Intense terahertz antenna array with interdigital electrodes

Lei Hou; Wei Shi; Ming Xu

doi:10.1117/12.819267

16 February 2009 Intense terahertz antenna array with interdigital electrodes

Lei Hou, Wei Shi, Ming Xu

Proceedings Volume 7277, Photonics and Optoelectronics Meetings (POEM) 2008: Terahertz Science and Technology; 727703 (2009) https://doi.org/10.1117/12.819267
Event: Photonics and Optoelectronics Meetings, 2008, Wuhan, China

Abstract

In this work a powerful terahertz antenna array with interdigital electrodes is fabricated, and the performance of one antenna unit is compared with a conventional resonant dipole antenna. The antenna unit has a better capacity of generating THz wave compared with a conventional resonant dipole antenna at the same bias electrical field and the same laser energy. However only 23 % of THz wave transmitted through the ceramic substrate of antenna array, if there is a hole drilled through ceramic substrate to release the THz wave, the THz amplitude of entire interdigital antenna array with 8 antenna units can be more than 10 times larger than that of resonant dipole antenna. To get this result, the pump beam is focused into a linear beam by a cylindrical lens to trigger the antenna array, and the linear THz wave is focused by a polyethylene lens before it reaches ZnTe crystal.

Citation Download Citation

Lei Hou, Wei Shi, and Ming Xu "Intense terahertz antenna array with interdigital electrodes", Proc. SPIE 7277, Photonics and Optoelectronics Meetings (POEM) 2008: Terahertz Science and Technology, 727703 (16 February 2009); https://doi.org/10.1117/12.819267

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