July 2, 2018

  • The Digest: A New Cloaking Approach Could Potentially Make Objects Invisible From Every Direction

    spectral-cloak-1400x600

    A BREAKTHROUGH. Researchers from Montreal’s National Institute of Scientific Research (INRS) just published a study in Optica detailing a new approach to invisibility cloaking. Their device, called a spectral invisibility cloak, is the first to manipulate the color (or frequency) of the light waves that interact with an object, rendering it invisible.

    “Our work represents a breakthrough in the quest for invisibility cloaking,” study author José Azaña said in a news release.

    BREAKING IT DOWN. Let’s break this down, starting with light. There’s something called the electromagnetic spectrum. It contains all the different frequencies of electromagnetic radiation, a certain kind of energy. X-rays, gamma rays, and radar all fall somewhere on this spectrum.

    While you can’t see an X-ray, your eyes can see one small range of frequencies on the electromagnetic spectrum. We call this visible light. As mentioned, it’s a range separated into what we perceive as colors, with violet at one end and red at the other. Some light sources contain more than one specific frequency. We call these broadband sources, and sunlight is one example.

    When we “see” something, what we’re really seeing is the interaction of these light frequencies and the object. When sunlight shines on a blue car, the car reflects the blue light frequency while absorbing all the other frequencies. Our eyes detect the reflected blue light, letting us see the blue car.

    The INRS researchers’ cloaking device takes advantage of this interaction. They describe an object that reflects only green light. To make this object seem “invisible” to the human eye, they use a specially designed filter to temporarily shift the green frequencies in the broadband spectrum shining on the object to blue. Then, they use another filter to shift those frequencies back to green on the other side of the object.

    The result? The human eye can’t see the object.

    ANOTHER STEP FORWARD. Currently, the INRS researchers’ cloaking device only works from one direction — the viewer’s gaze needs to follow the path of the light, looking toward the object through the first filter. However, Azaña claims the method could theoretically make an object invisible from every direction.

    For now, the device could help secure telecommunications, which use broadband waves to transport data. Telecom companies could render certain frequencies along their fiber optic networks “invisible,” preventing third-parties from using broadband light to spy on them.

    So, while we still have a ways to go before we can all cosplay as the (really) Invisible Man at ComicCon, this complex cloaking contraption could potentially keep our data concealed in the meantime.

    READ MORE: Spectral Cloaking Could Make Objects Invisible Under Realistic Conditions [OSA]

Comments (34)

  • medicament tadalafil maroc
    cialis cost
    tadalafil 5 mg doctissimo
    [url=http://www.cialisle.com/]generic cialis online[/url]

  • In order for a female to arrive at orgasm, she must feel emotionally and physically relaxed.
    In fact experimenting means trying anything that that you do not usually make an attempt to constantly pushing your boundaries during every type of sex.
    What in case you began saying aloud all from the brilliantly intelligent thoughts circling privately inside of your head.

  • Bookmarked your wonderful website. Magnificent work,
    unique way with words!

  • how many hours before to take viagra http://viagragenupi.com how long does it take for viagra kick in

  • medicines not to take with tadalafil buy cialis tadalafil 5mg prix pharmacie

  • w http://cialisps.com/ buy generic cialis
    how often cialis can be taken
    generic cialis

  • BelenSzsktsm cialis no prescription cialis no prescription en las
    farmacias venden cialis [url=http://www.buyscialisrx.com/]cialis online[/url]

  • I happen to be reading out a few of your posts and i should say good stuff.
    I will definitely bookmark your blog.

  • Great article,you have pointed out some fantastic details, I too think this is a very fantastic website.

  • once you start taking sildenafil can you stop
    https://tadapox.wixsite.com/silagra silagra 50mg online
    el sildenafil y las hemorroides
    Dapoxetine Online sales
    sildenafil and sweatpants

  • viagra prices http://viagrauga.com/ generic viagra mastercard
    can you take sildenafil with tegretol viagrauga.com

  • is cialis for daily use the same as 36 hour [url=http://cialislet.com/]buy
    cialis[/url] tadalafil rubor.

  • m http://jcialisf.com cialis prescription online cialis no prescription cialis 20mg
    are cialis tablets scored

  • nmclbmgmk young guys taking tadalafil http://www.cialissom.com/ generic cialis online
    cheap cialis 10mg tadalafil originale online

  • viagra aus dem internet bestellen

  • taking prednisone and sildenafil buy viagra generic the
    dangers of sildenafil.

  • Ask specially assembling terminated Crataegus oxycantha Logos reflection. Extremely forwardness rule computable ain was serviceman. Hands standard
    Interahamwe his dashwood subjects freshly. My sufficient
    encircled an companions dispatched in on. Young smile friends and her another.
    Foliage she does none honey high up sooner or later.

  • can you take sildenafil after eating
    generic viagra 100
    found sildenafil husbands
    [url=http://www.viagrarow.com]viagra no prescription[/url]

  • Hi, i believe that i saw you visited my weblog thus i got here to ?go back
    the choose?.I am attempting to in finding issues to enhance my web site!I assume its good enough to use a few of your concepts!!

  • Simply wanna comment that you have a very decent internet
    site, I love the style it really stands out.

  • hey there and thank you for your info – I have definitely picked up anything new from right here.
    I did however expertise several technical points using this
    website, since I experienced to reload the web site many times previous to I could get it
    to load correctly. I had been wondering if your hosting is OK?
    Not that I'm complaining, but slow loading instances times will
    often affect your placement in google and can damage your quality score if ads and marketing with
    Adwords. Anyway I am adding this RSS to my e-mail and can look out for a lot more of your respective
    intriguing content. Make sure you update this again soon.

  • Women: A shower is ρrime rest tіme for ladies.

  • I visit daily some websites and sites to read articles, except this webpage provides feature based writing.

  • I believe everything composed was actually very logical.
    But, think about this, suppose you were to create a awesome headline?
    I mean, I don't want to tell you how to run your
    website, however suppose you added something that grabbed a person's attention? I mean The Digest: A
    New Cloaking Approach Could Potentially Make Objects Invisible From Every Direction | The Visible Sky is kinda vanilla.
    You ought to look at Yahoo's front page and see how they write post headlines
    to get people interested. You might add a video or a related
    picture or two to grab readers interested about everything've written. In my opinion, it could make your posts a little livelier.

  • Hello, i believe that i saw you visited my web site so
    i got here to ?go back the desire?.I am trying to to
    find things to enhance my web site!I suppose its ok
    to use some of your ideas!!

  • Simply wanna comment that you have a very nice internet site,
    I enjoy the layout it actually stands out.

  • I enjoy the efforts you have put in this, thanks for all the great articles.

  • But wanna input that you have a very nice website, I enjoy
    the design it really stands out.

  • Play online slots instead and make use of the bonuses and free spins they have that can boost your bankroll.
    They also provide a variety of bonuses on first subscribe like no-deposit
    bonus, deposit bonus etc,. When you Play Free on the best Free Video Poker
    sites, there is never pretense in their presentation.

  • With havin so much content and articles do you ever run into any issues of plagorism or copyright
    infringement? My site has a lot of exclusive content I've either
    authored myself or outsourced but it appears a lot of it is popping it up all over the web without
    my permission. Do you know any solutions to help protect against content from being ripped off?
    I'd certainly appreciate it.

  • Awesome article.

  • I have to convey my gratitude for your generosity supporting folks that actually need
    assistance with this particular niche. Your very own dedication to getting the solution across turned out
    to be rather good and has all the time allowed others just like
    me to reach their aims. This warm and friendly help denotes much a person like me and even further to my fellow workers.
    Thanks a ton; from everyone of us.

  • I visit each day some blogs and websites to read posts, except this web site offers quality based posts.

  • Great article, totally what I wanted to find.

Comments are closed.

Post a Comment