TY  - JOUR
AU  - Todosijević, Slobodan
AU  - Šoškić, Zlatan
AU  - Stojanović, Zoran A.
AU  - Galović, Slobodanka
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1500
AB  - Experimental verification of thermal memory effects represents a challenge that is important from both fundamental and practical points of view. Recent theoretical studies suggest that the thermal memory effect should lead to thermal resonances in the modulation frequency characteristics of photoacoustic response. Therefore, studies of thermal resonances in photoacoustic response represent an alternative for detection of the thermal memory effect and measurement of thermal memory properties. Since the resonances were not observed, this paper analyzes standard measurement setups and shows that the experimental technique should be optimized to provide a better chance of detection of thermal memory effects by photoacoustic measurements. The results show that a proper selection of modulation frequencies and the knowledge of the approximate transfer function of the electronic part of the photoacoustic measurement system are prerequisites for detection of thermal resonances in the modulation frequency characteristics of photoacoustic response.
T2  - International Journal of Thermophysics
T1  - Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments
VL  - 38
IS  - 5
DO  - 10.1007/s10765-017-2215-9
ER  - 

@article{
author = "Todosijević, Slobodan and Šoškić, Zlatan and Stojanović, Zoran A. and Galović, Slobodanka",
year = "2017",
abstract = "Experimental verification of thermal memory effects represents a challenge that is important from both fundamental and practical points of view. Recent theoretical studies suggest that the thermal memory effect should lead to thermal resonances in the modulation frequency characteristics of photoacoustic response. Therefore, studies of thermal resonances in photoacoustic response represent an alternative for detection of the thermal memory effect and measurement of thermal memory properties. Since the resonances were not observed, this paper analyzes standard measurement setups and shows that the experimental technique should be optimized to provide a better chance of detection of thermal memory effects by photoacoustic measurements. The results show that a proper selection of modulation frequencies and the knowledge of the approximate transfer function of the electronic part of the photoacoustic measurement system are prerequisites for detection of thermal resonances in the modulation frequency characteristics of photoacoustic response.",
journal = "International Journal of Thermophysics",
title = "Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments",
volume = "38",
number = "5",
doi = "10.1007/s10765-017-2215-9"
}

Todosijević, S., Šoškić, Z., Stojanović, Z. A.,& Galović, S.. (2017). Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments. in International Journal of Thermophysics, 38(5).
https://doi.org/10.1007/s10765-017-2215-9

Todosijević S, Šoškić Z, Stojanović ZA, Galović S. Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments. in International Journal of Thermophysics. 2017;38(5).
doi:10.1007/s10765-017-2215-9 .

Todosijević, Slobodan, Šoškić, Zlatan, Stojanović, Zoran A., Galović, Slobodanka, "Analysis of the Measurement System and Optimization of the Measurement Procedure for Detection of Thermal Memory Effects by Photoacoustic Experiments" in International Journal of Thermophysics, 38, no. 5 (2017),
https://doi.org/10.1007/s10765-017-2215-9 . .

TY  - JOUR
AU  - Todosijevic, Slobodan Z.
AU  - Šoškić, Zlatan N.
AU  - Galović, Slobodanka
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1062
AB  - Macromolecular nanostructures represent a class of materials of considerable interest for application in nanooptics and nanoelectronics. The potential applications require understanding of the transport mechanisms in macromolecular nanostructures, and the recent theoretical studies indicated that the transport mechanisms of heat generated by absorption of IR and visible light are different. In this paper is proposed a combination of experimental techniques that would enable simultaneous measurement of optical and thermal properties of macromolecular structures excited by wide spectrum of light. The results of the experiments would enable credible testing of validity of the predictions of the theoretical studies, and further insight of the transport processes in macromolecular nanostructures.
PB  - Springer
T2  - Optical and Quantum Electronics
T1  - A combination of frequency photoacoustic and photoacoustic spectroscopy techniques for measurement of optical and thermal properties of macromolecular nanostructures
VL  - 48
IS  - 5
DO  - 10.1007/s11082-016-0571-5
ER  - 

@article{
author = "Todosijevic, Slobodan Z. and Šoškić, Zlatan N. and Galović, Slobodanka",
year = "2016",
abstract = "Macromolecular nanostructures represent a class of materials of considerable interest for application in nanooptics and nanoelectronics. The potential applications require understanding of the transport mechanisms in macromolecular nanostructures, and the recent theoretical studies indicated that the transport mechanisms of heat generated by absorption of IR and visible light are different. In this paper is proposed a combination of experimental techniques that would enable simultaneous measurement of optical and thermal properties of macromolecular structures excited by wide spectrum of light. The results of the experiments would enable credible testing of validity of the predictions of the theoretical studies, and further insight of the transport processes in macromolecular nanostructures.",
publisher = "Springer",
journal = "Optical and Quantum Electronics",
title = "A combination of frequency photoacoustic and photoacoustic spectroscopy techniques for measurement of optical and thermal properties of macromolecular nanostructures",
volume = "48",
number = "5",
doi = "10.1007/s11082-016-0571-5"
}

Todosijevic, S. Z., Šoškić, Z. N.,& Galović, S.. (2016). A combination of frequency photoacoustic and photoacoustic spectroscopy techniques for measurement of optical and thermal properties of macromolecular nanostructures. in Optical and Quantum Electronics
Springer., 48(5).
https://doi.org/10.1007/s11082-016-0571-5

Todosijevic SZ, Šoškić ZN, Galović S. A combination of frequency photoacoustic and photoacoustic spectroscopy techniques for measurement of optical and thermal properties of macromolecular nanostructures. in Optical and Quantum Electronics. 2016;48(5).
doi:10.1007/s11082-016-0571-5 .

Todosijevic, Slobodan Z., Šoškić, Zlatan N., Galović, Slobodanka, "A combination of frequency photoacoustic and photoacoustic spectroscopy techniques for measurement of optical and thermal properties of macromolecular nanostructures" in Optical and Quantum Electronics, 48, no. 5 (2016),
https://doi.org/10.1007/s11082-016-0571-5 . .

TY  - JOUR
AU  - Šoškić, Zlatan N.
AU  - Ciric-Kostic, Snezana
AU  - Galović, Slobodanka
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1209
AB  - The paper presents a study of possibilities to extend the present methodology for thermal characterization of thin solid samples by photoacoustic techniques. The present methodology consists of linear fitting of the experimental data to approximate the expressions derived from the composite piston model of photoacoustic response and it is mainly used for calculation of thermal diffusivity of thin samples. The study has shown that the methodology may be extended to calculation of thermal diffusivity, thermal conductivity and thermal expansion coefficients of thin samples by linear fitting in multiple frequency ranges and by analysis of the intersection frequency, which is the frequency where the magnitudes of two components of photoacoustic response in the composite piston model are equal. The analysis of numeric errors of the methodology has revealed the dominant sources and magnitude of the errors, leading to the conclusion that photoacoustic techniques should be carefully used as a tool for extensive thermal characterization of thin samples in the cases when other techniques are not applicable or have larger errors. (C) 2016 Elsevier Masson SAS. All rights reserved.
T2  - International Journal of Thermal Sciences
T1  - An extension to the methodology for characterization of thermal properties of thin solid samples by photoacoustic techniques
VL  - 109
SP  - 217
EP  - 230
DO  - 10.1016/j.ijthermalsci.2016.06.005
ER  - 

@article{
author = "Šoškić, Zlatan N. and Ciric-Kostic, Snezana and Galović, Slobodanka",
year = "2016",
abstract = "The paper presents a study of possibilities to extend the present methodology for thermal characterization of thin solid samples by photoacoustic techniques. The present methodology consists of linear fitting of the experimental data to approximate the expressions derived from the composite piston model of photoacoustic response and it is mainly used for calculation of thermal diffusivity of thin samples. The study has shown that the methodology may be extended to calculation of thermal diffusivity, thermal conductivity and thermal expansion coefficients of thin samples by linear fitting in multiple frequency ranges and by analysis of the intersection frequency, which is the frequency where the magnitudes of two components of photoacoustic response in the composite piston model are equal. The analysis of numeric errors of the methodology has revealed the dominant sources and magnitude of the errors, leading to the conclusion that photoacoustic techniques should be carefully used as a tool for extensive thermal characterization of thin samples in the cases when other techniques are not applicable or have larger errors. (C) 2016 Elsevier Masson SAS. All rights reserved.",
journal = "International Journal of Thermal Sciences",
title = "An extension to the methodology for characterization of thermal properties of thin solid samples by photoacoustic techniques",
volume = "109",
pages = "217-230",
doi = "10.1016/j.ijthermalsci.2016.06.005"
}

Šoškić, Z. N., Ciric-Kostic, S.,& Galović, S.. (2016). An extension to the methodology for characterization of thermal properties of thin solid samples by photoacoustic techniques. in International Journal of Thermal Sciences, 109, 217-230.
https://doi.org/10.1016/j.ijthermalsci.2016.06.005

Šoškić ZN, Ciric-Kostic S, Galović S. An extension to the methodology for characterization of thermal properties of thin solid samples by photoacoustic techniques. in International Journal of Thermal Sciences. 2016;109:217-230.
doi:10.1016/j.ijthermalsci.2016.06.005 .

Šoškić, Zlatan N., Ciric-Kostic, Snezana, Galović, Slobodanka, "An extension to the methodology for characterization of thermal properties of thin solid samples by photoacoustic techniques" in International Journal of Thermal Sciences, 109 (2016):217-230,
https://doi.org/10.1016/j.ijthermalsci.2016.06.005 . .

TY  - JOUR
AU  - Galović, Slobodanka
AU  - Šoškić, Zlatan
AU  - Popović, Milan
AU  - Čevizović, Dalibor
AU  - Stojanović, Zoran A.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/84
AB  - This paper presents a model for indirect photoacoustic response that includes thermal memory effects. At low frequencies, the model reduces to the well-known thermal piston model of photoacoustic response given by Rosencweig and Gersho. However, at high frequencies, the presented model predicts resonant behavior of amplitudes and phases of photoacoustic response and determines the respective resonant frequencies. The results of the presented model enable experimental determination of standard thermal properties of solids (thermal diffusivity and thermal conductivity), as well as thermal memory properties, thermal relaxation time, and heat propagation speed. (C) 2014 AIP Publishing LLC.
T2  - Journal of Applied Physics
T1  - Theory of photoacoustic effect in media with thermal memory
VL  - 116
IS  - 2
DO  - 10.1063/1.4885458
ER  - 

@article{
author = "Galović, Slobodanka and Šoškić, Zlatan and Popović, Milan and Čevizović, Dalibor and Stojanović, Zoran A.",
year = "2014",
abstract = "This paper presents a model for indirect photoacoustic response that includes thermal memory effects. At low frequencies, the model reduces to the well-known thermal piston model of photoacoustic response given by Rosencweig and Gersho. However, at high frequencies, the presented model predicts resonant behavior of amplitudes and phases of photoacoustic response and determines the respective resonant frequencies. The results of the presented model enable experimental determination of standard thermal properties of solids (thermal diffusivity and thermal conductivity), as well as thermal memory properties, thermal relaxation time, and heat propagation speed. (C) 2014 AIP Publishing LLC.",
journal = "Journal of Applied Physics",
title = "Theory of photoacoustic effect in media with thermal memory",
volume = "116",
number = "2",
doi = "10.1063/1.4885458"
}

Galović, S., Šoškić, Z., Popović, M., Čevizović, D.,& Stojanović, Z. A.. (2014). Theory of photoacoustic effect in media with thermal memory. in Journal of Applied Physics, 116(2).
https://doi.org/10.1063/1.4885458

Galović S, Šoškić Z, Popović M, Čevizović D, Stojanović ZA. Theory of photoacoustic effect in media with thermal memory. in Journal of Applied Physics. 2014;116(2).
doi:10.1063/1.4885458 .

Galović, Slobodanka, Šoškić, Zlatan, Popović, Milan, Čevizović, Dalibor, Stojanović, Zoran A., "Theory of photoacoustic effect in media with thermal memory" in Journal of Applied Physics, 116, no. 2 (2014),
https://doi.org/10.1063/1.4885458 . .

TY  - CONF
AU  - Nešić, Mioljub
AU  - Galović, Slobodanka
AU  - Todosijević, S.
AU  - Popović, M. N.
AU  - Šoškić, Z. N.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12524
AB  - Izveden je izraz za porast temperature na površinama uzorka izloženog desjtvu elektromagnetne energije iz vidljivog dela spektra. Razmatran je slučaj optički poluprovidnog uzorka. Uzet je u obzir uticaj višestrukih refleksija optičke pobude na površinama uzorka. Pokazano je da se pojavljuje korekcioni faktor koji predviđa manji porast temperature na površinama uzorka nego što je to slučaj u klasičnim modelima.
PB  - Beograd : Društvo fizičara Srbije
C3  - XII Kongres fizičara Srbije : Zbornik radova
T1  - Stacionarni fototermalni efekat: Uticaj višestrukih optičkih refleksija
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12524
ER  - 

@conference{
author = "Nešić, Mioljub and Galović, Slobodanka and Todosijević, S. and Popović, M. N. and Šoškić, Z. N.",
year = "2013",
abstract = "Izveden je izraz za porast temperature na površinama uzorka izloženog desjtvu elektromagnetne energije iz vidljivog dela spektra. Razmatran je slučaj optički poluprovidnog uzorka. Uzet je u obzir uticaj višestrukih refleksija optičke pobude na površinama uzorka. Pokazano je da se pojavljuje korekcioni faktor koji predviđa manji porast temperature na površinama uzorka nego što je to slučaj u klasičnim modelima.",
publisher = "Beograd : Društvo fizičara Srbije",
journal = "XII Kongres fizičara Srbije : Zbornik radova",
title = "Stacionarni fototermalni efekat: Uticaj višestrukih optičkih refleksija",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12524"
}

Nešić, M., Galović, S., Todosijević, S., Popović, M. N.,& Šoškić, Z. N.. (2013). Stacionarni fototermalni efekat: Uticaj višestrukih optičkih refleksija. in XII Kongres fizičara Srbije : Zbornik radova
Beograd : Društvo fizičara Srbije..
https://hdl.handle.net/21.15107/rcub_vinar_12524

Nešić M, Galović S, Todosijević S, Popović MN, Šoškić ZN. Stacionarni fototermalni efekat: Uticaj višestrukih optičkih refleksija. in XII Kongres fizičara Srbije : Zbornik radova. 2013;.
https://hdl.handle.net/21.15107/rcub_vinar_12524 .

Nešić, Mioljub, Galović, Slobodanka, Todosijević, S., Popović, M. N., Šoškić, Z. N., "Stacionarni fototermalni efekat: Uticaj višestrukih optičkih refleksija" in XII Kongres fizičara Srbije : Zbornik radova (2013),
https://hdl.handle.net/21.15107/rcub_vinar_12524 .

TY  - JOUR
AU  - Popović, Aleksandar
AU  - Šoškić, Zlatan
AU  - Stojanović, Zoran A.
AU  - Čevizović, Dalibor
AU  - Galović, Slobodanka
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6953
AB  - If the model of the photoacoustic (PA) response of an investigated system contains many unknown parameters, as is the case with multilayered samples, then the inverse procedure for the calculation of the parameters is highly sensitive to experimental noise. The problem cannot be solved by developing the experimental setup or by data acquisition methods, but only by an improvement of the theoretical approach. This paper presents an analysis of the applicability of the effective medium approximation to the PA response of multilayered samples. It has been shown that the theory is not applicable to the general case, and explicit expressions for the effective values of thermal diffusivity and heat propagation speed have been derived for some special cases.
T2  - Physica Scripta
T1  - On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures
VL  - T149
DO  - 10.1088/0031-8949/2012/T149/014066
ER  - 

@article{
author = "Popović, Aleksandar and Šoškić, Zlatan and Stojanović, Zoran A. and Čevizović, Dalibor and Galović, Slobodanka",
year = "2012",
abstract = "If the model of the photoacoustic (PA) response of an investigated system contains many unknown parameters, as is the case with multilayered samples, then the inverse procedure for the calculation of the parameters is highly sensitive to experimental noise. The problem cannot be solved by developing the experimental setup or by data acquisition methods, but only by an improvement of the theoretical approach. This paper presents an analysis of the applicability of the effective medium approximation to the PA response of multilayered samples. It has been shown that the theory is not applicable to the general case, and explicit expressions for the effective values of thermal diffusivity and heat propagation speed have been derived for some special cases.",
journal = "Physica Scripta",
title = "On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures",
volume = "T149",
doi = "10.1088/0031-8949/2012/T149/014066"
}

Popović, A., Šoškić, Z., Stojanović, Z. A., Čevizović, D.,& Galović, S.. (2012). On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures. in Physica Scripta, T149.
https://doi.org/10.1088/0031-8949/2012/T149/014066

Popović A, Šoškić Z, Stojanović ZA, Čevizović D, Galović S. On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures. in Physica Scripta. 2012;T149.
doi:10.1088/0031-8949/2012/T149/014066 .

Popović, Aleksandar, Šoškić, Zlatan, Stojanović, Zoran A., Čevizović, Dalibor, Galović, Slobodanka, "On the applicability of the effective medium approximation to the photoacoustic response of multilayered structures" in Physica Scripta, T149 (2012),
https://doi.org/10.1088/0031-8949/2012/T149/014066 . .

TY  - JOUR
AU  - Nešić, Mioljub V.
AU  - Gusavac, P.
AU  - Popović, Milan
AU  - Šoškić, Zlatan
AU  - Galović, Slobodanka
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6950
AB  - In this paper, a model of the thermoconducting component of the indirect photoacoustic (PA) response is derived that includes thermal memory properties of the examined material and its fluid environment. A comparison is made between the derived model and the classic one, which neglects the influence of thermal memory. It has been shown that, at modulation frequencies lower than a certain boundary frequency of the light source, these models tend to overlap, while at higher frequencies, noticeable differences occur. The boundary frequency depends on heat propagation velocity through the sample and its thickness. This observation limits the validity domain of previous models to a range lower than the boundary frequency, offering, at the same time, the possibility of obtaining thermal memory properties using PA effects at frequencies above it.
T2  - Physica Scripta
T1  - Thermal memory influence on the thermoconducting component of indirect photoacoustic response
VL  - T149
DO  - 10.1088/0031-8949/2012/T149/014018
ER  - 

@article{
author = "Nešić, Mioljub V. and Gusavac, P. and Popović, Milan and Šoškić, Zlatan and Galović, Slobodanka",
year = "2012",
abstract = "In this paper, a model of the thermoconducting component of the indirect photoacoustic (PA) response is derived that includes thermal memory properties of the examined material and its fluid environment. A comparison is made between the derived model and the classic one, which neglects the influence of thermal memory. It has been shown that, at modulation frequencies lower than a certain boundary frequency of the light source, these models tend to overlap, while at higher frequencies, noticeable differences occur. The boundary frequency depends on heat propagation velocity through the sample and its thickness. This observation limits the validity domain of previous models to a range lower than the boundary frequency, offering, at the same time, the possibility of obtaining thermal memory properties using PA effects at frequencies above it.",
journal = "Physica Scripta",
title = "Thermal memory influence on the thermoconducting component of indirect photoacoustic response",
volume = "T149",
doi = "10.1088/0031-8949/2012/T149/014018"
}

Nešić, M. V., Gusavac, P., Popović, M., Šoškić, Z.,& Galović, S.. (2012). Thermal memory influence on the thermoconducting component of indirect photoacoustic response. in Physica Scripta, T149.
https://doi.org/10.1088/0031-8949/2012/T149/014018

Nešić MV, Gusavac P, Popović M, Šoškić Z, Galović S. Thermal memory influence on the thermoconducting component of indirect photoacoustic response. in Physica Scripta. 2012;T149.
doi:10.1088/0031-8949/2012/T149/014018 .

Nešić, Mioljub V., Gusavac, P., Popović, Milan, Šoškić, Zlatan, Galović, Slobodanka, "Thermal memory influence on the thermoconducting component of indirect photoacoustic response" in Physica Scripta, T149 (2012),
https://doi.org/10.1088/0031-8949/2012/T149/014018 . .