Strong third-order optical nonlinearities of Ag nanoparticles synthesized by laser ablation of bulk silver in water and air

Boltaev, Ganjaboy S.; Ganeev, R. A.; Krishnendu, P. S.; Maurya, Sandeep Kumar; Redkin, P. V.; Konda, Srinivasa Rao; Zhang, Kai; Chen, Guo

doi:10.1007/s00339-018-2195-z

Cited by 24 publications

(13 citation statements)

References 43 publications

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“…Notice that in our case, we present the nonlinear absorption coefficient of the suspension (not a single NP), which was just two orders of magnitude smaller (3 × 10 −7 cm W −1 ) than the one of Ag NPs reported in Ref. [38]. It means that once we assume the similar volume part of chemically prepared NPs in our suspension (10 -3 ), the NP nonlinear absorption coefficient will surpass the one in the case of ablation-produced silver nanoparticles.…”

Section: Discussioncontrasting

confidence: 61%

“…Recently, the nonlinear optical studies of the Ag NPs prepared by another method, i.e., during ablation of bulk silver in water using different wavelengths and durations of heating pulses, were reported [38]. The joint appearance of nonlinear optical refraction and absorption was analyzed using the 1064 nm, 5 ns and 800 nm, 60 fs probe pulses.…”

Section: Discussionmentioning

confidence: 99%

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Interaction of Pulses of Different Duration with Chemically Prepared Silver Nanoparticles: Analysis of Optical Nonlinearities

Zhang

Ganeev

Konda

et al. 2019

Journal of Nanomaterials

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The nonlinear optical properties of the aqueous solutions of silver nanoparticles (Ag NPs) prepared by chemical reduction method are analyzed using femtosecond and picosecond pulses at different wavelengths. In the case of 800 and 400 nm, the growths of nonlinear absorption and nonlinear refraction with the increase of Ag NP concentration, as well as a change at the signs of nonlinear optical processes, are determined. The nonlinear absorption coefficient and nonlinear refractive index of Ag NP solutions measured using picosecond pulses were a few orders of magnitude larger than those in the case of femtosecond probe pulses. We also demonstrate the optical limiting properties of Ag NPs using 800 nm, 60 fs pulses.

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Section: Discussioncontrasting

confidence: 61%

Section: Discussionmentioning

confidence: 99%

Interaction of Pulses of Different Duration with Chemically Prepared Silver Nanoparticles: Analysis of Optical Nonlinearities

Zhang

Ganeev

Konda

et al. 2019

Journal of Nanomaterials

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“…This results in the decrease in the transmittance as the sample further moves toward the focus indicating the combined ramification of SA and TPA processes. Recently, several groups have measured the NLO properties of the Ag NPs with various laser pulse widths [26,48,49]. Particularly, the comparison of the application of 200 ps and 60 fs pulses, which clearly depict the effect of long pulses on the NLO properties of NPs, has been reported in [48].…”

Section: Resultsmentioning

confidence: 99%

“…These processes depend not only on the intensity of the incident photon but also on the frequency of the incident photon which plays an important role in their NLO properties depending on the resonant or nonresonant transitions. There are few reports on the competitive behavior of SA and RSA together due to the associated energy level of metal NPs, which provide the possibility to be investigated with the variation of the size of NPs [8,26].…”

Section: Introductionmentioning

confidence: 99%

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

Maurya

Rout

Ganeev

et al. 2019

Journal of Nanomaterials

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Saturable absorption and reverse saturable absorption play an important role in the studies of the nonlinear optical properties of nanoparticles at resonant excitation. With this viewpoint, nonlinear absorption processes of chemically prepared silver nanoparticles in deionized water were studied using femtosecond laser pulses at 400 nm. Our nonlinear absorption study shows that there is competition between saturable absorption and two-photon absorption in prepared Ag NPs which depends on the size of the nanoparticles. We have also studied the ultrafast dynamics associated with nanoparticles which also results in the direct correlation between the ultrafast timescale and the size of the nanoparticle. The excitation of Ag NPs at 400 nm has shown the manifestation of damped oscillation which is attributed to the radial breathing mode oscillation due to acoustic vibration.

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“…The beam diameter on the ablating surface was 0.3 mm. Details of the experimental setup are given elsewhere [53,54,55].…”

Section: Methodsmentioning

confidence: 99%

Pulse Duration and Wavelength Effects of Laser Ablation on the Oxidation, Hydrolysis, and Aging of Aluminum Nanoparticles in Water

et al. 2019

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We analyzed the formation of the aluminum (Al) nanoparticles (NPs) with triangular shape obtained by ablating Al bulk in liquid using pulses with different durations (5 ns, 200 ps, and 30 fs) and wavelengths (355 nm, 800 nm, and 1064 nm). We report three stages of synthesis and aging of Al NPs: Formation, transformation, and stable stage. The NPs prepared by different pulses are almost identical at the initial stage. The effects of duration and wavelength of the ablation pulses on the aging of NPs are revealed. Pulse duration is determined to be essential for morphological transformation of NPs, while pulse wavelength strongly influences particle sizes. NPs produced by ultra-short pulses have smaller sizes and narrow size distribution. We demonstrate that oxidation and hydrolysis of Al in water are the results of ablation for all pulse durations and wavelengths, which also strongly modify the preferable reaction path of NPs in water, thus affecting the composition and morphology of triangle NPs. The results of modeling of the NPs generation in water due to a 50 ps laser pulse interacting with a thick Al target are presented. Water-based effects in the formation of NPs, their evolution, and solidification are considered from the mechanical and thermophysical points of view. The detailed analysis of the modeling results allowed for determination of the main mechanism responsible for the ablation process followed by the NPs formation.

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Strong third-order optical nonlinearities of Ag nanoparticles synthesized by laser ablation of bulk silver in water and air

Cited by 24 publications

References 43 publications

Interaction of Pulses of Different Duration with Chemically Prepared Silver Nanoparticles: Analysis of Optical Nonlinearities

Interaction of Pulses of Different Duration with Chemically Prepared Silver Nanoparticles: Analysis of Optical Nonlinearities

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

Pulse Duration and Wavelength Effects of Laser Ablation on the Oxidation, Hydrolysis, and Aging of Aluminum Nanoparticles in Water

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