Terahertz Emission Enhancement of Gallium-Arsenide-Based Photoconductive Antennas by Silicon Nanowire Coating

Cabello, Neil Irvin; Reyes, Alexander De Los; Sarmiento, Vladimir; Ferrolino, John Paul; Vistro, Victor Dc Andres; Vasquez, John Daniel; Bardolaza, Hannah; Kitahara, Hideaki; Tani, Masahiko; Salvador, A.; Somintac, Armando; Estacio, Elmer

doi:10.1109/tthz.2021.3115726

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2024

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Cited by 2 publications

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“…The approximate frequency of the terahertz radiation produced in generating antennas is calculated by the following equation [14]:…”

Section: Theoretical Basismentioning

confidence: 99%

Investigation of the Negative Effect of the Surrounding Dielectric on the Antenna on the Spectral Response of the THz Antenna Detector

Bani

Nazeri²,

Bidgoli³

2021

IJOP

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In this paper, the frequency response of a detector antenna is investigated when a layer of dielectric is placed on it. For this purpose, the surface wave theory has been used to explain the propagation of the current pulses in the antenna electrodes. Examinations are also performed of the propagation spectra of two types of terahertz antennas, bow-tie and dipole (with LT-GaAs substrates), on which the dielectrics of gallium arsenide and silica are located. These antennas are simulated through the CST software (FDTD method). The simulations show that the presence of a surrounding dielectric on the surface of an antenna affects the velocity of the current pulse propagation on the electrodes. It is also shown that the change in the thickness and position of the surrounding dielectric have a negative effect on quality of detector antenna by shift its spectral response to lower frequencies.

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“…The approximate frequency of the terahertz radiation produced in generating antennas is calculated by the following equation [14]:…”

Section: Theoretical Basismentioning

confidence: 99%

Investigation of the Negative Effect of the Surrounding Dielectric on the Antenna on the Spectral Response of the THz Antenna Detector

Bani

Nazeri²,

Bidgoli³

2021

IJOP

View full text Add to dashboard Cite

show abstract

Terahertz emission improvement of gallium-arsenide-based bowtie photoconductive antenna by AAO-patterned gold nanoparticles integration on the photoconducting gap

Dela Rosa,

Alaba,

Cabello

et al. 2024

Optical Materials

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Terahertz Emission Enhancement of Gallium-Arsenide-Based Photoconductive Antennas by Silicon Nanowire Coating

Cited by 2 publications

References 26 publications

Investigation of the Negative Effect of the Surrounding Dielectric on the Antenna on the Spectral Response of the THz Antenna Detector

Investigation of the Negative Effect of the Surrounding Dielectric on the Antenna on the Spectral Response of the THz Antenna Detector

Terahertz emission improvement of gallium-arsenide-based bowtie photoconductive antenna by AAO-patterned gold nanoparticles integration on the photoconducting gap

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