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High-contrast polarization spectroscopy of photochemically burned spectral holes in amorphous solids: potential for fast optical storage

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Dick, Bernhard
Date of publication of this fulltext: 05 Aug 2009 13:50


Polarization spectroscopy was used to detect persistent spectral holes photochem. burned into the electronic absorption band of a guest mol. in an amorphous host. Tetraphenylporphin doped into a PMMA matrix was studied as an example. The polarization technique improved the contrast ratio (increase of intensity at the hole over background) by a factor of >200. Applications to fast readout of optical memories and line-narrowing spectroscopy are discussed.

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