Todorovic, D. M.

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  • Todorovic, D. M. (5)
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Author's Bibliography

Effect of the absorption coefficient of aluminium plates on their thermoelastic bending in photoacoustic experiments

Markushev, Dragan D.; Ordonez-Miranda, J.; Rabasović, Mihailo D.; Galović, Slobodanka; Todorovic, D. M.; Bialkowski, S. E.

(2015)

TY  - JOUR
AU  - Markushev, Dragan D.
AU  - Ordonez-Miranda, J.
AU  - Rabasović, Mihailo D.
AU  - Galović, Slobodanka
AU  - Todorovic, D. M.
AU  - Bialkowski, S. E.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/645
AB  - The open-cell photoacoustic signal measured in the transmission configuration for aluminum thin plates with thicknesses of 280 mu m, 197 mu m, and 112 mu m is experimentally and theoretically analyzed, in the 20 Hz-7 kHz modulation frequency range. It is shown that the observed differences between the predictions of the standard thermoelastic model and the experiment data of both the amplitude and phase of the photoacoustic signal can be overcome by considering the aluminum samples coated with a thin layer of black paint as volume-absorber materials. This new approach provides a quite good agreement with the obtained experimental data, in the whole frequency range, and yields an effective absorption coefficient of (16 +/- 2) mm(-1), for a 280 mu m-thick sample. The introduction of the finite absorption coefficient led to the correct ratio between the thermal diffusion and thermoelastic components of the photoacoustic signal. Furthermore, it is found that the volume-absorber approach accurately describes the behavior of the amplitude, but not that of the phase recorded for a 112 mu m-thick sample, due to its relatively strong thermoelastic bending, which is not considered by this theory. Within the approximation of the small bending, the proposed volume-absorber model provides a reliable description of the photoacoustic signal for Al samples thicker than 112 mu m, and extends the applicability of the classical opaque approach. (C) 2015 AIP Publishing LLC.
T2  - Journal of Applied Physics
T1  - Effect of the absorption coefficient of aluminium plates on their thermoelastic bending in photoacoustic experiments
VL  - 117
IS  - 24
DO  - 10.1063/1.4922718
ER  - 
@article{
author = "Markushev, Dragan D. and Ordonez-Miranda, J. and Rabasović, Mihailo D. and Galović, Slobodanka and Todorovic, D. M. and Bialkowski, S. E.",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/645",
abstract = "The open-cell photoacoustic signal measured in the transmission configuration for aluminum thin plates with thicknesses of 280 mu m, 197 mu m, and 112 mu m is experimentally and theoretically analyzed, in the 20 Hz-7 kHz modulation frequency range. It is shown that the observed differences between the predictions of the standard thermoelastic model and the experiment data of both the amplitude and phase of the photoacoustic signal can be overcome by considering the aluminum samples coated with a thin layer of black paint as volume-absorber materials. This new approach provides a quite good agreement with the obtained experimental data, in the whole frequency range, and yields an effective absorption coefficient of (16 +/- 2) mm(-1), for a 280 mu m-thick sample. The introduction of the finite absorption coefficient led to the correct ratio between the thermal diffusion and thermoelastic components of the photoacoustic signal. Furthermore, it is found that the volume-absorber approach accurately describes the behavior of the amplitude, but not that of the phase recorded for a 112 mu m-thick sample, due to its relatively strong thermoelastic bending, which is not considered by this theory. Within the approximation of the small bending, the proposed volume-absorber model provides a reliable description of the photoacoustic signal for Al samples thicker than 112 mu m, and extends the applicability of the classical opaque approach. (C) 2015 AIP Publishing LLC.",
journal = "Journal of Applied Physics",
title = "Effect of the absorption coefficient of aluminium plates on their thermoelastic bending in photoacoustic experiments",
volume = "117",
number = "24",
doi = "10.1063/1.4922718"
}
Markushev, D. D., Ordonez-Miranda, J., Rabasović, M. D., Galović, S., Todorovic, D. M.,& Bialkowski, S. E. (2015). Effect of the absorption coefficient of aluminium plates on their thermoelastic bending in photoacoustic experiments.
Journal of Applied Physics, 117(24).
https://doi.org/10.1063/1.4922718
Markushev DD, Ordonez-Miranda J, Rabasović MD, Galović S, Todorovic DM, Bialkowski SE. Effect of the absorption coefficient of aluminium plates on their thermoelastic bending in photoacoustic experiments. Journal of Applied Physics. 2015;117(24)
Markushev Dragan D., Ordonez-Miranda J., Rabasović Mihailo D., Galović Slobodanka, Todorovic D. M., Bialkowski S. E., "Effect of the absorption coefficient of aluminium plates on their thermoelastic bending in photoacoustic experiments" Journal of Applied Physics, 117, no. 24 (2015),
https://doi.org/10.1063/1.4922718 .
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Photoacoustic signal and noise analysis for Si thin plate: Signal correction in frequency domain

Markushev, Dragan D.; Rabasović, Mihailo D.; Todorovic, D. M.; Galović, Slobodanka; Bialkowski, S. E.

(2015)

TY  - JOUR
AU  - Markushev, Dragan D.
AU  - Rabasović, Mihailo D.
AU  - Todorovic, D. M.
AU  - Galović, Slobodanka
AU  - Bialkowski, S. E.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/488
AB  - Methods for photoacoustic signal measurement, rectification, and analysis for 85 mu m thin Si samples in the 20-20 000 Hz modulation frequency range are presented. Methods for frequency-dependent amplitude and phase signal rectification in the presence of coherent and incoherent noise as well as distortion due to microphone characteristics are presented. Signal correction is accomplished using inverse system response functions deduced by comparing real to ideal signals for a sample with well-known bulk parameters and dimensions. The system response is a piece-wise construction, each component being due to a particular effect of the measurement system. Heat transfer and elastic effects are modeled using standard Rosencweig-Gersho and elastic-bending theories. Thermal diffusion, thermoelastic, and plasmaelastic signal components are calculated and compared to measurements. The differences between theory and experiment are used to detect and correct signal distortion and to determine detector and sound-card characteristics. Corrected signal analysis is found to faithfully reflect known sample parameters. (C) 2015 AIP Publishing LLC.
T2  - Review of Scientific Instruments
T1  - Photoacoustic signal and noise analysis for Si thin plate: Signal correction in frequency domain
VL  - 86
IS  - 3
DO  - 10.1063/1.4914894
ER  - 
@article{
author = "Markushev, Dragan D. and Rabasović, Mihailo D. and Todorovic, D. M. and Galović, Slobodanka and Bialkowski, S. E.",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/488",
abstract = "Methods for photoacoustic signal measurement, rectification, and analysis for 85 mu m thin Si samples in the 20-20 000 Hz modulation frequency range are presented. Methods for frequency-dependent amplitude and phase signal rectification in the presence of coherent and incoherent noise as well as distortion due to microphone characteristics are presented. Signal correction is accomplished using inverse system response functions deduced by comparing real to ideal signals for a sample with well-known bulk parameters and dimensions. The system response is a piece-wise construction, each component being due to a particular effect of the measurement system. Heat transfer and elastic effects are modeled using standard Rosencweig-Gersho and elastic-bending theories. Thermal diffusion, thermoelastic, and plasmaelastic signal components are calculated and compared to measurements. The differences between theory and experiment are used to detect and correct signal distortion and to determine detector and sound-card characteristics. Corrected signal analysis is found to faithfully reflect known sample parameters. (C) 2015 AIP Publishing LLC.",
journal = "Review of Scientific Instruments",
title = "Photoacoustic signal and noise analysis for Si thin plate: Signal correction in frequency domain",
volume = "86",
number = "3",
doi = "10.1063/1.4914894"
}
Markushev, D. D., Rabasović, M. D., Todorovic, D. M., Galović, S.,& Bialkowski, S. E. (2015). Photoacoustic signal and noise analysis for Si thin plate: Signal correction in frequency domain.
Review of Scientific Instruments, 86(3).
https://doi.org/10.1063/1.4914894
Markushev DD, Rabasović MD, Todorovic DM, Galović S, Bialkowski SE. Photoacoustic signal and noise analysis for Si thin plate: Signal correction in frequency domain. Review of Scientific Instruments. 2015;86(3)
Markushev Dragan D., Rabasović Mihailo D., Todorovic D. M., Galović Slobodanka, Bialkowski S. E., "Photoacoustic signal and noise analysis for Si thin plate: Signal correction in frequency domain" Review of Scientific Instruments, 86, no. 3 (2015),
https://doi.org/10.1063/1.4914894 .
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Photothermal Thermoelastic Bending for Media with Thermal Memory

Nešić, Mioljub V.; Galović, Slobodanka; Soskic, Z.; Popović, Milan; Todorovic, D. M.

(2012)

TY  - JOUR
AU  - Nešić, Mioljub V.
AU  - Galović, Slobodanka
AU  - Soskic, Z.
AU  - Popović, Milan
AU  - Todorovic, D. M.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6985
AB  - Photothermal thermoelastic bending depends on an optically generated dynamic thermal field distribution within a sample. A generalized description of the distribution is proposed, including the effects of a finite heat propagation velocity and a finite, non-zero time of thermal relaxation (known as thermal memory effects in generalized heat conduction theory), and finally the generated thermoelastic bending is calculated by using both a thin solid-plate approximation and a decoupling system of thermoelastic equations. The comparison between this model and the classical one, which does not account for thermal memory influence, has been made. If the sample is thicker than the value of its minimal thermal diffusion length, the difference between the two models becomes insignificant. Otherwise, it has been shown that the two models tend to overlap at low and high modulation frequencies of the excitation light, while in the mid-frequency range, some deviations become more apparent and thermal memory properties of the sample must be taken into account. The suggested model enables evaluation of thermal memory properties for such a solid.
T2  - International Journal of Thermophysics
T1  - Photothermal Thermoelastic Bending for Media with Thermal Memory
VL  - 33
IS  - 10-11
SP  - 2203
EP  - 2209
DO  - 10.1007/s10765-012-1237-6
ER  - 
@article{
author = "Nešić, Mioljub V. and Galović, Slobodanka and Soskic, Z. and Popović, Milan and Todorovic, D. M.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6985",
abstract = "Photothermal thermoelastic bending depends on an optically generated dynamic thermal field distribution within a sample. A generalized description of the distribution is proposed, including the effects of a finite heat propagation velocity and a finite, non-zero time of thermal relaxation (known as thermal memory effects in generalized heat conduction theory), and finally the generated thermoelastic bending is calculated by using both a thin solid-plate approximation and a decoupling system of thermoelastic equations. The comparison between this model and the classical one, which does not account for thermal memory influence, has been made. If the sample is thicker than the value of its minimal thermal diffusion length, the difference between the two models becomes insignificant. Otherwise, it has been shown that the two models tend to overlap at low and high modulation frequencies of the excitation light, while in the mid-frequency range, some deviations become more apparent and thermal memory properties of the sample must be taken into account. The suggested model enables evaluation of thermal memory properties for such a solid.",
journal = "International Journal of Thermophysics",
title = "Photothermal Thermoelastic Bending for Media with Thermal Memory",
volume = "33",
number = "10-11",
pages = "2203-2209",
doi = "10.1007/s10765-012-1237-6"
}
Nešić, M. V., Galović, S., Soskic, Z., Popović, M.,& Todorovic, D. M. (2012). Photothermal Thermoelastic Bending for Media with Thermal Memory.
International Journal of Thermophysics, 33(10-11), 2203-2209.
https://doi.org/10.1007/s10765-012-1237-6
Nešić MV, Galović S, Soskic Z, Popović M, Todorovic DM. Photothermal Thermoelastic Bending for Media with Thermal Memory. International Journal of Thermophysics. 2012;33(10-11):2203-2209
Nešić Mioljub V., Galović Slobodanka, Soskic Z., Popović Milan, Todorovic D. M., "Photothermal Thermoelastic Bending for Media with Thermal Memory" International Journal of Thermophysics, 33, no. 10-11 (2012):2203-2209,
https://doi.org/10.1007/s10765-012-1237-6 .
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Photothermal dynamic elastic bending in a semiconductor circular plate induced by a focused laser beam

Galović, Slobodanka; Popović, Milan; Todorovic, D. M.

(2010)

TY  - CONF
AU  - Galović, Slobodanka
AU  - Popović, Milan
AU  - Todorovic, D. M.
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6902
AB  - The theoretical models of optically induced elastic bending for a semiconductor circular plate (clamped and simply supported) was derived including both plasmaelastic (PE) and thermoelastic (TE) wave influences. The PE and TE effects versus the modulation frequency of focused laser excitation were analyzed. Obtained results were compared with the optically excited elastic bending produced by homogeneous surface heat source and with experimental measurements.
C3  - Journal of Physics: Conference Series
T1  - Photothermal dynamic elastic bending in a semiconductor circular plate induced by a focused laser beam
VL  - 214
DO  - 10.1088/1742-6596/214/1/012113
ER  - 
@conference{
author = "Galović, Slobodanka and Popović, Milan and Todorovic, D. M.",
year = "2010",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6902",
abstract = "The theoretical models of optically induced elastic bending for a semiconductor circular plate (clamped and simply supported) was derived including both plasmaelastic (PE) and thermoelastic (TE) wave influences. The PE and TE effects versus the modulation frequency of focused laser excitation were analyzed. Obtained results were compared with the optically excited elastic bending produced by homogeneous surface heat source and with experimental measurements.",
journal = "Journal of Physics: Conference Series",
title = "Photothermal dynamic elastic bending in a semiconductor circular plate induced by a focused laser beam",
volume = "214",
doi = "10.1088/1742-6596/214/1/012113"
}
Galović, S., Popović, M.,& Todorovic, D. M. (2010). Photothermal dynamic elastic bending in a semiconductor circular plate induced by a focused laser beam.
Journal of Physics: Conference Series, 214.
https://doi.org/10.1088/1742-6596/214/1/012113
Galović S, Popović M, Todorovic DM. Photothermal dynamic elastic bending in a semiconductor circular plate induced by a focused laser beam. Journal of Physics: Conference Series. 2010;214
Galović Slobodanka, Popović Milan, Todorovic D. M., "Photothermal dynamic elastic bending in a semiconductor circular plate induced by a focused laser beam" Journal of Physics: Conference Series, 214 (2010),
https://doi.org/10.1088/1742-6596/214/1/012113 .

Optically excited plasmaelastic waves in semiconductor plate-coupled plasma and elastic phenomena

Todorovic, D. M.; Galović, Slobodanka; Popović, Milan

(2010)

TY  - CONF
AU  - Todorovic, D. M.
AU  - Galović, Slobodanka
AU  - Popović, Milan
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6901
AB  - A system of coupled plasma and elastic waves (the plasmaelastic waves) equations are analyzed. The treatment considers a semiconductor elastic plate with isotropic and homogeneous plasma and elastic properties. The solution of the coupled system of plasma and elastic equations are given for a typical photothermal configuration including the carrier surface and volume recombination processes. The analysis of the plasma density and elastic fields shows that the coupling plasmaelastic effects show the attenuation and disperse phenomena.
C3  - Journal of Physics: Conference Series
T1  - Optically excited plasmaelastic waves in semiconductor plate-coupled plasma and elastic phenomena
VL  - 214
DO  - 10.1088/1742-6596/214/1/012106
ER  - 
@conference{
author = "Todorovic, D. M. and Galović, Slobodanka and Popović, Milan",
year = "2010",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/6901",
abstract = "A system of coupled plasma and elastic waves (the plasmaelastic waves) equations are analyzed. The treatment considers a semiconductor elastic plate with isotropic and homogeneous plasma and elastic properties. The solution of the coupled system of plasma and elastic equations are given for a typical photothermal configuration including the carrier surface and volume recombination processes. The analysis of the plasma density and elastic fields shows that the coupling plasmaelastic effects show the attenuation and disperse phenomena.",
journal = "Journal of Physics: Conference Series",
title = "Optically excited plasmaelastic waves in semiconductor plate-coupled plasma and elastic phenomena",
volume = "214",
doi = "10.1088/1742-6596/214/1/012106"
}
Todorovic, D. M., Galović, S.,& Popović, M. (2010). Optically excited plasmaelastic waves in semiconductor plate-coupled plasma and elastic phenomena.
Journal of Physics: Conference Series, 214.
https://doi.org/10.1088/1742-6596/214/1/012106
Todorovic DM, Galović S, Popović M. Optically excited plasmaelastic waves in semiconductor plate-coupled plasma and elastic phenomena. Journal of Physics: Conference Series. 2010;214
Todorovic D. M., Galović Slobodanka, Popović Milan, "Optically excited plasmaelastic waves in semiconductor plate-coupled plasma and elastic phenomena" Journal of Physics: Conference Series, 214 (2010),
https://doi.org/10.1088/1742-6596/214/1/012106 .