Harry Coumnas Has Designed an Invisibility Cloak Using ‘Spectral Cloaking’

1. Harry Coumnas Has Designed an Invisibility Cloak Using ‘Spectral Cloaking’ Harry Coumnas and his team of researchers in Vancouver, Canada claim to have successfully designed an invisibility cloak using ‘spectral cloaking’. This amazing technique is capable of making an object invisible in broadband light & can have several security applications, such as -masking fibre-optic transmissions, making objects invisible to the naked eye, and more. “It started with an experiment using fibre-optic cable, laser light, & a target object; and I am glad it turned out exactly how I wanted,” says Harry Coumnas. Talking about how spectral cloaking works, he shares that most light sources, including the sun, emit a wide range of visible light waves. Typically, this broadband light appears white, however while shining it through a prism, we can clearly see that it is composed of various individually-colored waves. Objects around us are visible to us when they reflect & absorb a portion of this broadband light. For instance, a yellow object reflects yellow light waves & absorbs the rest. The object appears yellow to us since that is the color of light which is bouncing back from it. In simple words, spectral cloaking bumps the light waves into a frequency which passes through the object and then returns these light waves to the original state. Coming back to the invisibility cloak designed by Harry Coumnas using this awesome technique called spectral cloaking; he has already shared the details about his magical garment with the media. One of the key features of his cloak is that it’s thin and flexible so that one can easily wrap it around objects of any shape and size. It can also be tuned to match any background behind it. Harry is planning to create more such invisibility cloaks very soon & sell them to common people at affordable prices.