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Multi-Point Fabrication of Terahertz Metal Mesh Filters


Multi-Point Fabrication of Terahertz Metal Mesh Filters

A metal mesh filter is fabricated by creating metallic squares on a dielectric substrate. This capacitive metallic filter is fabricated using direct write laser ablation consisting of a femtosecond laser in combination with a high numerical aperture objective. A multipoint fabrication approach is employed by using a holographic beam splitter element to split the beams into several identical gaussian beams. The transmission and reflection characteristics are discussed.

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