Magic Wavelength

Wavelength at which an optical trap's AC Stark shift cancels between clock states, so trapping light leaves the transition unperturbed.

Specifications & Metrics

A wavelength where the light shift (AC Stark shift) of an optical lattice cancels for a chosen transition.
It is significant wherever exact control of atoms, molecules, or particles is essential.
Optical lattice clocks use it to confine neutral atoms such as ytterbium and strontium without decoherence.