All About Invisibility Cloak MANUALLY SCIENTIFICALLY Researchers Alinsonorin

All About: Invisibility Cloak MANUALLY SCIENTIFICALLY

Researchers: Alinsonorin, Aldwin Jake Avelino, Nichole Jonh Tabar, Charmaine Marie Torres, Cates

Researchers: Trazo, Arman Ann Unabia, Sheila Mae Villasencio, Vina

Invisibility Cloak Made possible

Invisibility Cloak Ways to create -manual way -scientific way Discovery -recent -scientist’s insights Sources

Way to create Invisibility Cloak Manual Way (just to mean literally “invisible”)

Manual Way Just to mean literally “invisible”

Manual Way A digital video camera captures the scene behind the person wearing the cloak. The computer processes the captured image or video so it will look realistic when it is projected.

Raincoat

Manual Way The projector receives the enhanced image from the computer and shines it through the opening onto the combiner. The silvered half of the mirror, bounces the projected image toward the person wearing the cloak.

Manual Way The cloak acts like a movie screen, reflecting light directly back to the source. Light rays bouncing off the cloak pass through the transparent part of the mirror and fall on the user's eyes.

Manual Way The person wearing the cloak appears invisible because the background scene is being displayed onto the retro-reflective material. It is connected with the idea of OPTICAL COMOUFLAGE.

Optical Comouflage It means to blend with the surroundings. It is the method which allows an organism or object to remain indiscernible from the surrounding environment. It would only provide invisibility in the visible portion of the spectrum.

Way to create Invisibility Cloak Scientific way (deflecting microwaves)

Scientific Way Deflecting microwaves

Scientific way By the use of metamaterials Cloak made up of individual pieces of fiber glass arranged in parallel rows. These hollow fibers are motels of photons –light checks in, but it never checks out

Scientific Way The arrangement of it enables the cloak to deflect or bend the light making it appear as nothing. This is all about manipulating light. This is known as transformation optics.

Transformation Optics A phenomenon that compels some wavelengths of light to flow around an objects like water around a stone.

Metamaterials to develop possible future invisibility

Metamaterials It can deflect microwaves around a threedimensional object It contains bits of metal or other substances Embedded in precise patterns It can make the light bend in an opposite direction from normal paths

Metamaterials A manmade composites engineered on a nano scale with properties entirely different to anything found in nature. Artificially engineered structures with optical properties that bend light in unnatural ways

Discovery Recent studies

Recent Discovery As of year 2006, the cloak is now made of more than 10, 000 individual pieces of fiberglass. This new device can cloak much wider spectrum of waves and will scale far more easily to infrared and visible light.

Recent Discovery For now the vanishing act takes place on a nanoscale, measured in billionths of a meter. Scientists have created a paper-thin material that absorbs 99. 995 percent of the light that hits it.

Recent Discovery The invisibility cloak was minute, measuring 100 microns by 30 microns -one micron being one-thousandth of a millimeter -- and the bump it hid was 10 times smaller.

Discovery Scientist’s insights

Scientist’s Insights �“Cloaking is just the tip of the iceberg, with transformation optics you can do many other tricks. ” -Vladimir Shalaev(professor of electrical and computer engineering at Purdue University and an expert in the fledging field)

Scientist’s Insights “There a lot of materials that are very absorbing of light so that once the light gets in, very little is reflected. That is not the big issue. The big issue is persuading the light to go in the first place. ” -John Pendry(Physics Professor at Imperial College London)

Sir John Pendry One of the scientist concentrating on making an invisibility cloak

Scientist’s Insights "What you want to do is to surround yourself with a transparent material that is not only transparent but bends the light around you. “ -Doctor Ulf Leonhardt(Physicist at Scotland's St. Andrews University)

Scientist’s Insights “It would be possible to make invisibility cloak on a large scale but technically, it's totally impossible with the knowledge we have now. " -Nicholas Stenger(one of the scientists from Karlsruhe Institute of Technology in Germany )

Scientist’s Insights "The cloak made of metamaterial reduces both an object's reflection and its shadow, either of which would enable its detection. “ -David R. Smith(Augustine Scholar and professor of electrical and computer engineering at Duke)

David R. Smith One of the scientist concentrating on making an invisibility cloak

Applications (optical comouflage) AUGMENTED STEREOSCOPIC VISION IN SURGERY COCKPIT FLOORS TRANSPARENT REAR HATCH STEALTH TECHNOLOGY

Latest Invention (optical comouflage)

Conclusion (Optical comouflage) A lot of interesting thing have been done and already we have seen that anyone can be almost invisible with this technology. Research work is going on and soon we will have even more astonishing results.

Sources http: //news. discovery. com/tech/invisibilitycloak-3 d. html http: //science. howstuffworks. com/invisibilit y-cloak. htm http: //www. washingtonpost. com/wpdyn/content/article/2008/02/19/AR 2008021 902617. html

Sources http: //www. sciencedaily. com/releases/200 9/05/090501154143. htm http: //www. imperial. ac. uk/centenary/flash/ti meline/images/people/small/pendry. jpg