Third-order nonlinear optical responses in derivatives of phenylhydrazone by Z-scan and optical limiting studies-influence of noble metal nanoparticles

Sudheesh, P.; Narendran, Nadarajah; Chandrasekharan, K.

doi:10.1016/j.optmat.2013.09.014

Cited by 41 publications

(15 citation statements)

References 39 publications

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“…There are many mechanisms, such as two photon absorption, free carrier absorption, reverse saturable absorption, excited state absorption, optically induced heating, and nonlinear scattering, that are accountable for the optical limiting action of metal NPs [7,14,26]. The Ag NPs show an optical limiting threshold value of 5.2 J/cm 2 , which is comparable to the values reported by many studies [26][27][28][29].…”

Section: Resultssupporting

confidence: 55%

Silver Nanoparticles under Nanosecond Pulsed Laser Excitation as an Intensity Sensitive Saturable Absorption to Reverse Saturable Absorption Switching Material

et al. 2021

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Optical nonlinearity involved switching draws an important consideration in nonlinear optical studies. Based on that, we explored nonlinear absorption processes in silver nanoparticles synthesized by liquid phase laser ablation technique employing a second harmonic wavelength (532 nm) of Q switched Nd:YAG laser pulses with 7 ns pulse width and 10 Hz repetition rates. The typical surface plasmon resonance induced absorption (~418 nm) confirmed the formation of Ag NPs. The Z-scan technique was used to study the nonlinear optical processes, employing the same laser system used for ablation. Our study reveals that there is an occurrence of a saturable to reverse saturable absorption switching activity in the Ag nanoparticles, which is strongly on-axis input intensity dependent as well. The closed aperture Z-scan analysis revealed the self-defocusing nature of the sample.

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Section: Resultssupporting

confidence: 55%

Silver Nanoparticles under Nanosecond Pulsed Laser Excitation as an Intensity Sensitive Saturable Absorption to Reverse Saturable Absorption Switching Material

et al. 2021

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“…It is known that the materials with a high concentration of metal nanoparticles exhibit large nonlinear optical effects [19]. Thus, these materials with large third-order optical nonlinearity and fast response time are essential for future optical device applications in optical computing, real time holography, optical correlators and phase conjugators [20,21]. In literature, a number of techniques are reported for studying nonlinear behaviour of the nanomaterials such as: degenerate four-wave mixing (DFWM), nonlinear interferometry, second harmonic generation and third harmonic generation (SHG and THG) [22].…”

Section: Introductionmentioning

confidence: 99%

Third-order nonlinear optical response of Ag–CdSe/PVA hybrid nanocomposite

Tripathi

Kaur

et al. 2015

Appl. Phys. A

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Hybrid nanocomposites of II-VI semiconductor nanoparticles are gaining great interest in nonlinear optoelectronic devices. Present work includes the characterization of CdSe polymer nanocomposite prepared by chemical in situ technique. From X-ray diffraction, the hexagonal wurtzite structure of nanoparticles has been confirmed with spherical morphology from transmission electron microscopy. Ag-CdSe hybrid polymer nanocomposite has been prepared chemically at different Ag concentrations. The presence of Ag in hybrid nanocomposite has been confirmed with energy-dispersive X-ray spectroscopy. The effect of varying Ag concentration on the linear and nonlinear optical properties of the nanocomposites has been studied. In linear optical parameters, the linear absorption coefficient, refractive index, extinction coefficient and optical conductivity have been calculated. The third-order nonlinear optical properties have been observed with open-and closed-aperture Z-scan technique. The large nonlinear refractive index *10 -5 cm 2 /W with self-focusing behaviour is due to the combined effect of quantum confinement and thermo-optical effects. The enhanced nonlinearity with increasing Ag content is due to the surface plasmon resonance, which enhances the local electric field near the nanoparticle surface. Thus, Ag-CdSe hybrid polymer nanocomposite has favourable nonlinear optical properties for various optoelectronic applications.

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“…This could be the most important mechanism of the nonlinearity in the closed aperture (CA) Z-scan experiments. The current n 2 values are generally of one to two orders of magnitude than the value reported for the ferrocene-porphyrin derivatives including phenylhydrazone derivatives [34] and, 10 4 times larger than that of the reported values for photorefractive crystals, liquid crystals, and Benzo[a]phenoxazinium salts [35][36][37]. As illustrated in Table 2, there is a global increasing trend for the values of n 2 as the concentration increases.…”

Section: Nonlinear Optical Properties Characterizationmentioning

confidence: 70%

Nonlinear optical properties of natural laccaic acid dye studied using Z-scan technique

et al. 2015

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Third-order nonlinear optical responses in derivatives of phenylhydrazone by Z-scan and optical limiting studies-influence of noble metal nanoparticles

Cited by 41 publications

References 39 publications

Silver Nanoparticles under Nanosecond Pulsed Laser Excitation as an Intensity Sensitive Saturable Absorption to Reverse Saturable Absorption Switching Material

Silver Nanoparticles under Nanosecond Pulsed Laser Excitation as an Intensity Sensitive Saturable Absorption to Reverse Saturable Absorption Switching Material

Third-order nonlinear optical response of Ag–CdSe/PVA hybrid nanocomposite

Nonlinear optical properties of natural laccaic acid dye studied using Z-scan technique

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