Optical: systems and elements – Light interference – Produced by coating or lamina
Reexamination Certificate
2008-06-26
2009-08-11
Amari, Alessandro (Department: 2872)
Optical: systems and elements
Light interference
Produced by coating or lamina
C359S582000, C359S587000, C359S589000
Reexamination Certificate
active
07573639
ABSTRACT:
A terahertz band optical filter having a dielectric multilayer periodic structure in which a plurality of dielectric materials are periodically layered. Multi-cavity layers each having an optical path length of n times λ/2 (n is an integer greater than or equal to 1) and made of a low-refractive index medium are arranged. The cavity layers are coupled using a single-layer coupling layer having an optical path length λ/4 and made of a high-refractive index medium, thus forming a multi-cavity structure. Matching layers each including a high refractive index layer and a low refractive index layer each having an optical path length of λ/4 are disposed at either end of the multi-cavity structure.
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Amari Alessandro
Dickstein , Shapiro, LLP.
Murata Manufacturing Co. Ltd
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