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Science fiction often relies heavily on holography to showcase the future of technology. But holographic technology has always seemed a bit out of our wheelhouse, mostly because the technology required to create realistic holographic displays is extremely expensive. But now researchers are doing it on the screen of a regular iPhone.
Currently, the only way holographic displays can be created is by using complex and expensive laser emitters. However, this new approach could be a much more viable tactic for things like virtual reality applications.
The researchers involved in this breakthrough published their findings in the following paper: optical characters. He was able to create a realistic 3D holographic display using just an iPhone’s touchscreen. To demonstrate this capability, they created his two-layer optical reproduction of a full-color three-dimensional image.
They achieved this by using a spatial light modulator to project the first layer. However, the second layer was projected by the screen taken from the iPhone 14. This allowed the researchers to adjust the images to create realistic-looking holographic displays that looked very similar to those created with expensive laser systems.
Although it may seem simple, this approach is quite complex and requires a lot of careful modeling to create the algorithms that adjust the light from the screen and spatial light modulator. But all that work has paid off, and it turns out that a new approach can make holographic displays much more affordable than the expensive laser systems used previously.
We’ve seen some use of holograms in the past, such as when NASA “teleported” a doctor to the ISS. But before we see this new technology, researchers need to find new ways to scale it up and make it more acceptable for commercial and military applications.
However, that doesn’t mean we’ll be having holographic displays in the palm of our hands anytime soon. But researchers have found a way to make this technology more affordable, even if it’s still very complicated.
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