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Optical phantoms are a widely used tool to validate optical instrumentation.
In essence, phantoms are "false tissues" made of various materials and can be
liquid, solid, or gelatinous. Generally, phantoms are made to either simulate a
tissue’s optical, mechanical, chemical, or physical properties, or a combination
of these. These structures are typically comprised of a base substrate material,
which can be doped with certain additives that give the material specific optical,
mechanical, or chemical properties. Additionally, depending on the substrate
material used and desired geometry, optical phantoms can be molded into a variety
of shapes and sizes for different applications.
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