Modern technologies for playing color holographic video are no longer fiction. Daniel Smalley, Researcher at MIT, has built a holographic panel with a resolution similar to today's televisions. The panel can play video at 30 frames per second. Interestingly, the display is powered by optical chips that Smalley put together with a $ 10 budget.
Smalley and his team used a small lithium niobate crystal to create the hologram. On its basis, waveguides are created, each of which has a metal electrode for generating an acoustic wave. The wave scales and changes color, thus displaying one row of pixels in the image.
If the technology is perfected, the result could be panels that are more efficient than current LCDs.
“The most exciting thing about the new waveguide platform is that it is a completely different way of spatial modulation of light than is used in current holographic projectors, ” says Smalley.
A lot has been said about holographic technologies in recent years. But from a consumer point of view, things have not progressed much. Smalley's research, of course, does not mean that we will see new holographic TVs in stores by the New Year. But this is a good reminder that the technology is not abandoned and may turn into something real in the coming years.