Polarization-selective enhancement of Nd3+ photoluminescence assisted by linear chains of silver nanoparticles

Yraola, Eduardo; Sánchez‐García, Laura; Tserkezis, Christos; Molina, P.; Ramı́rez, M. O.; Aizpurua, Javier; Bausá, Luisa E.

doi:10.1016/j.jlumin.2014.12.053

Cited by 13 publications

(19 citation statements)

References 17 publications

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“…Additionally, the generated SFD nonlinear radiation oscillates parallel to the plasmonic chains, as the NIR laser oscillation. This feature is consistent with the polarization dependence of the longitudinal plasmonic mode supported by the linear chain 30.…”

supporting

confidence: 88%

“…The lowest threshold value corresponds to the pump beam polarized parallel to the plasmonic linear chain, as expected from the strong polarization character of the longitudinal LSP radiative mode supported by the Ag NPs chain. 30 Figure 3b shows the comparison of the subwavelength laser performance for each one of the two configurations depicted in Figure 1c Once efficient lasing action has been demonstrated from the hybrid Ag NPs chains/Ycut Nd 3+ :LNB system, multiline operation was obtained through different parametric sumfrequency mixing processes, which involve the plasmon-mediated CW laser radiation. Selffrequency conversion processes in bulk configuration has shown to be a valuable approach to generate coherent radiation in different spectral regions.…”

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confidence: 99%

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Multiline Operation from a Single Plasmon-Assisted Laser

et al. 2017

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Esta es la versión de autor del artículo publicado en: This is an author produced version of a paper published in:El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription ABSTRACT -The demonstration of plasmon-assisted lasing by associating optical gain media with plasmonic nanostructures has led to a new generation of nanophotonic devices with unprecedented performances. However, despite the variety of designs demonstrated so far, the operation of these systems is in most cases limited to a single output wavelength, and some reports on multiline emission refer to mixing single nanolasers with the subsequent limitation in compactness. Here, we show multiline operation from a single plasmon-assisted nonlinear solid-state laser on which a linear chain of Ag nanoparticles is deposited. The system provides lasing at 1.08 µm, which is self-converted to the visible range through different parametric frequency-mixing processes generated at metal-dielectric interfaces. Near infrared and simultaneously green and tunable blue radiation with a sub-wavelength confinement in the direction perpendicular to the nanoparticle chain, are obtained at room temperature in CW regime. The results demonstrate the possibility of multifunctional operation from a single plasmon-assisted laser, and offer new avenues for the development of highly integrable sources of coherent radiation.

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confidence: 99%

Multiline Operation from a Single Plasmon-Assisted Laser

et al. 2017

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“…As observed, the NPs size range from around 35 to 75 nm with a maximum centered at around 50 nm. As previously reported for linear chains of NPs formed on the same substrate, mixing spherical interacting NPs with different sizes results into plasmonic modes with resonances located at intermediate wavelengths values [29].Therefore, the NPs necklaces can be well modeled by spheres with a size corresponding to the average size of the distribution, 50 nm in our case.…”

Section: Fabrication Of Hexagonal Necklaces Of Ag Nps On Linbo3 Crystalsupporting

confidence: 74%

Field enhancement and spectral features of hexagonal necklaces of silver nanoparticles for enhanced nonlinear optical processes

Gómez‐Tornero¹,

Tserkezis²,

Moreno³

et al. 2018

Opt. Express

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The nonlinear properties of hybrid metallic-dielectric systems are attracting great interest due to their potential for the enhancement of frequency conversion processes at nanoscale dimensions. In this work, we theoretically and experimentally address the correlation between the near field distribution of hexagonal plasmonic necklaces of silver nanoparticles formed on the surface of a LiNbO crystal and the second harmonic generation (SHG) produced by this nonlinear crystal in the vicinities of the necklaces. The spectral response of the hexagonal necklaces does not depend on the polarization direction and is characterized by two main modes, the absorptive high-energy mode located in the UV spectral region and the lower energy mode, which is strongly radiant and extends from the visible to the near infrared region. We show that the spatial distribution of the enhanced SHG is consistent with the local field related to the low energy plasmon mode, which spectrally overlaps the fundamental beam. The results are in agreement with the low absorption losses of this mode and the two-photon character of the nonlinear process and provide deeper insight in the connection between the linear and nonlinear optical properties of the hybrid plasmonic-ferroelectric system. The study also highlights the potential of hexagonal necklaces as useful plasmonic platforms for enhanced optical processes at the nanoscale.

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“…Insets show the experimental dark field images obtained for each polarization configuration. Reproduced with permission . Copyright 2016, Elsevier B.V. c) Calculation of the electric field amplitude for an incident plane wave at λ = 800 nm, polarized perpendicularly (left panel) or parallel (right panel) to the chain axis.…”

Section: Optical Response Of 1d and 2d Metallic Arrangements On Ferromentioning

confidence: 99%

“…In particular, when the interspace between metallic NPs is decreased, the maximum of the extinction spectrum shifts to lower energies due to the increase in the interparticle capacitive coupling. With respect to the size dispersion, mixing NPs of slightly different size results into plasmonic modes located at intermediate wavelengths, allowing the real system to be modeled by considering a linear chain formed by NPs of size equal to the average size of the particles forming the chain …”

Section: Optical Response Of 1d and 2d Metallic Arrangements On Ferromentioning

confidence: 99%

Hybrid Plasmonic–Ferroelectric Architectures for Lasing and SHG Processes at the Nanoscale

et al. 2019

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develop novel nanophotonic devices with innovative functions for light generation and control. Indeed, the development of coherent light sources with sub-wavelength confined modes is a flourishing area that can yield a revolution in several fields, including physics, chemistry, materials science, biology, and/or imaging and information technologies. [13][14][15][16] In this review, we discuss the progress on the fabrication and performance features of light sources operating at the nanoscale, which can be attained by the interaction of localized surface plasmons (LSP) with optical gain dielectric media. The optical gain is provided by functional ferroelectric platforms (either by stimulated emission or by nonlinear (NL) frequency conversion processes), which in turn are used as templates for the deposition of metallic arrangements. Two types of sources with sub-diffraction spatial confinement are presented: plasmon-assisted solid-state nanolasers, based on the interaction between metallic nanostructures and optically active rare earth (RE 3+ ) doped ferroelectric crystals, and NL radiation sources based on quadratic frequency mixing mechanisms, that are enhanced by means of LSP resonances.Ferroelectrics are nowadays strong actors in the area of light generation and control. In the context of this report, the relevance of employing ferroelectric crystals as optical functional platforms is multiple. On one hand, the presence of a reversible spontaneous polarization in the ferroelectric phase allows to engineer ferroelectric domain patterns with different photonic functionalities. [17][18][19][20] On the other hand, the noncentrosymmetric crystal structure of ferroelectrics enables the generation of quadratic frequency conversion processes, which makes these systems useful as frequency doublers and optical parametric oscillators. [21,22] Further, the possibility of some ferroelectric crystals to host luminescent trivalent RE 3+ ions, from which laser action can be achieved, is an additional advantage exploited in the context of this work. [23] In fact, some of the materials that will be the subject of discussion in this report constitute true solid-state lasers due to the incorporation of optically active ions such as Nd 3+ or Yb 3+ during the crystal growth. Finally, the presence of surface charges on ferroelectrics is a key factor that allows ferroelectric surfaces to act as templates to assemble different type of nanostructures Coherent light sources providing sub-wavelength confined modes are in ever more demand to face new challenges in a variety of disciplines. Scalability and cost-effective production of these systems are also highly desired. The use of ferroelectrics in functional optical platforms, on which plasmonic arrangements can be formed, is revealed as a simple and powerful method to develop coherent light sources with improved and novel functionalities at the nanoscale. Two types of sources with subdiffraction spatial confinement and improved performances are presented: i) plasmon-assisted solid-sta...

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Polarization-selective enhancement of Nd3+ photoluminescence assisted by linear chains of silver nanoparticles

Cited by 13 publications

References 17 publications

Multiline Operation from a Single Plasmon-Assisted Laser

Multiline Operation from a Single Plasmon-Assisted Laser

Field enhancement and spectral features of hexagonal necklaces of silver nanoparticles for enhanced nonlinear optical processes

Hybrid Plasmonic–Ferroelectric Architectures for Lasing and SHG Processes at the Nanoscale

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