Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm

Maurya, Sandeep Kumar; Rout, Anuradha; Ganeev, R. A.; Chen, Guo

doi:10.1155/2019/9686913

Cited by 25 publications

(6 citation statements)

References 56 publications

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“…The enhancement in the third-order nonlinear optical response can be attributed to surface plasmon absorption effects of Ag NPs [ 43 ]. A nonlinear absorption coefficient and nonlinear refractive index are strongly dependent on the NP concentration in the solutions and the duration of pulses [ 44 ]. In addition, a fast photoresponse is characteristic in CNT-decorated samples [ 45 ].…”

Section: Resultsmentioning

confidence: 99%

Navigation of Silver/Carbon Nanoantennas in Organic Fluids Explored by a Two-Wave Mixing

et al. 2020

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Within this work are analyzed third-order nonlinear optical properties with a potential influence on the dynamic mechanics exhibited by metal/carbon nanofluids. The nanofluids were integrated by multiwall carbon nanotubes decorated with Ag nanoparticles suspended in ethanol or in acetone. Optical third-order nonlinearities were experimentally explored by vectorial two-wave mixing experiments with a Nd-YAG laser system emitting nanosecond pulses at a 532 nm wavelength. An optically induced birefringence in the metal/organic samples seems to be responsible for a significant modification in density and compressibility modulus in the nanosystems. The measured nonlinear refractive index was associated with a thermal process together with changes in density, compressibility modulus and speed of sound in the samples. Nanofluid diffusivity was studied to characterize the dynamic concentration gradients related to the precipitation of nanostructures in the liquid solutions. The evolution of the nanoparticle density suspended in the nanofluids was considered as a temporal-resolved probabilistic system. It is stated that the incorporation of Ag nanoparticles in carbon nanotubes produces strong mechanical changes in carbon-based nanofluids. According to numerical simulations and optical evaluations, immediate applications for developing dynamic nanoantennas optical logic gates and quantum-controlled metal/carbon systems can be contemplated.

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Section: Resultsmentioning

confidence: 99%

Navigation of Silver/Carbon Nanoantennas in Organic Fluids Explored by a Two-Wave Mixing

et al. 2020

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“…On the other hand, Maurya and co-workers published the study of TPA dependence of silver nanoparticles (AgNPs) and their concentration in a solution. The results show that the TPA predominates over the SA when the size of AgNPs is smaller, in addition to the SA being dominant over the TPA when the concentration is higher [20].…”

Section: Introductionmentioning

confidence: 94%

Measurement of two-photon absorption by gold nanoparticles of different sizes photodeposited onto the core of an optical fibre

Cuvas-Limón¹,

Ortega-Mendoza²,

Padilla-Martínez³

et al. 2021

physics

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In this work, the study of two-photon absorption by gold nanoparticles of different diameters photodeposited onto the core of a single-mode optical fibre is presented. The photodeposition of nanoparticles with diameters of 10, 20, 50 and 100 nm was achieved using a continuous wave laser at a wavelength of 1550 nm and a power of 50 mW. Nonlinear optical characterization was carried out by using the P-scan technique of a high gain erbium doped fibre amplifier with pulses of 20 ns at a frequency of 10 kHz, that provides a maximum intensity of approximately 60 MW/cm2. The results show that for gold nanoparticles greater than 20 nm photodeposited onto the fibre, in both cases, the nonlinear coefficient as well as the third-order susceptibility increase as the diameter of the nanoparticles increases, describing a typical behaviour of the two-photon absorption. The obtained results can be used for the design of filters and optical limiters in the communications area.

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“…Meanwhile, plasma characteristics significantly differ with the duration of ablating laser pulse, leading to variations in absorption, heating, and ablation [32][33][34][35][36]. The spatiotemporal distribution of plasma produced by long laser pulses differs from that produced by short laser pulses [37][38][39].…”

Section: Introductionmentioning

confidence: 99%

High-order harmonics generation in nanosecond-pulses-induced plasma containing Ni-doped CsPbBr₃ perovskite nanocrystals using chirp-free and chirped femtosecond pulses

et al. 2022

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We demonstrate high-order harmonic generation in Ni-doped CsPbBr3 perovskite nanocrystals ablated by nanosecond pulses using chirp-free 35 fs, and chirped 135 fs pulses in the case of single-color pump (800 nm) and a two-color pump (800 nm and 400 nm). We analyzed the spectral shift, cut-off, and intensity distribution of harmonics in the case of chirped drving pulses compared to chirp-free pulses. It is shown that the presence of Ni dopants and CsPbBr3 plasma components improves the harmonics emission. Also, we measured the third-order nonlinear optical (NLO) properties of these nanocrystals using 800 nm, 60 fs, 1 kHz pulses. The variations of measured NLO parameters of CsPbBr3 perovskite nanocrystals containing different concentrations of nickel correlate with variations of generated high-order harmonics from laser induced plasmas of studied nanocrystals in terms of harmonics intensity, cut-off, and spectral shift (in case of chirped driving pulses). The spectral shift of the harmonics generated from the Ni-doped CsPbBr3 perovskite nanocrystals can be used to form tunable extreme ultraviolet sources.

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Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm

Cited by 25 publications

References 56 publications

Navigation of Silver/Carbon Nanoantennas in Organic Fluids Explored by a Two-Wave Mixing

Navigation of Silver/Carbon Nanoantennas in Organic Fluids Explored by a Two-Wave Mixing

Measurement of two-photon absorption by gold nanoparticles of different sizes photodeposited onto the core of an optical fibre

High-order harmonics generation in nanosecond-pulses-induced plasma containing Ni-doped CsPbBr₃ perovskite nanocrystals using chirp-free and chirped femtosecond pulses

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Effect of Size on the Saturable Absorption and Reverse Saturable Absorption in Silver Nanoparticle and Ultrafast Dynamics at 400 nm

Cited by 25 publications

References 56 publications

Navigation of Silver/Carbon Nanoantennas in Organic Fluids Explored by a Two-Wave Mixing

Navigation of Silver/Carbon Nanoantennas in Organic Fluids Explored by a Two-Wave Mixing

Measurement of two-photon absorption by gold nanoparticles of different sizes photodeposited onto the core of an optical fibre

High-order harmonics generation in nanosecond-pulses-induced plasma containing Ni-doped CsPbBr3 perovskite nanocrystals using chirp-free and chirped femtosecond pulses

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Product

Resources

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High-order harmonics generation in nanosecond-pulses-induced plasma containing Ni-doped CsPbBr₃ perovskite nanocrystals using chirp-free and chirped femtosecond pulses