Reply to the paper “comments on the theory of phase-conjugated waves”, by E. Wolf and W.H. Carter

The NH₄Br crystal is irradiated simultaneously with a modulated red light and a steady UV light in the region of the fundamental absorption band. The resulting recombination luminescence of electrons with V_K centers is phase-sensitively detected, and compared with the emission which is directly excited by UV light. From measurements of the excitation spectra for recombination luminescence, it is pointed out that the dissociation of free excitons occurs efficiently in NH₄Br.     

Reply to comments on "On asymptotic matching and the sheath Edge"

In our recent paper [Sternberg and Godyak (2004)], we have solved the plasma-sheath problem using asymptotic matching techniques. We have shown that the position of the sheath edge obtained by asymptotic matching yields the position of the ion sheath edge determined by Godyak's condition (E=kT/sub e//(e/spl lambda//sub D1/)) [Godyak (1982)]. In addition, we were able to show how the sheath width depends on the voltage applied to the wall. Our results are theoretical, grounded in mathematics. We used numerical computations mainly to illustrate our point. We have written our paper with great care, so that any scientist, even one not familiar with the intricacies of asymptotic matching, could understand our exposition and be convinced in the correctness of our results. Kaganovich (2004) reproduced our theoretical results numerically up to /spl epsi/=10/sup -11/. Franklin (2004) published a review adapting our results and interpretations. However, we were not able to convince Riemann, although he reproduced some of our results numerically [Riemann (2004)]. This paper is a response to Riemann's comments [Riemann (2004)].     

Reply to comment by E. Comay on the longitudinal magnetic field of circularly polarized electromagnetic waves

The argument presented by E. Comay in Ref. 1 is in error precisely at the point where he uses the Cartesian form of Stokes' theorem. His Comment is therefore erroneous and inconsequential.     

Reply to comments on “laser excitation of surface electronic states for a one-dimensional semiconductor” by G.W. Bryant

A semiconductor modeled by a finite one-dimensional chain is shown to have either a continuous or discrete number of surface states. The exact number is determined by the choice of phase factors. Laser-induced charge transfer of electrons from the bulk to these surface states is also shown to be a maximum at the band edge.     

Once more into the barrier: Reply to another comment by B.D. Kay and M.E. Coltrin

The most recent comments by Kay and Coltrin are contrasted with the actual state of the current literature.