Use of different diffraction formulas in the kernel of the integral equation can give rise to different results, sometimes physically unacceptable. In the case of unstable optical resonators the so called parabolic approximation can allow analytical solution of the problem. By means of a numerical investigation, we show here that it can give rise to results different from those of three more accurate diffraction approximations.
Confronto fra differenti formule della diffrazione nello studio dei risonatori aperti instabili / A. Consortini, F. Pasqualetti. - STAMPA. - (1978), pp. 181-186. (Intervento presentato al convegno Seconda riunione nazionale di Elettromagnetismo Applicato tenutosi a Pavia nel 2-4- Ottobre 1978).
Confronto fra differenti formule della diffrazione nello studio dei risonatori aperti instabili
A. Consortini
;
1978
Abstract
Use of different diffraction formulas in the kernel of the integral equation can give rise to different results, sometimes physically unacceptable. In the case of unstable optical resonators the so called parabolic approximation can allow analytical solution of the problem. By means of a numerical investigation, we show here that it can give rise to results different from those of three more accurate diffraction approximations.
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