TY - JOUR

T1 - Self-assembled photonic structure: a Ga optical antenna on GaP nanowires

AU - Kuznetsov, Alexey

AU - Roy, Prithu

AU - Грудинин, Дмитрий Викторович

AU - Кондратьев, Валерий Михайлович

AU - Кадинская, Светлана Алексеевна

AU - Воробьев, Александр Андреевич

AU - Котляр, Константин Павлович

AU - Убыйвовк, Евгений Викторович

AU - Федоров, Владимир Викторович

AU - Цырлин, Георгий Эрнстович

AU - Мухин, Иван Сергеевич

AU - Арсенин, Алексей Викторович

AU - Волков, Валентин Сергеевич

AU - Большаков, Алексей Дмитриевич

N1 - Kuznetsov A. et al. Self-assembled photonic structure: A Ga optical antenna on GaP nanowires //Nanoscale. – 2023. – Т. 15. – №. 5. – С. 2332-2339.

PY - 2022/12

Y1 - 2022/12

N2 - Semiconductor nanowires are the perfect platform for nanophotonic applications owing to their resonant, waveguiding optical properties and technological capabilities providing control over their crystalline and chemical compositions. The vapor–liquid–solid growth mechanism allows the formation of hybrid metal-dielectric nanostructures promoting sub-wavelength light manipulation. In this work, we explore both experimentally and numerically the plasmonic effects promoted by a gallium (Ga) nanoparticle optical antenna decorating the facet of gallium phosphide (GaP) nanowires. Raman, photoluminescence and near-field mapping techniques are used to study the effects. We demonstrate several phenomena including field enhancement, antenna effect and increase in internal reflection. We show that the observed effects have to be considered when nanowires with a plasmonic particle are used in nanophotonic circuits and discuss the ways for utilization of these effects for efficient coupling of light into nanowire waveguide and field tailoring. The results open up promising pathways for the development of both passive and active nanophotonic elements, light harvesting and sensorics.

AB - Semiconductor nanowires are the perfect platform for nanophotonic applications owing to their resonant, waveguiding optical properties and technological capabilities providing control over their crystalline and chemical compositions. The vapor–liquid–solid growth mechanism allows the formation of hybrid metal-dielectric nanostructures promoting sub-wavelength light manipulation. In this work, we explore both experimentally and numerically the plasmonic effects promoted by a gallium (Ga) nanoparticle optical antenna decorating the facet of gallium phosphide (GaP) nanowires. Raman, photoluminescence and near-field mapping techniques are used to study the effects. We demonstrate several phenomena including field enhancement, antenna effect and increase in internal reflection. We show that the observed effects have to be considered when nanowires with a plasmonic particle are used in nanophotonic circuits and discuss the ways for utilization of these effects for efficient coupling of light into nanowire waveguide and field tailoring. The results open up promising pathways for the development of both passive and active nanophotonic elements, light harvesting and sensorics.

U2 - 10.1039/D2NR04571K

DO - 10.1039/D2NR04571K

M3 - Article

VL - 15

SP - 2332

EP - 2339

JO - Nanoscale

JF - Nanoscale

SN - 2040-3364

IS - 5

ER -