And, yes, by controlling the relative phase and amplitude of the four beams of light, the researchers could produce a focus anywhere inside the square formed by the beams. I find that absolutely ...

New graphene-based metasurface capable of independent amplitude and phase control of light Date: February 20, 2020 Source: The Korea Advanced Institute of Science and Technology (KAIST) ...

At each pixel, you can vary two properties: the phase and the amplitude. The variation task is done by a spatial light modulator. The amplitude ... You image the output beam.

Complex light modulation—controlling light’s amplitude and phase—is key to many laser applications such as optical tweezers and holographic displays. To achieve such modulation at high ...

image: Figure 2 VHTS coverage for Asia-Pacific region(976 0.25°beams) view more . Credit: Space: Science & Technology. First, the payload requirements and problems faced by traditional multi-beam ...

Using a novel imaging technique, they developed quantum protocols to simultaneously image both the amplitude and phase of AC stray fields over a wide frequency range up to 2.3 MHz.