 We've recently been working on new types of artificial materials that we structure at the nanoscale. Our latest development is a material which consists of millions of tiny silicon nanopillars. Each individual pillar is up to 500 times thinner than a human hair. Our new materials perform interesting operations with the light that shines onto them and recently created holograms with these materials. You might be familiar with them from Star Wars movies. Essentially, we are working on the same physical principles that once inspired science fiction writers. Essentially, holograms are devices that perform by far the most complex manipulations with light. In particular, they are able to capture and then reproduce the whole information that light carries in full three dimensions. If you compare them to conventional photographs or computer monitors, then those reproduce only a portion of information of light, basically just the intensity of light, and in two dimensions only. If you think of those conventional optical components like lenses and prisms, then these are bulky and heavyweight. Essentially, to make these components, we use technologies that haven't been changing for centuries. But without our new material, we can create components with the same functionality, that would be essentially flat and lightweight, and this brings so many applications, starting from further shrinking down the sizes of cameras in consumer smartphones and all the way up to space technologies by reducing the size and weight of complex optical systems for satellites. Photonics in the 21st century is playing an important role, just like the electronics in the 20th century. And we are currently having many challenges, and using this holographic principle, it is an ultimate solution to many photonic problems, and its application is only limited to your imagination.