An Efficient Deep-Subwavelength Second Harmonic Nanoantenna Based on Surface Plasmon-Coupled Dilute Nitride GaNP Nanowires 2021 (English)In: Nano Letters, ISSN 1530-6984, E-ISSN 1530-6992, Vol. 21, no 8, p. 3426-3434Article in journal (Refereed) Published

Abstract [en]

High-index semiconductor nanoantennae represent a powerful platform for nonlinear photon generation. Devices with reduced footprints are pivotal for higher integration capacity and energy efficiency in photonic integrated circuitry (PIC). Here, we report on a deep subwavelength nonlinear antenna based on dilute nitride GaNP nanowires (NWs), whose second harmonic generation (SHG) shows a 5-fold increase by incorporating similar to 0.45% of nitrogen (N), in comparison with GaP counterpart. Further integrating with a gold (Au) thin film-based hybrid cavity achieves a significantly boosted SHG output by a factor of similar to 380, with a nonlinear conversion efficiency up to 9.4 x 10(-6) W-1. In addition, high-density zinc blende (ZB) twin phases were found to tailor the nonlinear radiation profile via dipolar interference, resulting in a highly symmetric polarimetric pattern well-suited for coupling with polarization nano-optics. Our results manifest dilute nitride nanoantenna as promising building blocks for future chip-based nonlinear photonic technology.

Place, publisher, year, edition, pages

AMER CHEMICAL SOC , 2021. Vol. 21, no 8, p. 3426-3434

Keywords [en]

Dilute Nitride; Nanowires; Second Harmonic Generation; Surface Plasmon

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Identifiers

URN: urn:nbn:se:liu:diva-175992DOI: 10.1021/acs.nanolett.0c05115ISI: 000645560000011PubMedID: 33872022OAI: oai:DiVA.org:liu-175992DiVA, id: diva2:1559015

Note

Funding Agencies|National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [62090035, U19A2090, 61905071, 11874377]; Young Talent Research Program of Hunan Province [2019RS2024]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [531118010277]; Natural Science Foundation of ShanghaiNatural Science Foundation of Shanghai [18ZR1445700]; Key Program of the Hunan Provincial Science and Technology Department [2019XK2001]; International Science and Technology Innovation Cooperation Base of Hunan Province [2018WK4004]; Open Project Program of Wuhan National Laboratory for Optoelectronics [2020WNLOKF002]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009 00971]

Available from: 2021-06-01 Created: 2021-06-01 Last updated: 2021-06-01

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Chen, WeiminBuyanova, Irina

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Electronic and photonic materialsFaculty of Science & Engineering

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