Holograms arenot an esoteric topic for ardent sci-fi fans. Movies like Avengers, Avatar,Iron Man and television shows like Star Wars and Star Trek have garnered alarge viewership base owing to their fascinating tryst with otherworldlytechnological advancements. The idea of a 3D hologram technology was first introducedin the movie ‘Star Wars’ in one of the most popular vintage sci-fi scenes wherethe robot R2-D2 projected a 3-D image of Princess Leia pleading for help fromObi-Wan Kenobi. Tony Stark’s lab, equipped with all the cutting edgetechnological contraptions is an absolute wonderland of novel ideas to developsome fascinating technological tools which have the potential to widen thescope of advancements in all fields of life. As reported in Nature, someengineers have developed a technique to perform a very basic 3-D hologramprojection. Although still far from the flawless sci-fi versions, thisfundamental discovery will definitely lead to the promotion of some centralprospects in the areas of artificial intelligence (AI), surgical techniques andmarketing.
Researchadvancements in holographic technology:Cinematicimagination makes such advanced technology look mundane. However, in the realworld, developing such intricate and superlative hologram technology orvolumetric displays has never been a cake-walk. After a great deal of researchand experimentation accompanied by a string of failures as well as moderatelysuccessful attempts, a very primitive method has been developed. The first systemof ‘touchable holograms’ was successfully created by a team at TokyoUniversity. Meanwhile, another major breakthrough has been the development of adevice that can transmit 3-dimensional images in close to real time. Thisdiscovery may open up the interesting arena of telepresence technology. Methods ofhologram creation:The fastest 3Dmotion hologram has been unveiled by a group of researchers from the Universityof Arizona.
The procedure operating behind this 3D motion hologram is all themore remarkable. 16 cameras have been used to create a 45-degree 3-D image. Eachcamera takes a different snapshot (360 degrees) and more the cameras, greaterthe resolution of the image created. To tackle the issues related to therefresh rates of the image, a special type of photo-refractive material isapplied on the screen which reacts chemically with the lasers used to createthe holographic images. The phenomenon of photophoresis is also being appliedto develop more nuanced 3D projections. In this, an intense beam of light isused to direct and manipulate small, airborne particles. A group of researchersat Brigham Young University, using an optically controlled barely visibleviolet laser, trapped a cellulose particle and moved it rapidly through space. Colouredlasers were then used to illuminate the swiftly moving particle.
Patterns werethen traced out in the air with the assistance of this particle in motion. Applicationsand relevance of 3D technologyHologramdisplays are one of the best ways to design digital content to suit human-compatibility.The revolutionary concept of holographic telepresence will prove to be of primeimportance in marketing campaigns. Holograms will also have a profound effect onthe qualitative improvement of training,design, and visualization in enterprises. The ability to display spatial relationships with much precision willprovide substantial assistance. 3D visualizations would be of great help to thephysicians during complex surgical procedures where accuracy is of majorimportance. High-resolution MRI image of the data can be easily obtainedthrough this technology thus, bringing a positive transformation in the fieldof medicine.
Moreover, theexact impact of holographic technology on our view of the universe, nature, andhumankind still remains to be discovered. Will it equip us to explore theunmapped perceptions of science and universe? Will it enable us to develop a clearerunderstanding of the holographic nature? Indeed, a pattern can be safelypredicted only after the major breakthrough discoveries become a part of thepractical experimentation in real-life situations.