Abstract
We present the finding that photoluminescence intensity in crystal is enhanced after exposure to a femtosecond laser beam. After the crystal was illuminated with laser light of during , photoluminescence intensity was increased approximately 20%. The region in which photoluminescence intensity was enhanced was localized in the optical axis, because this phenomenon occurred in the two-photon excitation process. It is possible to achieve three-dimensional control of photoluminescence intensity by illumination with laser light.
© 2007 Optical Society of America
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