Intrinsic localized modes and chaos in damped driven rotator lattices

It is shown that intrinsic localized rotational modes (ILRMs) in parametric ally driven damped lattices of coupled classical dipole rotators can become chaotic without losing their localized character. Insight into this behavi or is obtained by means of a nonlinear stability analysis. Moreover, we dis cuss a robust scheme for exploiting a spatially extended chaotic state to g enerate stationary randomly spaced arrays of driven ILRMs, and show that th e associated absorption exhibits unusual signatures. [S1063-651X(99)51308-1 ].