TY - JOUR
T1 - Spectral dynamics of spatially incoherent modulation instability
AU - Sun, Can
AU - Waller, Laura
AU - Dylov, Dmitry V.
AU - Fleischer, Jason W.
PY - 2012/6/27
Y1 - 2012/6/27
N2 - To date, all experiments in nonlinear statistical optics have relied on beams whose transverse spatial statistics were Gaussian. Here, we present a new technique to generalize these studies by using a spatial light modulator to create spatially incoherent beams with arbitrary spectral distributions. As a specific example of the new dynamics possible, we consider the spatial modulation instability of a partially coherent beam. We show that, for statistical beams of uniform intensity and equal correlation length, the underlying spectral shape determines the threshold and visibility of intensity modulations as well as the spectral profile of the growing sidebands. We demonstrate the behavior using statistical light, but the results will hold for any wave-kinetic system, such as plasma, ultracold gases, and turbulent acoustic waves.
AB - To date, all experiments in nonlinear statistical optics have relied on beams whose transverse spatial statistics were Gaussian. Here, we present a new technique to generalize these studies by using a spatial light modulator to create spatially incoherent beams with arbitrary spectral distributions. As a specific example of the new dynamics possible, we consider the spatial modulation instability of a partially coherent beam. We show that, for statistical beams of uniform intensity and equal correlation length, the underlying spectral shape determines the threshold and visibility of intensity modulations as well as the spectral profile of the growing sidebands. We demonstrate the behavior using statistical light, but the results will hold for any wave-kinetic system, such as plasma, ultracold gases, and turbulent acoustic waves.
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U2 - 10.1103/PhysRevLett.108.263902
DO - 10.1103/PhysRevLett.108.263902
M3 - Article
C2 - 23004979
AN - SCOPUS:84863003430
SN - 0031-9007
VL - 108
JO - Physical review letters
JF - Physical review letters
IS - 26
M1 - 263902
ER -