 Our smart mirror consists of a lot of dielectric nanoparticles which are carefully designed and arranged within a single layer. By adjusting the temperature of that thin layer, we are able to control the optical properties of those nanoparticles so that the entire surface can either transmit or reflect the incoming light on demand. In today's technology, all optical circuits consist of the elements which work aesthetically. It means they either transmit the light or reflect the light or something in between. But by other technology, for the first time you can have a single element which can have all those functions at the same time and you can control the light passing through or reflects. As we know, the temperature in this space varies a lot. Just imagine you can have a smart mirror which can reflect different frequencies at different temperatures. It can give a great platform to protect the devices or astronauts in different environments in the space. Currently our device works in infrared but the principle is quite extendable to other frequencies as well including visible which opens whole range of new types of location including architectural one where for example in your bathroom your window becomes a mirror. What I love about this design is actually combined different areas including physics, material design and engineering where we start from the optical properties of the bulk material and through the nanoparticle which is this new functionality we are able to respond to the whole structure.