Four-wave interaction of middle-infrared radiation in media with a thermal nonlinearity

Abstract

In this paper, we work out in detail the tadpole cancellation conditions as well as the generalized Green-Schwarz mechanism for type IIB orientifold compactifications on smooth Calabi-Yau three-folds with D3-and D7-branes. We find that not only the D3and D7-tadpole conditions have to be satisfied, but in general also the vanishing of the induced D5-brane charges leads to a non-trivial constraint. In fact, for the case h 1,1 − = 0 the latter condition is important for the cancellation of chiral anomalies. We also extend our analysis by including D9-as well as D5-branes and determine the rules for computing the chiral spectrum of the combined system.

2-kW Average Power CW Phase-Conjugate Solid-State Laser

“…Consider the situation in which a pair of plane waves propagating in an absorbing medium forms a refractive index grating having a spatial period Λ. The steady-state diffraction efficiency η for such a thermal grating follows from the model presented in [14], [15], and for the approximation of weak diffraction, the diffraction efficiency is given by…”

“…The choice of an optimum liquid is essential and is based on the trade study reported in [14]. Consider the situation in which a pair of plane waves propagating in an absorbing medium forms a refractive index grating having a spatial period Λ.…”