Meta-Hologram As Seen In Black Panther Allows You To Communicate With People From Different Locations

Don Wood – MessageToEagle.com – As seen in the movie, Black Panther, people from Wakanda Kingdom communicate to each other through a hologram and, this specific movie scene seems to become reality soon.

A new sc-fi-like meta hologram will allow us to exchange different information with people from different locations.

Hologram projector technology in the movie Black Panther. Credit: imdb

Science fiction is quickly becoming reality and we already have holograms all around us. As examples we can mention, a hologram sticker to prevent from counterfeiting money, Augmented Reality navigation projected in the front mirror of a car to guide directions, and Virtual Reality game that allows a user to play in a virtual world with a feeling of live are just a few examples to mention.

Recently, thinner and lighter meta-hologram operating in forward and backward directions has been developed.

Now researchers from Pohang University of Science & Technology have developed a multifunctional meta-hologram from a monolayer meta-holographic optical device that can create different hologram images depending on a direction of light incident on the device.

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Televisions and beam projectors can only transmit intensity of lights but holographic techniques can save light intensity and its phase information to play movies in three-dimensional spaces. At this time, if metamaterials are used, a user can change nano structures, size, and shapes as desired and can control light intensity and phase at the same time.

Meta-hologram has pixel sizes as small as 300 to 400 nanometers but can display very high resolution of holographic images with a larger field of view compared to existing hologram projector such as spatial light modulator.

However, the conventional meta-holograms can display images when incident light is in one direction and cannot when light is in the other direction.

To solve such a problem, the research team used two different types of metasurfaces.1) One metasurface was designed to have phase information when incident light was in the forward direction and the other one to operate when light was in backward direction. As a result, they confirmed that these could display different images in real-time depending on the directions of light.

This newly made meta-hologram demonstrated diffraction efficiency higher than 60% (over 70% in simulation) and high-quality and clear images were observed.

The meta-hologram operating in both directions, forward and backward, is expected to set a new hologram platform that can transmit various information to multiple users from different locations, overcoming the limits of the conventional ones which could only transmit one image to a limited location.

Junsuk Rho who is leading research on metamaterials said in a press statement, ‘Microscopic, ultrathin, ultralightweight flat optical devices based on a metasurface is an impressive technique with great potentials as it can not only perform the functions of the conventional optical devices but also demonstrate multiple functions depending on how its metasurface is designed.

Especially, we developed a meta-hologram optical device that operated in forward and backward directions and it could transmit various visual information to multiple users from different locations simultaneously.

We anticipate that this new development can be employed in multiple applications such as holograms for performances, entertainment, exhibitions, automobiles and more.”

Written by Don Wood – MessageToEagle.com Staff