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Multispectral interference techniques are widely used in biomedicine and science for quantitative characterization of morphological, chemical and other properties. These techniques, for example, multispectral digital holography and spectral-domain optical coherence tomography, require wavelength tuning in the interferometer. In this paper, we discuss the effectiveness and potential applications of acousto-optic light filtration for this purpose. We show experimentally that acousto-optical tunable filters are effective for simultaneous spectral and phase data collection not only in conventional dual-path interferometers but also in a common-path interferometer. Scheme of a compact spectral interferometric module based on such interferometer is presented.

Key functions of the RAS Library for Natural Sciences are highlighted. The processes of catalog organization, development and update using BIBLIOBUS AILS are examined. Basic requirements to bibliographic record technology are discussed. The authors conclude that cataloguers need to access to reconciled cumulative reference information resources to consolidate the catalog and to ensure its reliable quality control.