Greetings pol,Ever wonder what Trump actually meant when he said we had Jet aircraft that could literally disappear? Not just from radar, but from optical light too. The media called him crazy, here's what he meant.Now let's consider this, do you know what a Luneburg lens is? It can be used in devices that under certain conditions act as phase conjugate time reversal mirrors. Especially if a Bose Einstein Condensate is used as a buffer. Anyway, a configuration such as this can probably me used as a type of "Active Cloak" or "Broadband Cloak" for an aircraft (as Luneburg Lens's are already installed upon most US stealth aircraft for supposedly different purposes). Probably functioning in a way similar to how acoustic time reversal mirrors cancel unwanted noise.A properly made luneburg lens antenna would be of a layered metamaterial, with a gradient refractive index from the outside surface, to the innermost point. By it's nature, it's already designed to reflect EM energy back along the path that was taken to reach the antenna/lens...combined with a BEC acting as a buffer material and with a negative refractive index, we can create what is a perfect time-reversal lens.Officially, these types of devices are only put onto stealth planes to make them more observable to radar during training exercises. However they can also make their radar profile much larger than the plane itself (obfuscating radar)...but what if it was used to either bend light around the craft? Or create destructive interference around the craft in order to eliminate any radar return?
>>64699644Some supporting research.https://en.wikipedia.org/wiki/Luneburg_lenshttps://arxiv.org/pdf/cond-mat/0607418https://journals.aps.org/pra/abstract/10.1103/PhysRevA.59.1509https://arxiv.org/abs/1208.3174https://www.nature.com/articles/s42005-020-0384-5.pdfhttps://arxiv.org/pdf/1812.06179https://en.wikipedia.org/wiki/Geometrodynamics#:~:text=In%20theoretical%20physics%2C%20geometrodynamics%20is,continues%20in%20the%2021st%20century.https://iopscience.iop.org/article/10.1088/1742-6596/2987/1/012001/pdf
>>64699644
>>64699649Now some of you more perceptive anons may realize that much of this research has to do with the "cloaking" affect taking place within or behind one of these material spheres.That said, some of you may remember this conversation here:https://m.fark.com/comments/1386759/11882728#c11882728https://m.fark.com/comments/4371964/50903132/Scientists-think-warp-driven-starships-may-be-possible-one-day-at-least-until-some-acting-ensign-pulls-o#c50903132Using a Bose Einstein Condensate as a "buffer" material, light can be slowed down OR sped up past c (however in the case where light speed is increased past c, there is debate on what actually constitutes a 'signal' in that case).Anyway, the point is (as mentioned in the FARK links) you basically have what can be a PERFECT Phase Conjugate Time Reversal Mirror.Because with a negative refractive index, you can calculate the trajectory of the incoming light, and preform phase conjugation BEFORE that light even reaches the plane (requires BEC for time lens).The idea is that you can then project the necessary waveforms that can create an area of destructive interference around the craft.
>>64699661thanks for taking the time anon
What if we used this device to bend my dick around OP’s mom’s big fat ass
>>64699691Yes, it could also be used for that.
bump
>>64699644so the idea is like active noise cancellation except with light?
>>64699764yes anon, similar to that.Most official research into active cloaking has to do with metamaterial research. Basically, enclosing an aircraft within a physical material (or coating it with said material). But this idea is a little different. Because A LOT of this metamaterial research is being applied to luneburg lens type antenna. It's officially used as a radar reflector...however there are reports that the B2 bombers that supposedly attacked Iran were equipped with these lenses during the bombing run. https://arxiv.org/abs/2512.03985#:~:text=3%20Dec%202025%5D-,Negative%20Index%20Makes%20a%20Perfect%20Time%2DDomain%20Lens%2C%20Generating%20Slow,cycle%20modulation%20or%20impedance%20matching.
Neat thread op
>>64699839thanks bro.Trying to attract others. I'm really sick of the sub 80 IQ bullshit on here.Anons know about sci-hub right? You don't have to pay for research papers.
>>64699839Hey let me ask if you're still around. Does /k archive on 4pleabs? I looked but didn't see it there. Does it archive somewhere else automatically?
>>64699644what would be the point of making a plane invisible to the eye?isn't the whole point of stealth to just not get locked onto and subsequently shot down with radar?
>>64699860It's invisible to BOTH radar and optical light is the idea.Not just one or the other. Go to Google Scholar and search "active cloak"...there is a lot of interest and money put to this subject.
Blackest pol nigger retardation thread
>>64699860but again, most of the publicly available research deals with metamaterials that either layer onto the craft you want to hide, spray on, or some kind of material substance that the craft has to hide behind or within. My idea is to use a metamaterial luneburg lens (Luneburg lens antenna appear to be what will replace phased array antennas) combined with a Bose Einstein Condensate (maybe contained in the middle of the lens...or the lens itself might be a semiconductor BEC) could create a perfect time reversal lens/mirror with a negative refractive index.So again, the general idea is to create a field of destructive interference around the craft (flip a switch, now in cloak mode) as opposed to pumping energy into the metamaterial skin of the aircraft. Honestly both methods are probably viable. I just never heard of this method in particular and wanted to pitch the idea to the geniuses of /k.Also, I really really think it's a real thing no matter what anyone says.
>>64699873ya ya heard that before.You must be a pol regular.
Put it this way, officially these things are already used to obfuscate enemy radar. For example, during recent mock aerobatic combat (training exercises) that occurred overseas (I believe it was the Dubai airshow) using the F-35...many anons commented on the fact that now adversary nations (by simply scanning the area with their long range or medium range radar) can observe the flight characteristics of the F-35.But as people pointed out, those planes were equipped with luneburg lens antenna. Which make the profile of the f-35 larger than it is in reality...totally obfuscating it's actual flight characteristics to any snooping sensors or radars. That said, maybe these luneburg lenses can obfuscate, or hide from radar in other ways?Here's a neat article that doesn't deal with cloaking, but talks about this tech used in radar.https://en.eeworld.com.cn/mp/xzclasscom/a84484.jspx
some more research into the general concept. https://arxiv.org/pdf/0906.4491
>>64699644stupid nigger, a luneburg lens increases your radar return. There's no physical mechanism by which it could make you less stealthy, it's defines by reflecting the maximum amount of radar waves from any angle >destructive interferenceonly works if the two waves are traveling in the same direction or are standing waves. You can't destroy photons flying at you, or like... destroy photons in general. EVEN IF such a thing was possible, you wouldn't be cloaking your fighter jet, at best it would look pitch black... but you can get the same effect by just fucking painting it black>Greetings pol,yeah
>>64700021 (me)by which it can make you more stealthy*
>>64700021>poloops>you'd be left with a big black spotTrue, but I think leveraging things like superluminal polaritons within a BEC negative refractive index metamaterial, maybe you can selectively cancel out certain light patterns and leave others intact. >Can't destroy photonsRight, I realize this, but the intensity profile of light can be re-distributed around the craft.
>>64700021>>64700056Here man, this is the effect I'm referring to, and it coincides with what you are saying.https://www.spiedigitallibrary.org/conference-proceedings-of-spie/8832/1/A-mechanism-of-wave-interaction-during-interference/10.1117/12.2024836.short
>>64700021>>64700081So you're right when you say "you can't destroy photons".I understand that...and although I didn't get into it earlier, the idea isn't to destroy the incoming or ambient light. The idea is to shift the intensity profile of the light.
>>64700081>>64700141Interesting.
>>64699881i don't think it is reali have friends and family who are military aircraft mechanics and engineersi think it would take an unreasonably large coverup to conceal 100% stealth from the people who design and fix the planesi know you believe this is real but in my personal experience i do not
>>64700169>can't conceal from airplane mechanics.KekMy point is it would be the luneburg lens module that is creating the cloaking field...and mechanics for jet aircraft certainly aren't taking those apart...just like they don't take apart the or analyze the electronic warfare pods.You're familiar with electronic warfare pods right? They are also mounted onto planes like the EA-18G Growler. In fact, if the secret to cloaking tech is within the modular pods, it would be the perfect way to hide it in plain sight. Mechanics would never catch on...they just read the Wikipedia page and that would be enough for them.Nothing you said has changed the scope of the conversation anon. I hope that post was worth your time.
bot thread
>>64700192no it's fucking not you god damn retard. I'm OP. Does this sound like a fucking bot to you?
>>64699644>>64700196I will admit that I got the greeting wrong. I usually post in /pol and overlooked that.
>>64699644You forgot your snacks anon
>>64700208Oh I'm sorry, I guess I should have made another retard thread regarding some fucking silencer or something. Maybe some shitty artillery cannon that no one gives a fuck about.
shameless bump
>>64699644OP might be onto somethinghttps://www.ndtv.com/india-news/explained-how-armys-new-luneberg-lens-for-drones-can-deceive-enemy-air-defence-4641343
This is in regards to VR, but the concept might applyhttps://www.youtube.com/watch?v=ivHG4AOkhYA
the chinks have probably copied it already
>>64700324From what I understand, Russia had it first. USA had it second.I almost remember Putin (or someone in the Russian government) sharing a video of a Russian bomber landing on an airstrip. The thing was you couldn't see the plane at all, only it's landing light. And this was in the middle of the day.
>>64700336>I almost remember Putin (or someone in the Russian government) sharing a video of a Russian bomber landing on an airstrip. The thing was you couldn't see the plane at all, only it's landing light. And this was in the middle of the day.do you haz video?
>>64700343No...sorry anon. I believe it was posted to Twitter or Gab years ago.It didn't say "cloaked plane" but the people who re posted it suggested that
>>64700343Well, let me look for it for the hell of it.
>>64699644>Jet aircraft that could literally disappearB2 flight range and refueling stops in the Fordow strike lead up suggest a far greater than stated endurance-- the stealth probably isn't just the coatings, but a plasma sheath, kind of like that a hypersonic develops in the terminal actually-hypersonic phase. In theory, such a plasma sheath immensely reduces drag as a bonus.
>>64700389>Plasma actuators used for microwave stealth (not optical) and increased aerodynamic ability...ionizing incoming air reduces drag Thanks for sharing. I'm familiar with what you are referring to. I believe that would be decades old tech though. And passive radar would still detect the RF thrown off by the plasma sheath.What I'm referring to is a broadband active cloak that would bend the intensity profile of like around the craft by simulating a non-eucludian geometry around the airframe...using interfering plane waves.This can already be achieved computationally.
>>64699853desuarchive.org homie
>>64700404Needs to be cold plasma
>>64700404And when I say "achieved computationally" I mean this:>>64700320If we can simulate it without a VR environment, much of the same math would apply IRL....and using a perfect phase time reversal lens (like a negative index metamaterial lense or BEC lens) then you could create this perfectly simulated non-euclidian geometry of interfering waves of many frequencies (broadband) around the craft.
>>64700417*Within a VR environment
>>64700414>Cold plasma You mean so it doesn't throw off residual RF and microwaves? Honestly I'm no expert, just curious. I didn't realize a low temp plasma also didn't throw off RF
>>64700389>>64700404>>64700417I can't believe this stupid nigger doesn't know about mid-air refueling. This entire thread is just buzzwords
I have little to add to this thread beyond the fact that BECs were the main plot mcguffin in a sci-fi netflix slop movie released a few years ago. Funnily enough the main use is to make things invisible. Also one of the co-inventors of the supercooling method became Secretary of Energy under Obama.But I'm sure it's all just one big coincidence and we're all schizos.
>>64700475The research into it is real and the Fark knowers were most likely real, but the retarded faggot OP mixed up his buzzwords. Cesium BEC is used for laser pulse compression, phase conjugating optics help mitigate atmospheric distortion. Hard to say if the dugway zapper stuff was real or not, I lean towards Bedlam trolling us with that one
>>64700439It's been a long time since Ive researched anything physics related. I don't know much about the concept. But a regular plasma shield, if possible, would create enormous amounts of heat that would make it an option that's not viable with today's material. Iirc, "cold plasma" is just theoretical given current technology. But it would be the viable option as far this subject is concerned.I would expect both to give off enormous amounts of emi and rfi. Good example is an extremely close lightning strike (inb4 plane comments). Due to superheating and ionizing the air during a lightning strike, plasma is created. This amount of energy creates short lived interference with will result in your TV or radio signal being interfered with. Possibly even the electrical grid giving you a quick "reset" for lack of a better term.
>>64700494>Pulse compression >Adaptive opticsI get it. I know that the original concept was applied to a gamma ray laser type device as far as the FARK threads went.I just wanted to see what others thought about applying the idea to a different set of circumstances that I don't think have been discussed.The type of lensing system I'm referring to in OP is fairly well connected to both conventional metamaterial cloaking (active material creating something like a non-euclidian space so light pases around the craft like water around a stone) and things like phase conjugation and time reversal lenses.I thought combining the concept with the ideas initially presented by the FARK threads would be interesting.Just seeing what others think
Oh look a new schizo. Honestly this one seems to be trying a bit too hard.
>>64700902>NewThis retard has been here for years
>itt: schizo with high school level physics knowledge attempts to discuss phd level topics
