Optical limiting in single-walled carbon nanotube suspensions

Mishra, S. R.; Rawat, H. S.; Mehendale, S. C.; Rustagi, K. C.; Sood, Anil K.; Bandyopadhyay, Ranjini; Govindaraj, A.; Rao, C. N. R.

doi:10.1016/s0009-2614(99)01304-4

Cited by 164 publications

(96 citation statements)

References 17 publications

(19 reference statements)

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“…Longer pulse duration and lower surface tension of solvent have positive influence on the size of scatters. [34,41] Similar to other nonlinear scattering-induced optical limiting materials, such as carbon nanotubes, [34,42] the graphene dispersions have a strong solvent effect on its optical limiting response. As shown in Figure 3, at the same level of linear transmission, the optical limiting performance of DMA dispersions outperforms those of NMP and GBL dispersions at both 532 and 1064 nm, while the NMP dispersions exhibit a slightly higher optical limiting effect than the GBL dispersions.…”

Section: à2mentioning

confidence: 99%

Broadband Nonlinear Optical Response of Graphene Dispersions

et al. 2009

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A series of unoxidized and defect‐free graphene dispersions with large populations of single and multilayer graphenes is prepared by employing high‐yield exfoliation of graphene in the liquid phase. The graphene dispersions exhibit broadband optical limiting at 532 and 1064 nm. Nonlinear scattering, originated from the thermally induced solvent bubbles and microplasmas, is responsible for this nonlinear behavior.

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Section: à2mentioning

confidence: 99%

Broadband Nonlinear Optical Response of Graphene Dispersions

et al. 2009

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“…During nanosecond pulse irradiation, the absorption of laser light induces a very high rise in the temperature of the NPs, which leads to the formation of scattering centers [25,26,37]. In these articles, the observed nonlinear scattering has been explained by the formation of two types of scattering centers related to the photo-excitation of the nanoparticle suspension.…”

Section: Original Papermentioning

confidence: 99%

“…For the characterization of the obtained semiconductor nanocrystals, Ultraviolet-visible (UV-Vis) absorption spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM) are used. During nanosecond pulse irradiation, the silver sulfide semiconductor nanocrystals enhance the absorption of laser light via the two-photon absorption process and induce a very high rise in the temperature of the nanocrystals, which leads to the formation of scattering centers [25,26]. This results in strong optical limiting behavior toward the 532-nm wavelength.…”

mentioning

confidence: 99%

Optical limiting response of Ag₂S nanoparticles synthesized by laser ablation of silver target in DMSO

Aleali

Sarkhosh

Karimzadeh

et al. 2011

Physica Status Solidi (b)

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Silver sulfide nanoparticles (Ag 2 S NPs) were synthesized by nanosecond pulsed laser ablation of a silver plate in dimethyl sulfoxide. Ultraviolet-visible absorption spectrometry, X-ray diffraction, and transmission electron microscopy were used to characterize the obtained nanocrystal samples. The mechanisms for optical limiting performance of an Ag 2 S NP colloid were investigated under exposure to nanosecond pulsed laser irradiation at 532 nm. The observed aperture dependence of the Ag 2 S NP limiting performance indicates that the nonlinear scattering plays an important role in the limiting action of the sample. The Ag 2 S NPs may enhance the absorption of laser light by the two-photon absorption process and induce a very high rise in the temperature of the sample, which leads to the formation of scattering centers. [17]. This synthetic flexibility of physical and chemical properties is one of the reasons why nanoparticle suspensions are good candidates for nonlinear optical applications like photonic switches, optical limiters, etc. In particular, optical limiters have received significant attention during recent decades due to the ability to protect human eyes and sensors from intense laser pulses. An ideal optical limiter exhibits high transmission for low-intensity light, while it shows low transmission for intense light. This phenomenon can be caused by various nonlinear light-matter interactions, especially nonlinear absorption, nonlinear refraction, and nonlinear scattering. Many organic materials such as phthalocyanines [18], fullerene families [19], and carbon-black suspensions [20] were reported as good limiters due to their excellent nonlinear optical properties.

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“…Optical limiting behavior of visible nanosecond laser pulses in the SWNT suspensions occurs mainly due to nonlinear scattering. [216] In Figure 22, the variation of output fluence of SWNTs as a function input fluence in various solvents is shown. Nanotube composites with conducting polymers seem to possess novel electrical and optical properties.…”

Section: Other Properties Of Carbon Nanotubesmentioning

confidence: 99%