Phase-sensitive optical parametric amplification (OPA) represents a pivotal advance in optical communications, exploiting the nonlinear interaction between a strong pump and a weak signal to achieve ...
Dispersion is an inherent feature of electromagnetic waves. It allows light to behave differently at different wavelengths, ...
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 ...
KAIST researchers tested optical frequency comb lasers as reference signals for radio astronomy, aiming to synchronize radio telescopes with light-based timing in VLBI observations.
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