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Beam Splitter (Metallic & Dielectric) |
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A beam splitter is an optical device used
to divide a beam into two or more separate beams. It will
reflect a portion of incident energy and transmit the
remaining energy. They can be spectrally selective or
neutral. This metallic coating gives approximately 30%
transmittance & reflectance at 45 Deg.
for
un-polarized light, 40% is absorbed. This coating is usable
from 0.2 to over 2 microns. |
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Beam Splitter (Dielectric) |
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These
hi-efficiency coatings can be designed to provide a very
wide range of reflectance and transmittance ratios for
single wavelengths and polarization states. They are
wavelength dependent. This type of a beam splitter will
produce multiple beams in both reflection and
transmission from multiple reflections between the
surfaces. |
