Combining second harmonic generation and multiphoton excited photo-luminescence to investigate TiO<sub>2</sub> nanoparticle powders

Jonin, Christian; Brevet, Pierre‐François; Salmon, Estelle; Awada, Chawki; Kanoun, Mohammed Benali; Ahmed, Faheem

doi:10.1039/d3cp02113k

Phys. Chem. Chem. Phys.

2023

DOI: 10.1039/d3cp02113k

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Combining second harmonic generation and multiphoton excited photo-luminescence to investigate TiO₂ nanoparticle powders

Christian Jonin

Pierre‐François Brevet

Estelle Salmon

et al.

Abstract: Combined Second Harmonic Generation (SHG) and Multiphoton Excited Photoluminescence (MEPL) intensity depth profiles are recorded for an anatase titanium dioxide powder consisting of 22 nm diameter nanoparticles using ultrafast femtosecond...

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Hyper Rayleigh scattering from DNA nucleotides in aqueous solution

Jonin,

Dereniowski,

Salmon

et al. 2023

The Journal of Chemical Physics

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Nucleotides are organic compounds consisting of a phosphate group, a nitrogenous base, namely adenine (A), thymine (T), cytosine (C), or guanine (G), and a sugar, here deoxyribose. The magnitude of the first hyperpolarizability β of these four DNA nucleotides was determined in aqueous solution with the nonlinear optical technique of hyper rayleigh scattering under non resonant conditions at a fundamental wavelength of 800 nm. The smallest value is found to be 1.67 ± 0.15 × 10−30 esu for thymidine-5′-monophosphate and the highest is 1.76 ± 0.16 × 10−30 esu for 2′-guanosine-5′-monophosphate. Polarization resolved studies were also performed to question the symmetry of the first hyperpolarizability tensor and access the ratio of some elements of the first hyperpolarizability tensor. These experimental results were then compared to the theoretical values of these first hyperpolarizabilities obtained with the density functional theory at the level of the PCM-B3LYP/6-31G+(d) basis and taking into account the solvent.

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Hyper Rayleigh scattering from DNA nucleotides in aqueous solution

Jonin,

Dereniowski,

Salmon

et al. 2023

The Journal of Chemical Physics

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Combining second harmonic generation and multiphoton excited photo-luminescence to investigate TiO₂ nanoparticle powders

Abstract: Combined Second Harmonic Generation (SHG) and Multiphoton Excited Photoluminescence (MEPL) intensity depth profiles are recorded for an anatase titanium dioxide powder consisting of 22 nm diameter nanoparticles using ultrafast femtosecond...

Cited by 1 publication

References 21 publications

Hyper Rayleigh scattering from DNA nucleotides in aqueous solution

Hyper Rayleigh scattering from DNA nucleotides in aqueous solution

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Combining second harmonic generation and multiphoton excited photo-luminescence to investigate TiO2 nanoparticle powders

Abstract: Combined Second Harmonic Generation (SHG) and Multiphoton Excited Photoluminescence (MEPL) intensity depth profiles are recorded for an anatase titanium dioxide powder consisting of 22 nm diameter nanoparticles using ultrafast femtosecond...

Cited by 1 publication

References 21 publications

Hyper Rayleigh scattering from DNA nucleotides in aqueous solution

Hyper Rayleigh scattering from DNA nucleotides in aqueous solution

Contact Info

Product

Resources

About

Combining second harmonic generation and multiphoton excited photo-luminescence to investigate TiO₂ nanoparticle powders