Showing posts with label nanostructure. Show all posts
Showing posts with label nanostructure. Show all posts

Thursday, October 31, 2024

The polaritons are the tools for nano-size photonics.


"Schematic illustration of the electrical spectroscopy on the polaritonic-based graphene photodetector. Credit: ICFO/ David Alcaraz Iranzo" (ScitechDaily, Tiny Polaritons Unleash a New Era in Nanophotonics)

"Photonics is a branch of optics that involves the application of generation, detection, and manipulation of light in the form of photons through emission, transmission, modulation, signal processing, switching, amplification, and sensing. Photonics is closely related to quantum electronics, where quantum electronics deals with the theoretical part of it while photonics deal with its engineering applications. " (Wikipedia, Photonics) 

Though covering all light's technical applications over the whole spectrum, most photonic applications are in the range of visible and near-infrared light. The term photonics developed as an outgrowth of the first practical semiconductor light emitters invented in the early 1960s and optical fibers developed in the 1970s." (Wikipedia, Photonics) 

The first solution that used photonics was an optical data cable. Those cables are still one of the most secure data transmission systems. It's possible that the system can use outside optical fibers to send so-called empty signals. If somebody changes the form fiber or cuts it the system detects it. Then it can report that anomaly in wavelength to the system supervisors. 


In that system, data travels in an inner optical fiber. That makes outsiders hard to see the data flow.  If somebody wants to eavesdrop on that data. The spy must damage or turn the outside optical fibers. 


And the system notices that. Similar systems can detect things like earthquakes. The movements on the ground stretch and change the route of the light. And that allows observers to see if something or somebody moves the optical cable.

Modern photonics is the tool that makes much more than just transport data.  The high-power computers make it possible to manipulate nano-optical layers. Those layers can transfer photons into wanted directions. The ability to remove reflection from layers is the ultimate tool for stealth technology. And the same thing can make quantum computers more effective. Without reflection, there are not-so-strong artifact effects that disturb the quantum entanglement. 

The ability to create quasiparticles is a great advance in photonics. The quasiparticles can create energy potholes or energy dumps that allow energy and photons to travel in them. The energy potholes in material pull it in together. The quasiparticle can aim photons in the desired direction. And that can make it possible to create the switches and routers for the photonic microchips. 

"In physics, polaritons are bosonic quasiparticles resulting from strong coupling of electromagnetic waves (photon) with an electric or magnetic dipole-carrying excitation (state) of solid or liquid matter (such as a phonon, plasmon, or an exciton).[example needed] Polaritons describe the crossing of the dispersion of light with any interacting resonance." (Wikipedia, polariton) 


https://scitechdaily.com/tiny-polaritons-unleash-a-new-era-in-nanophotonics/


https://en.wikipedia.org/wiki/Photonics


https://en.wikipedia.org/wiki/Polariton

Tuesday, February 14, 2023

The nanostructure makes RDX and TNT so powerful.

 


1) Diagram and chemical formula of TNT. 




2) Diagram and chemical formula of RDX. 


The nanostructure makes hexogen or RDX ( (O2N2CH2)3). and TNT (C6H2(NO2)3CH3) so powerful explosives. The ring-shaped structure that you can see in the middle of the molecule conducts energy that travels from the edge of the molecule to the middle of the ring. There that energy reflects, traveling back through the molecule. And that thing makes those explosives so highly energetic. 

In this text, I write about the RDX. But you can put the TNT in that place. The thing that makes RDX more powerful than TNT is the double bond between oxygen and nitrogen. There is also smaller resistance in energy flow that travels to the middle of RDX. So the pressure that impacts the ring in the middle of the molecule travels freely in that structure. And then it reflects from the middle of the ring. The RDX molecule will break faster. and that means the reflection will not face resistance. 

There are only hydrogen atoms in the TNT ring. And that means it cannot stand for enough long time. That the energy will travel through the ring. That means the reflection will not be symmetrical when the shockwave travels in the middle of that ring. That decreases the TNT's power. 

The RDX or hexogen is the most high-energy explosive in the world. That explosive is composed of hydrogen, nitrogen, and oxygen. Somebody asked me why that explosive is so powerful. 

The answer for that thing is in the nanostructure. There is a nitrogen and oxygen ring in the middle of the molecule. And when the RDX starts to burn the energy travels from the edge of the molecule to the ring. When the reaction starts the chemical double bond between the nitrogen and oxygen starts to break. And then that string moves like a whip. It transfers energy to the ring in the middle of the molecule. 

Another bond touches hydrogen or nitrogen. Then the "Y"-shaped atomic structure transfer energy to the ring in the middle of the molecule. The ring in the middle will transfer energy in the middle of it. 

Then, the reflecting wave starts to travel back from the middle of the molecule. When the temperature decreases to +4 the RDX turns very easily explosive. The reason for that is that the molecule turns smaller if the free energy level rises. There is the possibility that the chemical bond of oxygen touches hydrogen. That thing starts a reaction. 

Nanotechnology can make RDX even more powerful. In some visions, the ring inside the molecule will cut to the wrench-looking structure. That thing will aim energy in one direction. So in that case, energy travels straight through the molecule. 

There is possible to make RDX molecules that form a series of 2D layers. And if those rings are in line they are forming tubes. If researchers want to make this explosive even more powerful they can put the pikes that are conducting energy in those tubes. 

That thing can make RDX even more powerful. The ball-shaped molecule where that molecule ring forms a ball is possible to increase the power of the RDX. 

In that case, the nitrogen and hydrogen atoms form a ball-shaped structure that makes the miniature vacuum bomb in that structure. The ball-shaped RDX molecule can give more power than regular RDX. 


https://en.wikipedia.org/wiki/RDX


https://en.wikipedia.org/wiki/TNT


https://shorttextsofoldscholars.blogspot.com/

Green stars and strange binary stars. And post-stellar planets.

“Artist’s impression of ZTF J0440+2325, a brown dwarf (right) and a red dwarf (left) that orbit each other every 86.65 minutes. The brown dw...