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We present an all-dielectric meta-lens designed to collimate terahertz waves emitted from a terahertz antenna. The meta-lens is not only thinner than a conventional bulk silicon lens, but also promises to eliminate the use of parabolic mirrors in a terahertz time-domain spectroscopy system. A systematic numerical study reveals that the meta-lens exhibits excellent performance in both the emitter and...
In this article, we investigated the fabrication and characteristics of Pd germanide Schottky contacts on n-type Ge substrate. It is shown that the lowest sheet resistance and uniform Pd germanide can be obtained by a one step RTP at 400°C for 30 sec. The proposed Pd germanide/nGe contact exhibited electron Schottky barrier height and work function of 0.565~0.577 eV and 4.695~4.702 eV, respectively...
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