Wavelength-varying third-order nonlinear optical response of Ag nanoparticles-Si quantum dots integrated plasmonic system

Tamayo-Rivera, L.; Fernández-Hernández, R. C.; Rodrı́guez-Fernández, L.; Rangel-Rojo, R.; Oliver, A.; Reyes‐Esqueda, Jorge‐Alejandro

doi:10.1364/ome.1.000980

Cited by 8 publications

(6 citation statements)

References 19 publications

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“…Comparatively, it has been previously indicated that ionimplanted NCs containing both Ag-NPs and Si-QDs result in picosecond third-order optical nonlinearities that are enhanced compared to that of samples containing only either Ag-NPS or Si-QDs [18]. Moreover, for a particular wavelength of excitation, the ultrafast nonlinear optical absorption in NCs conformed by Ag-NPs and Si-QDs can be tailored by a double-ion implantation route [19].…”

Section: Introductionmentioning

confidence: 99%

Collective optical Kerr effect exhibited by an integrated configuration of silicon quantum dots and gold nanoparticles embedded in ion-implanted silica

et al. 2015

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The study of the third-order optical nonlinear response exhibited by a composite containing gold nanoparticles and silicon quantum dots nucleated by ion implantation in a high-purity silica matrix is presented. The nanocomposites were explored as an integrated configuration containing two different ion-implanted distributions. The time-resolved optical Kerr gate and z-scan techniques were conducted using 80 fs pulses at a 825 nm wavelength; while the nanosecond response was investigated by a vectorial two-wave mixing method at 532 nm with 1 ns pulses. An ultrafast purely electronic nonlinearity was associated to the optical Kerr effect for the femtosecond experiments, while a thermal effect was identified as the main mechanism responsible for the nonlinear optical refraction induced by nanosecond pulses. Comparative experimental tests for examining the contribution of the Au and Si distributions to the total third-order optical response were carried out. We consider that the additional defects generated by consecutive ion irradiations in the preparation of ion-implanted samples do not notably modify the off-resonance electronic optical nonlinearities; but they do result in an important change for near-resonant nanosecond third-order optical phenomena exhibited by the closely spaced nanoparticle distributions.

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Section: Introductionmentioning

confidence: 99%

Collective optical Kerr effect exhibited by an integrated configuration of silicon quantum dots and gold nanoparticles embedded in ion-implanted silica

et al. 2015

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“…Therefore, in determining the NLR responses with the presence of a NLA response, the usual protocol proposed by Sheik-Bahae et al was used; we subtracted the NLA contribution on the CA transmittance by a simple division of curves CA/OA [35]. In the same reference it is stated that such a procedure can be done only if the following conditions hold: 1) 0 (0, 0) 1 q ≤ and 2) 2 4 1 n βλ π ≤ . Again, it has been verified that these requirements were satisfied in all measurements done.…”

Section: Resultsmentioning

confidence: 99%

“…Z-scan technique at 532 nm with variable polarization has been used to study the third order NLO properties of these samples which were scanned along the optical axis (z direction) and focused by a lens with a focal length of 500 mm. A detailed description of the Z-scan technique can be found elsewhere [4,35]. The reference and transmitted beams (OA and CA) were measured with Thorlabs DET 10A fast photodiodes.…”

Section: Optical Measurementsmentioning

confidence: 99%

“…Such effects arise from coherent oscillations of conduction electrons near the surface of noble-metal structures, giving place to what is better known as surface plasmon resonance (SPR) [1][2][3]. In particular, it has been found that metallic nanoparticles (NPs) inside a dielectric matrix have the capability of quantum confinement of electromagnetic field, where the electrons of the metal oscillate under the strength of the electric field [4]. Together, quantum confinement of light at the small NPs and collective oscillation of the electron gas, have brought, in the last few years, special interest in the preparation, characterization, and exploitation of the SPR of composite materials based on dielectric matrices containing dispersed metal NPs, such as Au, Ag and Cu.…”

Section: Introductionmentioning

confidence: 99%

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Size- and Shape-Dependent Nonlinear Optical Response of Au Nanoparticles Embedded in Sapphire

et al. 2013

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Nonlinear optical response of Au metallic nanoparticles, synthesized and embedded in sapphire by using ion implantation, as a function of their size and shape is studied. The size of the Au NPs was varied by controlling the annealing time of the gold-irradiated sapphire in a reducing atmosphere. Their shape was changed from approximately spherical to prolate by swift heavy-ion irradiation using Si 3+ , obtaining an anisotropic composite consisting in deformed NPs, all oriented in the direction of the Si beam irradiation. At 532 nm and 26 ps pulses, the isotropic system shows negative nonlinear absorption increasing with size, and positive nonlinear refraction. On the other hand, prolate nanoparticles show negative (null) absorption and null (positive) refraction for the minor (major) axis. This kind of system also shows figures of merit and relaxing times in the order of the picoseconds, appropriate for all-optical switching applications.

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“…[ 1–3 ] The enhanced nonlinear optical properties of metals are extensively explored either as metal–dielectric (MD) nanocomposites or plasmonic structures. [ 4–11 ] The inherent properties of strong resonant absorption and considerable local‐field enhancement of metals are observed due to huge optical polarization associated with the free electron oscillations. These MD composites show many interesting applications in ultrafast and nonlinear photonic domains.…”

Section: Introductionmentioning

confidence: 99%

Giant Optical Nonlinearities of Photonic Minibands in Metal–Dielectric Multilayers

Acharyya

Rao

Adnan

et al. 2020

Adv Materials Inter

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as compared to the dielectrics. [1][2][3] The enhanced nonlinear optical properties of metals are extensively explored either as metal-dielectric (MD) nanocomposites or plasmonic structures. [4][5][6][7][8][9][10][11] The inherent properties of strong resonant absorption and considerable local-field enhancement of metals are observed due to huge optical polarization associated with the free electron oscillations. These MD composites show many interesting applications in ultrafast and nonlinear photonic domains. However, accessing of optical activities from metals or metal composites in the visible region is rather difficult due to thickness restricted high optical attenuation. All dielectric 1D photonic crystals become attractive for enhanced optical field confinement, thus produce several orders of magnitude changes in both linear and nonlinear optical properties. [12,13] Unlike dielectric-dielectric wavelength ordered multilayers, MD multilayer shows strong optical response due to high refractive index contrast between the metal and dielectric layers. [14][15][16] Therefore, a transparent metal can be realized when thin metal layer is sandwiched between the wavelength-ordered dielectric layers to make 1D photonic bandgap structure. [17][18][19][20] Novelty of these MD structure is that the total amount of metal is increased to several times larger than the skin depths in net thickness and still remains transparent for optical pulse propagation. In such Bragg photonic structures, the resonant Fabry-Perrot (FP) cavity modes produce a tailor-made photonic stopband and the transmission split into several minibands on both sides of the stopband. [17,21] As a result, optical fields can easily be propagated and manipulated to much deeper of these structures than the normal skin depth restricted bulk metals in both resonant and nonresonant optical regions. [14,22] Thus, the propagation of high intense light can be hugely altered in such MD structures and can be designed for high optical nonlinearities, while retaining the photonic transmission/reflection features similar to dielectric photonic structures. [23][24][25][26][27] Such novel MD structures have many exciting applications such as optical switching, laser optical limiters for human eye and sensor protection, and transparent conducting device technology. [28,29] The nonlinear enhancement of these 1D photonic bandgap structures is generally explained in the context The giant nonlinear optical responses of photonic minibands of (Ag/SiO 2 ) 4 metal-dielectric multilayers are reported using high intense femtosecond laser pulses. Ag and SiO 2 alternative stack of layers form a series of coupled Fabry-Pérot resonators (Ag-SiO 2 -Ag) and the cavity modes are split into transmission minibands in the metal reflective spectral region. The strong saturation of two-photon absorption associated with multiphoton absorption (MPA) is observed at photonic miniband minimum (≈700 nm), whereas MPA is the strong dominant nonlinearity at peak maximum (≈725 nm). The metal-cavity indu...

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Wavelength-varying third-order nonlinear optical response of Ag nanoparticles-Si quantum dots integrated plasmonic system

Cited by 8 publications

References 19 publications

Collective optical Kerr effect exhibited by an integrated configuration of silicon quantum dots and gold nanoparticles embedded in ion-implanted silica

Collective optical Kerr effect exhibited by an integrated configuration of silicon quantum dots and gold nanoparticles embedded in ion-implanted silica

Size- and Shape-Dependent Nonlinear Optical Response of Au Nanoparticles Embedded in Sapphire

Giant Optical Nonlinearities of Photonic Minibands in Metal–Dielectric Multilayers

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