Fig. 3: Efficiency decay in the NLPE memory.
From: Elimination of noise in optically rephased photon echoes
Each data point represents the area of the readout echo over a 4-μs window. The echo traces are included for reference. a The decay of the echo intensity for varying delay τ3 = 2(t3 − t2). b The decay of the echo intensity for varying delay τ2 = t4 − t1. The red lines are Gaussian fits based on Eq. (2).
