Squared-field amplitude modulus and radiation intensity nonequivalence within nonlinear slabs

Details Squared-field amplitude modulus and radiation intensity nonequivalence within nonlinear slabs Squared-field amplitude modulus and radiation intensity nonequivalence within nonlinear slabs

2004-08-24

arxiv.org/abs/physics/0408104v2

Phys. Rev. E 71, 056614 (2005)

Physics

Optics

5 pages, 4 figures, added space-time symmetry analysis and references

Scientific paper

10.1103/PhysRevE.71.056614

This paper presents a novel approach to wave propagation inside the Fabry-Perot framework. It states that the time-averaged Poynting vector modulus could be nonequivalent with the squared-field amplitude modulus. This fact permits the introduction of a new kind of nonlinear medium whose nonlinearity is proportional to the time-averaged Poynting vector modulus. Its transmittance is calculated and found to differ with that obtained for the Kerr medium, whose nonlinearity is proportional to the squared-field amplitude modulus. The latter emphasizes the nonequivalence of these magnitudes. A space-time symmetry analysis shows that the Poynting nonlinearity should be only possible in noncentrosymmetric materials.

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