A US firm hoping to build the very first off-planet power grid has raised $65million to turn its vision into reality ...
Abstract: We propose a novel and simple method for constructing a switchable polarization-independent Fresnel lens using blue phase liquid crystal (BPLC)/polymer composite films, the maximum ...
Abstract: In recent years, the potential of orbital angular momentum (OAM) (de)multiplexing to greatly increase the capacity of optical communications has attracted tremendous attention worldwide.
In this video I test out my new giant Fresnel lens. I show how it ignites wood in about 1 second. Then I stick a rock under the lens and it immediately starts popping do to the extreme heat. The rock ...