
thumb|200px|Conceptual animation of the dispersion (or breaking down) of light thumb|200px|Monochromator in an x-ray beamline at the [[Advanced Photon Source, Argonne National Laboratory.]]
thumb|200px|Conceptual animation of the dispersion (or breaking down) of light thumb|200px|Monochromator in an x-ray beamline at the [[Advanced Photon Source, Argonne National Laboratory.]]
A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider range of wavelengths available at the input. The name is .
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).