Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres

Lithium niobate (LN), as a nonlinear material with a large nonlinear susceptibility, has been widely employed in second harmonic generation (SHG) up to ultraviolet (UV) frequency range due to its broad low-absorption window. In nanophotonics, it is possible to harness the Mie resonances associated w...

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Autores principales: Wang Jiayi, Liu Zhuojun, Xiang Jin, Chen Bo, Wei Yuming, Liu Wenjing, Xu Yi, Lan Sheng, Liu Jin
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Lenguaje:EN
Publicado: De Gruyter 2021
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Acceso en línea:https://doaj.org/article/af9ceac40cbd430d905c18352de4ea3c
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spelling oai:doaj.org-article:af9ceac40cbd430d905c18352de4ea3c2021-12-05T14:10:56ZUltraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres2192-861410.1515/nanoph-2021-0326https://doaj.org/article/af9ceac40cbd430d905c18352de4ea3c2021-09-01T00:00:00Zhttps://doi.org/10.1515/nanoph-2021-0326https://doaj.org/toc/2192-8614Lithium niobate (LN), as a nonlinear material with a large nonlinear susceptibility, has been widely employed in second harmonic generation (SHG) up to ultraviolet (UV) frequency range due to its broad low-absorption window. In nanophotonics, it is possible to harness the Mie resonances associated with the single dielectric particles to boost the nonlinear light–matter interactions. Here, we fabricate single Mie-resonant LN nanospheres on a SiO2 substrate via the femtosecond (fs) laser ablation technique. By exploiting the magnetic dipole (MD) Mie resonance, UV SHG from the LN nanosphere is significantly enhanced with a measured conversion efficiency of 4.45 × 10−8 under the excitation of an fs laser at 750 nm. The single LN nanospheres achieved in this work could serve as Mie resonators for building nonlinear nanophotonic devices such as frequency converters and quantum light sources, etc.Wang JiayiLiu ZhuojunXiang JinChen BoWei YumingLiu WenjingXu YiLan ShengLiu JinDe Gruyterarticlelithium niobatemie resonancenanospheresecond harmonic generationPhysicsQC1-999ENNanophotonics, Vol 10, Iss 17, Pp 4273-4278 (2021)
institution DOAJ
collection DOAJ
language EN
topic lithium niobate
mie resonance
nanosphere
second harmonic generation
Physics
QC1-999
spellingShingle lithium niobate
mie resonance
nanosphere
second harmonic generation
Physics
QC1-999
Wang Jiayi
Liu Zhuojun
Xiang Jin
Chen Bo
Wei Yuming
Liu Wenjing
Xu Yi
Lan Sheng
Liu Jin
Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres
description Lithium niobate (LN), as a nonlinear material with a large nonlinear susceptibility, has been widely employed in second harmonic generation (SHG) up to ultraviolet (UV) frequency range due to its broad low-absorption window. In nanophotonics, it is possible to harness the Mie resonances associated with the single dielectric particles to boost the nonlinear light–matter interactions. Here, we fabricate single Mie-resonant LN nanospheres on a SiO2 substrate via the femtosecond (fs) laser ablation technique. By exploiting the magnetic dipole (MD) Mie resonance, UV SHG from the LN nanosphere is significantly enhanced with a measured conversion efficiency of 4.45 × 10−8 under the excitation of an fs laser at 750 nm. The single LN nanospheres achieved in this work could serve as Mie resonators for building nonlinear nanophotonic devices such as frequency converters and quantum light sources, etc.
format article
author Wang Jiayi
Liu Zhuojun
Xiang Jin
Chen Bo
Wei Yuming
Liu Wenjing
Xu Yi
Lan Sheng
Liu Jin
author_facet Wang Jiayi
Liu Zhuojun
Xiang Jin
Chen Bo
Wei Yuming
Liu Wenjing
Xu Yi
Lan Sheng
Liu Jin
author_sort Wang Jiayi
title Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres
title_short Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres
title_full Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres
title_fullStr Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres
title_full_unstemmed Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres
title_sort ultraviolet second harmonic generation from mie-resonant lithium niobate nanospheres
publisher De Gruyter
publishDate 2021
url https://doaj.org/article/af9ceac40cbd430d905c18352de4ea3c
work_keys_str_mv AT wangjiayi ultravioletsecondharmonicgenerationfrommieresonantlithiumniobatenanospheres
AT liuzhuojun ultravioletsecondharmonicgenerationfrommieresonantlithiumniobatenanospheres
AT xiangjin ultravioletsecondharmonicgenerationfrommieresonantlithiumniobatenanospheres
AT chenbo ultravioletsecondharmonicgenerationfrommieresonantlithiumniobatenanospheres
AT weiyuming ultravioletsecondharmonicgenerationfrommieresonantlithiumniobatenanospheres
AT liuwenjing ultravioletsecondharmonicgenerationfrommieresonantlithiumniobatenanospheres
AT xuyi ultravioletsecondharmonicgenerationfrommieresonantlithiumniobatenanospheres
AT lansheng ultravioletsecondharmonicgenerationfrommieresonantlithiumniobatenanospheres
AT liujin ultravioletsecondharmonicgenerationfrommieresonantlithiumniobatenanospheres
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