Abstract
We demonstrate rejuvenation in scale-free optical propagation. The
phenomenon is caused by the non-ergodic relaxation of the dipolar
glass that mediates the photorefractive nonlinearity in compositionally-disordered
lithium-enriched potassium-tantalate-niobate (KTN:Li). We implement
rejuvenation to halt aging in the dipolar glass and extend the duration
of beam diffraction cancellation.
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