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Artículo

Optically tunable split-ring resonators controlled lead sulfide quantum dots modulator for wide THz radiation

Xu Yifei et al · Wiley · 2022

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Author / responsible party
Xu Yifei et al
Publisher
Wiley
Year
2022
ISSN
2192-8614
ISSN
2192-8614
Language
English
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3-D near-field imaging of guided modes in nanophotonic waveguides

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It is particularly appealing for efficient active terahertz (THz) modulators using photonic structures to enhance light–matter interaction. Here, an optical controlled THz modulator is proposed that combines lead sulfide (PbS) quantum dots with subwavelength metallic split-ring resonators (SRRs) for providing field enhancement. The modulation depth reaches 60.3%, which is approximately 3 times larger than the PbS quantum dots film without SRRs (as reference) in the frequency range of 0.1–1.1 THz. Such significant enhanced THz modulation is mainly due to the local THz field enhancement caused by the SRRs, which is consistent with the simulation result.

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APA 7

al, X. Y. E. (2022). Optically tunable split-ring resonators controlled lead sulfide quantum dots modulator for wide THz radiation. https://doi.org/10.1515/nanoph-2021-0808

MLA

al, Xu Yifei et. "Optically tunable split-ring resonators controlled lead sulfide quantum dots modulator for wide THz radiation." 2022. https://doi.org/10.1515/nanoph-2021-0808.

Chicago

al, Xu Yifei et. 2022. "Optically tunable split-ring resonators controlled lead sulfide quantum dots modulator for wide THz radiation.". https://doi.org/10.1515/nanoph-2021-0808.

Harvard

al, X. Y. E. 2022, Optically tunable split-ring resonators controlled lead sulfide quantum dots modulator for wide THz radiation, Wiley, available at: https://doi.org/10.1515/nanoph-2021-0808 [Accessed 10 Aug. 2026].

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Title
Optically tunable split-ring resonators controlled lead sulfide quantum dots modulator for wide THz radiation
Author / contributors
Xu Yifei et al
Publisher
Wiley
Publication year
2022
ISSN
2192-8614
ISSN
2192-8614
Language
English

Subjects

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optically tunable; pbs quantum dots; split-ring resonators; thz modulator
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