny magnets can pull ions or plasma to the targeted aircraft. 




"A black line across a region of blue illumination is the shadow cast by a green laser beam. "(R. A. Abrahao, H. P. N. Morin, J. T. R. Pagé, A. Safari, R. W. Boyd, J. S. Lundeen) (ScienceAlert, Scientists Discover Lasers Can Block Light And Cast a Shadow)


The same effect can protect the spacecraft and aircraft against laser rays. 


Researchers noticed that photonic time crystals could increase the light power exponentially. They can operate in sensing, imaging, and communication. The ability to amplify light exponentially makes it possible to create high-power laser systems. And the same systems can turn laser rays out from the layer. 

If we think about things like "flat lasers" or layers that can form laser rays from any point the system wants that system can make it possible to turn laser rays out from the target. The idea is that the system creates counter radiation with the same wavelength as incoming laser rays. 

When the incoming laser ray is weaker than the defending lasers that system turns the laser ray out of course. This system can use things like iron powder that it shoots to the route of incoming laser rays. That dust sucks the power of the laser beam and then the counter laser system can turn it away. When an attack is over the magnet can pull that dust out from the orbital. The same system can also destroy incoming missiles. 

That kind of system will not form the light from emptiness. The time crystal can increase the power of light by pumping energy into trapped light. Or the system can use an outside wave that transfers energy into those jumping photons. 

That system collects light and then focuses it. The idea is this. The time crystals form the space or "chamber" where light or photons jump from the chamber's walls. When light jumps from the edge of the time crystal. Outcoming light waves increase those jumping light waves' energy. That effect can raise the light's energy level to very high levels. When we think about things like laser rays those systems can turn even laser rays away. 


The high-power light can be used for ionizing air. 


The high-power light can also ionize the gasses like air. That means the high-power photonic systems can be used in levitational systems that create ion cushions below the craft. Then the craft can levitate over the ground by pushing those ions. The system also allows developers to create very interesting aircraft solutions. 

The idea is that the aircraft ionizes gas at the front of its wings. Then magnetic system pulls those ions backward. That thing allows the creation of very highly advanced vertical take-off and landing, VTOL systems. Those systems make it possible to make airfields and airbases in the middle of the cities, and those aircraft will not disturb people. 

That thing can also be the tool for the plasma stealth systems. In those systems, there is a channel in the aircraft body and wings. The air will be ionized in those channels. Then the aircraft that flies below things like strategic bombers can pull the ion layer between them and ground radars. And, if the system can load a negative electric load to the target. That system can make it possible to pull those ions against targeted systems. 

https://www.sciencealert.com/scientists-discover-lasers-can-block-light-and-cast-a-shadow

https://scitechdaily.com/scientists-create-photonic-time-crystals-that-amplify-light-exponentially/

Wednesday, December 22, 2021

The new double-stars can answer why ELM (Extremely Low-Mass White Dwarfs) seems to be older than the universe?

   

The new double-stars can answer why ELM (Extremely Low-Mass White Dwarfs) seems to be older than the universe?



How do some stars seem more distant than they are? The answer could be. That things like the gravitational effects of black holes and other objects are causing the situation. That light or photons would not travel all the time at the same speed. In this case, where backward coming gravitational effect repeats billions of times. During hundreds of billions of light-years that can cause measurement errors. 

The ELM (Extremely Low-Mass White Dwarfs) dwarfs cause a headache for physicists and astronomers. Because forming of those stars should require that universe should be elder. The ELM-dwarfs are causing the formation of the so-called "infinity theory" that all matter in the universe didn't take part in the Big Bang. 

In that theory, material existed before the Big Bang. But was it dark matter or visible material is not the answer. The thing is that ELM-stars. And some other stars that seem to be older than the universe are causing many theories. One of the reasons why some stars might look being older than they are. Is that the distance to those stars is estimated wrong. 

When physicists calculate the distance to the objects that are far away they maybe forget the effect of the gravitation. Gravitation affects the trajectory of photons. And also if the gravitation comes from backward that thing slows the photons. 

Maybe that thing has no meaning in the regular measurements.  But if the distance to the object is hundreds of billions of light-years. Even the weakest effects like planetary gravitational fields can cause errors in measurements if those errors repeat hundreds of millions of times and the distance to object is billions of light-years that thing affects measurements because light travels to Earth slower than it should.


The new type of double star also gives answers to the question. Why do ELM stars seem to be older than the universe?


When the material is traveling from the normal part of the binary star to the more massive object. It would also start to heat. During that process that material is sending radiation and there is also happens nuclear fusion. So the transfer of energy between stars is not one-way. Nuclear fusions happen also when material drops to the surface of white dwarfs. 

So the black holes are not only objects that send the high-energetic radiation. When the material is dropping to the surface of the white dwarf it turns thicker. Sooner or later the pressure and heat cause the explosion or nuclear reaction that sends the infrared radiation to the bigger object. 

That process turns the normal part of a binary star hotter than it should. And it can act differently than lone stars while it goes out from the main series. The smaller but heavier object is pulling material away from the star. And that decreases its mass. This kind of thing can cause. That massive star will lose so much mass that it turns to ELM. 



http://jjherm.es/research/elmwds.html


https://phys.org/news/2021-12-astronomers-binary-star.html


https://www.space.com/how-can-a-star-be-older-than-the-universe.html


https://en.wikipedia.org/wiki/Hertzsprung%E2%80%93Russell_diagram


Image: https://phys.org/news/2021-12-astronomers-binary-star.html


https://thoughtsaboutsuperpositions.blogspot.com/



Could fast-spinning aerial vehicles be behind some UAP cases?

“The Phantom Twist drone’s unique rotation renders it almost invisible when in flight (Image Credit: Northwestern University).” (The Brief) ...