Dy. Kim et al., 2ND-ORDER CASCADING AS THE ORIGIN OF LARGE 3RD-ORDER EFFECTS IN ORGANIC SINGLE-CRYSTAL-CORE FIBERS, Optics letters, 19(12), 1994, pp. 868-870
We have identified cascading of second-order nonlinear processes as th
e origin of previously reported, very large nonlinearities measured by
self-phase-modulation experiments in organic single-crystal-core fibe
rs of 4-(N,N-dimethylamino)-3-acetamidonitrobenzene.