Optical filters are among the most frequently used optical devices. Application areas include optical communications, imaging, spectroscopy, lithography, astronomy, and almost any other technology dealing with light. Various optical filters have been developed and differ by optical properties, applications, physical base, and so on. However, all optical filters modify of the transmission or reflection spectra.
KeywordsOptical Communication Optical Waveguide Optical Filter Plane Electromagnetic Wave Macroporous Silicon
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