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Optical and Quantum Electronics

Erschienen in:

01.02.2023

Analysis of dual band emission in SRR integrated terahertz photoconductive antenna

verfasst von: M. Shalini, Haritha Mohan, G. Jemima Nissiyah, M. Ganesh Madhan

Erschienen in: Optical and Quantum Electronics | Ausgabe 2/2023

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Abstract

A novel approach for generating dual-band emission from terahertz (THz) photoconductive antenna (PCA) is reported for the first time, by employing Split Ring Resonator (SRR). The broad emission spectrum is split up into two narrowband emission peaks by incorporating a notch filter action of SRR. The PCA integrated with SRR is excited by a femto-second laser source to generate terahertz radiation. A single SRR ring is introduced in the front side of the PCA and two SRR rings are etched at the back side of the PCA substrate to produce dual emission peaks at 0.1 and 0.41 THz, which is considered as an optimum scheme. The directivity and the gain of the antenna at 0.1 THz are 5.89 dBi and 4.54 dB respectively and at 0.41 THz, it is observed to be 7.47 and 4.94 dBi. Integration of PCA with Split Ring Resonator (SRR) is a novel approach to achieve dual band emissions in terahertz PCA.

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Titel: Analysis of dual band emission in SRR integrated terahertz photoconductive antenna
verfasst von: M. Shalini
Haritha Mohan
G. Jemima Nissiyah
M. Ganesh Madhan
Publikationsdatum: 01.02.2023
Verlag: Springer US
Erschienen in: Optical and Quantum Electronics / Ausgabe 2/2023
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI: https://doi.org/10.1007/s11082-022-04309-z

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