A new method in Nature Photonics uses electrochemical fluorescence modulation to separate overlapping signals in multicolor ...

This grating can therefore be used either to steer a beam, modulate its intensity or sensitively tune its wavelength, albeit over a narrow wavelength range. Importantly — and unlike a physical ...

Molotkov realized that the decoy state method is vulnerable to ‘active probing’ attacks on the intensity modulator – a device that controls the number of photons in each coherent state.