FIELD: spectroscopy.
SUBSTANCE: invention relates to spectroscopy and concerns a spectroscopic device. Spectrometric device includes a scanning interferometer. Interferometer has a beam splitter, a source of monochromatic reference radiation and a source of observed radiation. Reference beam is spread along first path and falls on front surface of beam splitter. Observed optical radiation propagates along second path, falls on front surface of beam splitter and overlaps with reference beam at first front surface of beam splitter. Propagation path of reference and observed beams are arranged relative to each other at an angle greater than half angle of divergence of observed beam.
EFFECT: technical result is high full power of observed beam.
8 cl, 4 dwg
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