The analysis of the influence of optical absorbance on photothermally induced surface temperature variations in a thin sample of high optical transparence
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In transmission gas-microphone photoacoustics, in order to protect the microphone and improve the Signal to Noise Ratio of the experiment, a thin non-transparent layer is applied on the surface of the sample. When the applied layer is not illuminated – the incident light is passed through the sample, instead, and all the transmitted radiation is absorbed at the non-illuminated side of the system – optical absorption properties of the sample are preserved in the recorded photoacoustic response [1-3]. Thermoelastic component of photoacoustic response is based on the integral of temperature distribution in the sample. However, in the described configuration, the amplitude ratio and the phase difference of surface temperature variations can notably influence the direction and the intensity of the thermoelastic movement of the sample, thus modifying the induced photoacoustic response. Herein, the analysis of surface temperature variations is done, aimed at the prediction of thermoelastic co...mponent of the induced photoacoustic response, and the sensitivity of the described model to the alterations of optical absorption coefficient is analyzed and discussed.
Извор:
PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade, 2023, 123-123Издавач:
- Belgrade : Vinča Institute of Nuclear Sciences
Напомена:
- IX International School and Conference on Photonics : PHOTONICA2023 : book of abstracts; August 28 - September 1, 2023; Belgrade
Колекције
Институција/група
VinčaTY - CONF AU - Nešić, M. AU - Popović, M. AU - Galović, Slobodanka AU - Miletić, V. AU - Kostić, Lj. PY - 2023 UR - https://vinar.vin.bg.ac.rs/handle/123456789/11819 AB - In transmission gas-microphone photoacoustics, in order to protect the microphone and improve the Signal to Noise Ratio of the experiment, a thin non-transparent layer is applied on the surface of the sample. When the applied layer is not illuminated – the incident light is passed through the sample, instead, and all the transmitted radiation is absorbed at the non-illuminated side of the system – optical absorption properties of the sample are preserved in the recorded photoacoustic response [1-3]. Thermoelastic component of photoacoustic response is based on the integral of temperature distribution in the sample. However, in the described configuration, the amplitude ratio and the phase difference of surface temperature variations can notably influence the direction and the intensity of the thermoelastic movement of the sample, thus modifying the induced photoacoustic response. Herein, the analysis of surface temperature variations is done, aimed at the prediction of thermoelastic component of the induced photoacoustic response, and the sensitivity of the described model to the alterations of optical absorption coefficient is analyzed and discussed. PB - Belgrade : Vinča Institute of Nuclear Sciences C3 - PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade T1 - The analysis of the influence of optical absorbance on photothermally induced surface temperature variations in a thin sample of high optical transparence SP - 123 EP - 123 UR - https://hdl.handle.net/21.15107/rcub_vinar_11819 ER -
@conference{ author = "Nešić, M. and Popović, M. and Galović, Slobodanka and Miletić, V. and Kostić, Lj.", year = "2023", abstract = "In transmission gas-microphone photoacoustics, in order to protect the microphone and improve the Signal to Noise Ratio of the experiment, a thin non-transparent layer is applied on the surface of the sample. When the applied layer is not illuminated – the incident light is passed through the sample, instead, and all the transmitted radiation is absorbed at the non-illuminated side of the system – optical absorption properties of the sample are preserved in the recorded photoacoustic response [1-3]. Thermoelastic component of photoacoustic response is based on the integral of temperature distribution in the sample. However, in the described configuration, the amplitude ratio and the phase difference of surface temperature variations can notably influence the direction and the intensity of the thermoelastic movement of the sample, thus modifying the induced photoacoustic response. Herein, the analysis of surface temperature variations is done, aimed at the prediction of thermoelastic component of the induced photoacoustic response, and the sensitivity of the described model to the alterations of optical absorption coefficient is analyzed and discussed.", publisher = "Belgrade : Vinča Institute of Nuclear Sciences", journal = "PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade", title = "The analysis of the influence of optical absorbance on photothermally induced surface temperature variations in a thin sample of high optical transparence", pages = "123-123", url = "https://hdl.handle.net/21.15107/rcub_vinar_11819" }
Nešić, M., Popović, M., Galović, S., Miletić, V.,& Kostić, Lj.. (2023). The analysis of the influence of optical absorbance on photothermally induced surface temperature variations in a thin sample of high optical transparence. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade Belgrade : Vinča Institute of Nuclear Sciences., 123-123. https://hdl.handle.net/21.15107/rcub_vinar_11819
Nešić M, Popović M, Galović S, Miletić V, Kostić L. The analysis of the influence of optical absorbance on photothermally induced surface temperature variations in a thin sample of high optical transparence. in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade. 2023;:123-123. https://hdl.handle.net/21.15107/rcub_vinar_11819 .
Nešić, M., Popović, M., Galović, Slobodanka, Miletić, V., Kostić, Lj., "The analysis of the influence of optical absorbance on photothermally induced surface temperature variations in a thin sample of high optical transparence" in PHOTONICA2023 : 9th International School and Conference on Photonics : book of abstracts; August 28 - September 1, 2023; Belgrade (2023):123-123, https://hdl.handle.net/21.15107/rcub_vinar_11819 .