Abstract
High resolution, fast optical hole burning results are reported for the amorphous system cresyl violet in ethanol glass at 1.3 K. Holes are burned and detected using a novel technique which allows precise detection of narrow (≈ 0.03 cm −1), shallow (≈ 1%) holes 10 μ to 50 ms after their generation. The hole width is observed to change linearly when plotted against log time. Using a four point correlation model of optical hole burning, this spectral diffusion is shown to arise from a 1/ R distribution of fluctuation rates. The distribution extrapolates to the value of the two pulse photon echo linewidth measured on the same system.
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