Wigner and Weisskopf were the first to derive the delta function spectrum of this process at low intensities.
Wigner and Weisskopf were the first to derive the delta function spectrum of this process at low intensities. At high intensities, the spectrum of this process in a simple two-level driven system takes on the form of three Lorentzians, consisting of a central peak and two sidebands that peak at the central frequency plus or minus the Rabi frequency, a result known as the Mollow triplet. Carmichael and Walls first derived the result that showed that a single-atom version of this process would demonstrate photon anti-bunching, or, the tendency of the emitted light to be spaced coherently, an effect observed experimentally by Kimble. Though it is not the Raman effect, this process can exhibit a phenomenon in which the time required for emission results in an energy loss, known as the (*) Stokes shift. The efficiency of this process, which emits photons that have sub-Poissonian statistics, is usually measured by a ratio called the quantum yield. For 10 points, identify this process in which a stimulated system re-emits light at a different frequency.
Wigner and Weisskopf were the first to derive the delta function spectrum of this process at low intensities.
fluorescence [accept word forms]