Structure analysis of bimetallic Co–Au nanoparticles formed by sequential ion implantation

Chen, Huajian; Wang, Yuhua; Zhang, Xiaojian; Song, Shuo; Chen, Hong; Zhang, Ke; Xiong, Zu-zhao; Ji, Lü; Dai, Houmei; Wang, Dengjing; Lu, Jian-Duo; Wang, Ru-wu; Zheng, Lirong

doi:10.1016/j.apsusc.2016.03.233

Cited by 9 publications

(2 citation statements)

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“…68 Moreover, in further research, it has been indicated that the shape of the metallic NPs and their dielectric environment determine the surface frequency and consequently the nonlinear optical properties. 65,69,70 NF-RGO (non-covalent functionalized reduced graphene oxide) and NF-RGO/Ag-NPs (NF-RGO decorated with various concentration of silver nanoparticles) were prepared by Sakho et al 71 The open aperture Z-scan technique was used to investigate the nonlinear optics. Tables 3 and 4 show the numerical calculated values of the nonlinear optical parameters at l ¼ 800 nm with femtosecond and l ¼ 532 nm with nanosecond excitation regimes, respectively.…”

Section: Nonlinear Optical Studies Of Agmentioning

confidence: 99%

Nonlinear optical properties of metal nanoparticles: a review

2017

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Metal nanoparticles (MNPs) hold great technological promise because of the possibility of engineering their electronic and optical properties through material design. One of the effective methods to fabricate MNPs is ion implantation. In this review, recent results on the nonlinear optical properties of nanoparticles (including copper, silver, gold, and bismuth nanoparticles) doped in various bases have been discussed. Some specific optical nonlinear properties, such as nonlinear refraction, two-photon absorption, and optical limiting, for femtosecond, picosecond, and nanosecond laser pulses have also been covered. In addition to ion implantation, we have summarized several other methods for the preparation of composite materials, and Z-scan has been used to study the nonlinear optical properties of these materials.

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Section: Nonlinear Optical Studies Of Agmentioning

confidence: 99%

Nonlinear optical properties of metal nanoparticles: a review

2017

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“…Noble metallic nanostructures embedded in a transparent dielectric matrix are of growing interest due to their large third-order optical nonlinearities ascribed to the surface plasmon resonance (SPR) and the quantum size effect. , With the purpose of avoiding reunion and formation of the thermodynamics of bulk materials, noble metallic NPs can be embedded in transparent materials by a few developed technologies, such as ion implantation − and sol–gel methods . The ion beam technology offers versatile solutions for materials modification and also has been applied for the generation and synthesis of various nanoscale structures .…”

Section: Introductionmentioning

confidence: 99%

Giant Enhancement of Nonlinear Optical Response in Nd:YAG Single Crystals by Embedded Silver Nanoparticles

Dong

Cheng

et al. 2017

ACS Omega

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We report on the enhancement and modulation of nonlinear optical response in an Nd:Y 3 Al 5 O 12 (Nd:YAG) laser crystal through embedded silver nanoparticles (NPs) fabricated by Ag + ion implantation. The linear absorption spectrum of the sample clearly reveals a localized surface plasmon resonance (SPR) band from 350 to 700 nm correlated to the Ag NPs. By using the Z-scan technique with femtosecond pulses at a wavelength of 515 nm, which is considered as an optical excitation within the SPR band, the nonlinear refraction index reaches values as high as ∼10 –12 cm 2 /W, enhanced by ∼4 orders of magnitude in comparison to that of unimplanted Nd:YAG (without Ag NPs). In addition, it has been shown that embedded Ag NPs in the Nd:YAG host reveal saturable absorption signifying the nonlinear responses. We have also observed that the nonlinear absorption coefficients depend significantly on the excitation energy and can be modulated by varying the fluence of Ag + ions.

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Broadband, Plasmon‐Modified SnSe₂ Photodetector Based on LNOI Thin‐Film Platform

Liu,

Sun,

et al. 2024

Adv Materials Inter

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Lithium niobate on insulator (LNOI) is widely recognized as an essential optoelectronic integration platform due to its unique ferroelectric properties and photorefractive effect. However, the wide bandgap and weak absorption of lithium niobate limit its further application in integrated photodetection field. To address this issue, encapsulating silver nanoparticles within the LNOI structure are proposed to manipulate the light field distribution of modified lithium niobate through the localized surface plasmon resonance (LSPR) effect and utilize the modified lithium niobate thin film as a functional substrate to tailor the optoelectronic properties of surface SnSe2 nanosheets, significantly enhancing their photodetection capabilities. The photocurrent of the SnSe2 photodetector based on LNOI with embedded Ag nanoparticles is enhanced by up to 1912 times compared to that on the original LNOI under the same conditions, which represents the highest reported plasmonic‐induced photodetection enhancement. This work deepens the basic research on plasmonic‐modified 2D materials and ferroelectric materials, which promotes the development of on‐chip photodetectors and the realization of fully functional photonic circuits that integrate all essential components on a single chip.

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Structure analysis of bimetallic Co–Au nanoparticles formed by sequential ion implantation

Cited by 9 publications

References 15 publications

Nonlinear optical properties of metal nanoparticles: a review

Nonlinear optical properties of metal nanoparticles: a review

Giant Enhancement of Nonlinear Optical Response in Nd:YAG Single Crystals by Embedded Silver Nanoparticles

Broadband, Plasmon‐Modified SnSe₂ Photodetector Based on LNOI Thin‐Film Platform

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Structure analysis of bimetallic Co–Au nanoparticles formed by sequential ion implantation

Cited by 9 publications

References 15 publications

Nonlinear optical properties of metal nanoparticles: a review

Nonlinear optical properties of metal nanoparticles: a review

Giant Enhancement of Nonlinear Optical Response in Nd:YAG Single Crystals by Embedded Silver Nanoparticles

Broadband, Plasmon‐Modified SnSe2 Photodetector Based on LNOI Thin‐Film Platform

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Product

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About

Broadband, Plasmon‐Modified SnSe₂ Photodetector Based on LNOI Thin‐Film Platform