persistent spectral holeburning

persistent spectral holeburning

[pər′sis·tənt ′spek·trəl ′hōl‚bərn·iŋ]
(optics)
A process in which radiation from a narrow-band laser source sharply reduces the absorption of a solid within a frequency range that is much smaller that the linewidth of an inhomogeneously broadened transition.
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