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A variational approach to the theory of the open resonator

A. L. Cullen, P. Nagenthiram, A. D. Williams

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Source: Crossref

Published: Aug 8, 1972

DOI: 10.1098/rspa.1972.0106

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Source abstract

Abstract A variational calculation of tho resonant frequency of an open resonator with spherical mirrors is used to establish the accuracy of the beam-wave theory of such resonators. It is concluded that the inherent error of the beam-wave formula for resonant frequency is of the order of (kw0)-4, where w0 is the scale radius of the beam waist. This result is confirmed by experiment.

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