Abstract

We have observed grating-based morphological hole burning in ${\mathrm{Sm}}^{2+}$-doped glass powders at room temperature. When photobleaching on the $4f^6–4f^{5}5d$ transition of ${\mathrm{Sm}}^{2+}$ is combined with multiple light scattering, holes are produced in frequency and wave-vector domains. The hole profile depends on the amount of light absorption of ${\mathrm{Sm}}^{2+}$; it sharpens as the absorption decreases. The variation of the hole shape is explained theoretically based on a diffusion approximation.

© 2003 Optical Society of America

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