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arXiv · 1408.0821

Design and performance of a terahertz photoconductive antenna with nano-crossfinger structure

Jitao Zhang
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Abstract

Improving terahertz(THz) radiation power and/or optics-to-THz efficiency of the photoconductive antenna(PCA) is widely recognized as one of the most attractive and challenging missions in THz community. In this work, the design of a THz PCA with nano-crossfinger structure in the active region is proposed. The THz radiation properties of this PCA was demonstrated by finite-difference-time-domain method based on full-wave model. As a comparison, the PCA with nano-finger structure that promises enhanced THz radiation than conventional PCA was also analyzed numerically. The results indicate that the nano-crossfinger PCA can radiate even higher THz field than the nano-finger PCA, primarily due to the enhanced bias field within the nano-structure.

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Jitao Zhang. 2014-08-04. Design and performance of a terahertz photoconductive antenna with nano-crossfinger structure. https://arxiv.org/abs/1408.0821

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