Engineers are familiar with using the Fourier transform to convert between time-varying signals and their corresponding frequency spectrum. What is not as familiar is that spatially varying signals, ...

Researchers at NIST Center for Nanoscale Science and Technology were able to make photons emitted by quantum dots at different frequencies identical to each other by shifting their frequencies to ...

Nanowire (NW) lasers with the NW simultaneously acting as gain medium and optical cavity are attractive for miniaturized photonic integration systems, which have merits of ultracompact footprint, easy ...

Components of a typical laser include gain medium, laser pumping energy and resonant optical cavity. The output frequency of most lasers is fixed or within a small range, and it is difficult to ...

A new type of power-conversion topologies known as "sine amplitude converters" is the driving force behind the high performance achieved by Vicor's line of voltage transformation modules (VTMs). The ...