Newport Thin Film Laboratory
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Newport Thin Film Laboratory
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Low pass filters pass regions that are shorter in wavelength (higher in energy) that the blocking band. Low pass filters often employ absorptive filter glass, since region blocked by reflectance is limited in bandwidth by the interference of the harmonics of the blocking band with the desired pass band.
Typical low pass filter at normal incidence on borosilicate glass
Newport Thin Film Laboratory ¨ (800) 854-0089 ¨ www.newportlab.com |
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