Optical antennas: sophisticated infrared light manipulation technology (2020/11/04)
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- Опубліковано 2 сер 2024
- Thank you for watching our video and leaving valuable comments, some of which pointed out that the background music didn't work well.
We're currently working on a revised version. Please bear with us and return to our channel soon to see the improvements.
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Have you heard of "metamaterials"? These sophisticated materials have nano-scale patterns on their surfaces that allow us to control light.
We at NIMS have developed a novel gas sensor that incorporates a metamaterial with a special pattern on its surface capable of emitting and absorbing infrared light of a desired wavelength.
How does it work? What can we use it for? Watch this video and find out!
Original Japanese version was published on 2020/11/04 at • 【NIMS WEEK開催！】光アンテナで赤外...
Related video: • Watch! A clear view o...
See www.nims.go.jp/eng/news/press...
for more information - Наука та технологія
Thank you for watching our video and leaving valuable comments, some of which pointed out that the background music didn't work well.
We're currently working on a revised version. Please bear with us and return to our channel soon to see the improvements.
On the contrary, I loved the music and felt it worked very well. Some people just don't have such a fine appreciation of music to understand it. Those who can do physics and music (e.g. Brian May) are double smart!
sick of your global warming PROPAGANDA.. DISLIKE AND DOWNVOTED
@@Andrew-rc3vh this has nothing to do with music, on a science video the audience is not here to hear music, especially if it is a genre that will necessary not suit everyone, it is communication basics.
@@lo2740 It looks like the Japs think differently. I know their neighbours the Chinese like a music backing track for tech videos. It's almost standard on Alibaba.
I liked the music! nice and happy :-)
The music is very annoying and far too loud but good info
Yes, fine for intro but should not be playing throughout the explanation.
Somebody seems to care more about rock guitar than about meta-materials.
I care about BOTH 🔬🎸🤘
Definitely someone from another country
@@whyamiwastingmytimeonthis Chad
Please take the music out
The ones that point that the bachground sic is annoying are 100%right
It is called a surface plasmonic resonator. You can tune to any wavelength you want, assuming that you structure the gold or other metal over the insulator correctly. If you want to get into the extremely weird, you can put the pattern over nonlinear optical materials as the insulator layer. This allows very efficient conversion to difficult to reach bands of light and even into terahertz or microwave regions. For example a direct light to microwave or microwave to light emitter. 🤔 Also the music was totally unnecessary in this video, it made it difficult to hear the scientist discussion of it. 😢
Correct me if I'm wrong, please. That quantum well mentioned, it's the same principle of CCD cameras right? The charge particle will build up underneath them "drive" in a specific way to the outside to be amplified... I saw this explanation in a Asianometry vídeo yesterday and think about this similarities
@@yagobueno2785I don’t know about that, but CMOS replaced CCD for cameras a while back.
@christopherleubner6633 - Since you are evidently familiar with this area, can I ask you to comment further? It looks like these effects *do not* require laser light input, since there was a response from human body heat on one of the sensors. Also, a special emitter was shown having the twin-tuned output when merely heated. But I still have important questions . . .
Is it _always, mostly, or generally_ true that these effects do no have to start out with coherent radiation? Is the emissivity _within the tuned bands_ *higher than unity?* Should I assume that the likely tradeoff is emissivity being much lower than normal blackbody _outside the tuned bands?_
Thank you.
Man I actually really liked the background music, it gave it a much more fresh feel to the video compared to all the other videos.
Most times such videos either have very lulling kind of music or no music at all.
This reminded me of shows like How its Made and Factory Made.
Nantennas have been around for awhile. The rectifier diode at that speed is what we are waiting for.
Metamaterials are so damn cool.
Hideki my man, mad props to you for your excellent science/engineering 🫡
ABSOLUTELY INGENIOUS!! Thank you for the amazing video!!
Cant wait for somebody making an infrared optical camera sensor out of nanoscale antennas
Or a solar cell?
Very cool!
Is there a paper for this? The video suggests, that it converts heat to IR radiation directy?
The music is really distracting.
This rocks.
Super!
Thanks for your video
Please consider removing the background music
It's distracting
Music not needed. The rest of the video was good. Being an amateur radio operator I was thinking "Optical antennas: sophisticated infrared light manipulation technology (2020/11/04)" Was makin antennas out of an emitting wave length VIA a device. Like a light saber makes a blade out of light. Only invisible.
Neat.
4:32 that looks like a cryo dewer. So the metamaterial detector likely requires cryo cooling.
The other sensor they showcased here is called a MCT (mercury cadmium telluride) detector, which is a quantum type detector sensitive to far infrared wavelengths when cryo cooled.
The hottest sensor right now however, seems to be microbolometers, which requires no cryo cooling but has way less sensitivity.
Still, microbolometers come in quite handy in my phone.
Se pueden usar esas técnicas para fabricar una rectena y así poder aprovechar un poco más el espectro de la luz solar para producir paneles más eficientes.
@NIMSJapan - It looks like these effects *do not* require laser light input, since there was a response from human body heat on one of the sensors. Also, a special emitter was shown having the twin-tuned output when merely heated. But I still have questions . . .
Is it _always, mostly, or generally_ true that these effects do no have to start out with coherent radiation? Is the emissivity _within the tuned bands_ *higher than unity?* Should I assume that the likely tradeoff is emissivity being much lower than normal blackbody _outside the tuned bands?_
Could u make and infared solar panel ?
does the Infrared light source work, in absolutely Infrared dark conditions because I am curious about how much is coming from the device and how much is guided reflection. are the rectangles 3.95um by 4.26um? or does the wave come from the channel between the rectangles. the picture at 2:00 looks like the east west channel size could be shorter then north south channel but the picture at 2:45 the look about the same size. at 3:45 does connector of the squares match the frequency shape dimensions so it resonates with that frequency. why does the square connectors not alternate from square to square to better match the wave form or is it impossible to etch in such a way.
They are technically antennas that cause an effect called surface plasmonic resonance so they are likely 1/4 or 1/2 wave. A quarter wave would allow a phased array to be formed at the desired frequency. Also changing the shape would change the polarization, for example if you made them as circles you would get left or right rotating polarized light instead of linear polarized light.
Does the zig zag help attenuate other wavelengtgs because the light excited the wells in accordance with the phase? So - voltage in the wave subtracts, + voltage adds?
Hello I have different Antennas that can do multiple things at once and can Sense very light frequencies and controls electronic devices with out Bluetooth or connection of any type.🎉
If you replace rock music with Beethoven orchestra, the device will be able to detect alien cosmic gravity wave radiation
Is this really a drum track video?
How can I buy these?
Don't Antennas need oscillating signal input to output anything at all? Same goes for receiving antenna, the output will be AC with frequency will into terahertz, how did he rectify it?
The radiators are more accurately called resonators, they don't need specific excitement, they just "ring" at the desired wavelength.
The receiver(s) are quantum wells. Again the resonance from the physical dimensions make them more sensitive to the desired wavelength. Once the resonance is strong enough, electrons are pushed out of the well. Since it's only electrons that are used out, the signal is inherently DC.
At least thats what I glean between the 🎸🎶
I hope this is cheap beacuse i want a few 🥰🥰🥰
These could be made surprisingly cheaply. While gold was used it was not much, but it is also possible to use many different metals for the antenna elements. Yup they are literally tiny antennas tuned for light.
1:21 interesting that your camera photosensor cant see it either
Typically itll show up as violet or purplish light
Must have good ir filter in it
Can possibly use it to finally make a true blue, purple, and ultraviolet led.... Type a b and c
music too loud. we want to focuson that is being said.
I like your video some of these people complain insistently 🍿you need to make one with Beethoven ,one with disco,, one with hip-hop and the other one with some boring elevator music. It is amazing that people complain about anything they can they can’t really see how funny it is to see those, great scientist whether they be Japanese or whatever making breakthroughs and discoveries and complain about the music, they’re listening to hopefully that Japanese man was playing air guitar as he was listening to rock music reaching towards the stars 😜👏🏻
Was this made in indonesi trying to emulate 2003 daytime discovery channel
I thought it was antennae.
Do something about that noise videos unwatchable
Dump the music
I think you had better decide whether you are doing a science video, or playing a rock concert :-)
flat mimo directional radar dish mems array acting as parabolic lens/generator/sensor, with bottleneck making measurements and outputs directions and mems to change the pixel direction
Another potentially interesting topic destroyed by your annoying music you thought was soooo cool . Cya
Neat presentation. However, the background music plays like a parody 90s after school special. It's terrible.
Or see you inside your bedroom from space..
that material's gonna get cancelled 😅
Please re-do this video without the annoying music.
Proper video making skills are required for making content more attractive and desirable to watch in the future. For example, turn the volume of the background music down!
Two minutes into this video and I'm intrigued by the technology, but the awful music has forced me to pause and write this comment before closing my tab without watching the rest. Please, please, please consider that not everyone has the same taste in music.
Meta-L material
All this because a lightbulb the size of a grain of rice doesn't operate at full efficiency?
skibidi meta toilet
gen alphas 🙄
The music is very annoying and far too loud but good info