Field enhancement of multiphoton induced luminescence processes in ZnO nanorods

Hyyti, Janne; Perestjuk, Marko; Mahler, F; Grünwald, R.; Güell, Frank; Gray, Ciarán; McGlynn, Enda; Steinmeyer, Günter

doi:10.1088/1361-6463/aaaabe

Cited by 5 publications

(8 citation statements)

References 57 publications

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“…To confirm the nonlinear nature of the excitonic component of the spectrum, we performed interferometric frequency-resolved optical gating (iFROG) scans at different excitation power levels. In an interferometric intensity autocorrelation measurement, the ratio, r , of the intensity at zero delay to the baseline intensity at infinite delay is related to the order m of the multiphoton process as r = 2 2 m –1 .…”

mentioning

confidence: 99%

Coherent Multiphoton Control of Gallium Phosphide Nanodisk Resonances

Remesh

Grinblat

et al. 2019

ACS Photonics

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High-index dielectric nanoantennas have recently emerged as promising alternatives to plasmonic nanoantennas for concentrating and manipulating light at the nanoscale. For example, Gallium Phosphide (GaP) nanoantennas display extremely low losses in the visible range, high nonlinearities, support both electric and magnetic resonances, and are nicely compatible with CMOS fabrication technology. Especially, the low losses and large nonlinearities are promising for ultrafast optical switching and truly all-optical control of GaP nanodevices. Here first we use two-and three-photon excitation of GaP nanodisks to probe the size-dependent resonance enhancement of second harmonic and bandgap emission. Next, we show, by spectral phase control of broadband pulsed excitation, that GaP nanoantennas outperform their metal counterparts in supporting nonlinear optical coherences.

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confidence: 99%

Coherent Multiphoton Control of Gallium Phosphide Nanodisk Resonances

Remesh

Grinblat

et al. 2019

ACS Photonics

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“…This possibility is not treated in this work, due to the indirect DBR-PL measurement, so we could not separate the contribution from the TPA process from the SHG as done by interferometric measurement. 24 On the other hand, it could have been an SHG excited as a usual semiconductor diode laser; 25 however, we did not observe any DBR PL when we excited the cavity with off-resonant pumping up to 400 mW. Additionally, the DBR PL was not observed when the cavity was detuned out of the polariton excitation range.…”

Section: ■ Discussionmentioning

confidence: 67%

“…It could have been due to two photon absorption (TPA) process followed by carrier relaxation to the Al 0.2 Ga 0.8 As energy bottom band before recombination. This possibility is not treated in this work, due to the indirect DBR-PL measurement, so we could not separate the contribution from the TPA process from the SHG as done by interferometric measurement . On the other hand, it could have been an SHG excited as a usual semiconductor diode laser; however, we did not observe any DBR PL when we excited the cavity with off-resonant pumping up to 400 mW.…”

Section: Discussionmentioning

confidence: 86%

Nonlinear Optical Effects with Polariton Lasers in a GaAs Microcavity

Pimenta¹,

Faria²,

González³

et al. 2018

J. Phys. Chem. C

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We report the nonlinear optical properties of polaritons in a single quantum well GaAs microcavity. Single and double resonance cavities have been used to enhance the nonlinear effect of a nonlinear medium in high-Q quality factor cavities due to the cavity field amplification. On the other hand, such a cavity can generate polaritons, which condense (Bose− Einstein condensation) for determined conditions, such as cavity detuning and polariton density. Here, we present experimental observations of the second harmonic generation from polaritons in a GaAs microcavity, which exhibit a 2 order higher efficiency than those from the usual method. Furthermore, the efficiency is particularly high when the polariton is a photon-like particle and in a condensed state.

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“…Multiphoton absorption and subsequent photoluminescence are an example of a nonparametric pathway. The insights from FT-NLO can reveal coupling in multicomponent structures, elucidate the effects of molecular dopants, and unravel the contributions of multiple competing nonlinear optical pathways. ,,, …”

Section: Nature Of the Nonlinear Signalmentioning

confidence: 99%

Improving Spectral, Spatial, and Mechanistic Resolution Using Fourier Transform Nonlinear Optics: A Tutorial Review

Steves

Knappenberger

2022

ACS Phys. Chem Au

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Fourier transform nonlinear optics (FT-NLO) is a powerful experimental physical chemistry tool that provides insightful spectroscopic and imaging data. FT-NLO has revealed key steps in both intramolecular and intermolecular energy flow. Using phase-stabilized pulse sequences, FT-NLO is employed to resolve coherence dynamics in molecules and nanoparticle colloids. Recent advances in time-domain NLO interferometry using collinear beam geometries makes determination of molecular and material linear and nonlinear excitation spectra, homogeneous line width, and nonlinear excitation pathways straightforward. When combined with optical microscopy, rapid acquisition of hyperspectral images with the information content of FT-NLO spectroscopy is possible. With FT-NLO microscopy, molecules and nanoparticles colocated within the optical diffraction limit can be distinguished based on their excitation spectra. The suitability of certain nonlinear signals for statistical localization present exciting prospects for using FT-NLO to visualize energy flow on chemically relevant length scales. In this tutorial review, descriptions of FT-NLO experimental implementations are provided along with theoretical formalisms for obtaining spectral information from time-domain data. Select case studies that illustrate the use of FT-NLO are presented. Finally, strategies for extending superresolution imaging capabilities based on polarization-selective spectroscopy are offered.

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Field enhancement of multiphoton induced luminescence processes in ZnO nanorods

Cited by 5 publications

References 57 publications

Coherent Multiphoton Control of Gallium Phosphide Nanodisk Resonances

Coherent Multiphoton Control of Gallium Phosphide Nanodisk Resonances

Nonlinear Optical Effects with Polariton Lasers in a GaAs Microcavity

Improving Spectral, Spatial, and Mechanistic Resolution Using Fourier Transform Nonlinear Optics: A Tutorial Review

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