Anomalous thermal diffusion in two-layer system: The temperature profile and photoacoustic signal for rear light incidence

A Somer, MN Popovic, GK da Cruz, A Novatski… - International Journal of …, 2022 - Elsevier
We analyze the influence of the generalizations of hyperbolic (Cattaneo) heat equations
(GCE) on temperature profile and photoacoustic signal for the two-layer samples. The GCE …

Photoacoustic signal with two heating sources: theoretical predictions and experimental results for the open photoacoustic cell technique

A Somer, A Gonçalves, TV Moreno… - Measurement …, 2020 - iopscience.iop.org
A theoretical model for the photoacoustic signal with an analytical solution for the open
photoacoustic cell technique is performed. The thermal diffusion (TD) and thermoelastic …

[HTML][HTML] Photoacoustic Characterization of TiO2 Thin-Films Deposited on Silicon Substrate Using Neural Networks

KL Djordjević, DK Markushev, MN Popović, MV Nesić… - Materials, 2023 - mdpi.com
In this paper, the possibility of determining the thermal, elastic and geometric characteristics
of a thin TiO2 film deposited on a silicon substrate, with a thickness of 30 μm, in the …

Theoretical predictions for photoacoustic signal: Fractionary thermal diffusion with modulated light absorption source

A Somer, A Novatski, EK Lenzi - The European Physical Journal Plus, 2019 - Springer
We develop a theoretical framework, in the context of the anomalous thermal diffusion, for
the photoacoustic signal. We obtain analytical predictions for the open photoacoustic cell …

[HTML][HTML] Photothermal response for the thermoelastic bending effect considering dissipating effects by means of fractional dual-phase-lag theory

A Somer, A Novatski, MK Lenzi, LR da Silva… - Fractal and …, 2023 - mdpi.com
We analyze an extension of the dual-phase lag model of thermal diffusion theory to
accurately predict the contribution of thermoelastic bending (TE) to the Photoacoustic (PA) …

[HTML][HTML] Adapalene-loaded poly(ε-caprolactone) microparticles: Physicochemical characterization and in vitro penetration by photoacoustic spectroscopy

JM Nadal, G dos Anjos Camargo, A Novatski… - PLoS …, 2019 - journals.plos.org
Adapalene (ADAP) is an important drug widely used in the topical treatment of acne. It is a
third-generation retinoid and provides keratolytic, anti-inflammatory, and antiseborrhoic …

Fractional GCEs behaviors merged: Prediction to the photoacoustic signal obtained with subdiffusive and superdiffusive operators

A Somer, A Novatski, F Carlos Serbena… - Journal of Applied …, 2020 - pubs.aip.org
In this work, we developed a theoretical model with anomalous thermal diffusion by
considering the modified Generalized Cattaneo Equations (GCEs) of Compte and Metzler …

Interplay between super and subdiffusive behaviors in photothermal phenomena

A Somer, A Novatski, FC Serbena, EK Lenzi - International Journal of …, 2021 - Elsevier
We analyze an extension for the Fourier law to describe the heat propagation in non-
homogeneous solids by taking into accounts simultaneously different diffusion regimes such …

Thermal fractional diffusion: experimental evidence from the discrepancies in the amplitude and phase in photothermal technique

A Somer, A Novatski, GK da Cruz, CBK da Cruz… - Nonlinear …, 2023 - Springer
Obtaining thermal parameters based in the analysis only on the amplitude or phase of the
photoacoustic (PA) signal from photothermal measurements is useful and valid once …

The influence of the surface micro-structure change on the stainless steel effective thermal diffusivity

A Somer, A Novatski, CBK Cruz, FC Serbena… - International Journal of …, 2022 - Springer
Alternative techniques have been proposed for material thermal characterization. One of
them is the Open Photoacoustic (OPC) technique, which uses a pressure variation induced …