A recently developed optical diffraction tomography technique [J. Opt. Soc. Am. A 26, 19 (2009)] is modified to handle the special case of a dispersionless scatterer, where the relative permittivity contrast of the object is independent of the operation frequency, allowing the fusion of multifrequency data. The modified technique is illustrated with a simulation scenario involving a dispersionless and lossless object being probed with plane waves of distinct incidence angles and frequencies. Superiority of the fusion of multifrequency data over the use of single-frequency data is demonstrated.
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