Ordinarily, light waves pass through each other without any trouble. But when quantum mechanics is involved, something strange happens: photons can interact through the creation of virtual particles ...

The double-slit experiment is one of the most famous experiments in physics and definitely one of the weirdest. It demonstrates that matter and energy (such as light) can exhibit both wave and ...

A scattering-invariant mode of light is generated by a spatial light modulator. This modulated beam propagates through free space (top) or a strongly scattering medium (bottom) such that the pattern ...

Microscopic switches that route light signals between computer chips like tiny traffic conductors could help make faster, more efficient electronics. Light waves can carry information more easily than ...