The phase and the group velocity of light propagating in conventional optical media cannot exceed the speed of light in vacuum. However, in so-called epsilon-near-zero (ENZ) materials, light exhibits ...

- A step towards the realization of 160 Gbit/s optical transceivers able to simultaneously send and receive ultra high-definition images - AIST has conducted the development of ultra-high-speed ...

Fig. 1. Real part of the dielectric function of isopropanol (IPA) without optical excitation (black line) and with optical excitation leading to the three different electron concentrations of 50, 100 ...

A nanoscale optical device has been developed that allows independent control over the intensity and phase of light. By applying voltage, this innovative device can freely manipulate the phase and ...