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In this Letter, we introduce a definition of the nonlinear finite-time Lyapunov exponent (FTLE), which is a nonlinear generalization to the existing local or finite-time Lyapunov exponents. With the nonlinear FTLE and its derivatives, the limit of dynamic predictability in large classes of chaotic systems can be efficiently and quantitatively determined.
Semiconductor InN nanowire arrays were uniformly assembled into the hexagonally ordered nanochannels of anodic alumina membranes (AAM) through the direct reaction of indium and ammonia. The morphology and microstructures of sample were characterized by X-ray diffraction, scan electron microscopy, and transmission electron microscopy. A broad blue–green photoluminescence (PL) band in the wavelength...
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