Abstract
We show that the front photoacoustic signal due to a sample consisting of a glass plate with a metal coated surface, at which thermal waves are generated by periodical light absorption, enhances for certain modulation frequencies when the other glass surface is covered with a liquid sample. This contradicts the intuitive expectation based on the assumption that the liquid provides a new channel for heat conduction thereby decreasing the substrate temperature. Experimental results are shown and the described effect is explained using a thermal wave interference model.
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L. Veleva et al., Corros. Sci. 99, 1641 (1997)
O. Delgado-Vasallo, E. Marín, J. Phys. D Appl. Phys. 32, 593 (1999)
O. Delgado-Vasallo et al., J. Phys. IV 125, 201 (2005)
G. Gutiérrez-Juárez et al., Rev. Sci. Instrum. 845, 74 (2003)
C. A. S. Lima, L. C. M. Miranda, H. Vargas, Instrum. Sci. Technol. 34, 191 (2006)
C. A. Bennett, R. R. Patty, Appl. Opt. 21, 49 (1982)
D. P. Almond, P. M. Patel, Photothermal Science and Techniques (Chapman and Hall, London, 1996)
P. Cielo, S. Dallaire, Journal of Materials Engineering Systems 9, 71 (1986)
P. M. Patel, D. P. Almond, J. D. Morris, European Journal for Non-Destructive Testing 1, 64 (1991)
A. C. Bento, S. R. Brown, D. P. Almond, I. G. Turner, J. Mater. Sci. 6, 335 (1995)
A. C. Bento, D. P. Almond, Meas. Sci. Technol. 6, 1 (1995)
A. C. Bento, D. P. Almond, S. R. Brown, I. G. Turner, J. Appl. Phys. 79, 6848 (1996)
D. P. Almond, P. M. Patel, I. M. Pickup, H. Reiter, NDT Int. 18, 17 (1985)
P. M. Patel, P. M Almond, J. Mater. Sci. 20, 955 (1985)
T. M. Coelho et al., J. Appl. Phys. 101, 084701 (2007)
J. Shen, A. Mandelis, Rev. Sci. Instrum., 66, 4999 (1995)
A. Mandelis, A. Matvienko, In: D. Rémiens (Ed.), Pyroelectric Materials and Sensors (Research Signpost, Kerala, India, 2007) 61
E. Marín, H. Vargas, In: E. Marin (Ed.), Thermal Wave Physics and Related Photothermal Techniques: Basic Principles and Recent Developments (Transworld Research Network, Kerala, India, 2009) 99
J. A. P. Lima et al., Rev. Sci. Instrum. 71, 2928 (2000)
I. S. Gradshteym, I. M. Ryzhik, A. Jeffrey Table of Integrals, Series and Products (Academic Press, New York, 1994)
E. Marín, Eur. J. Phys. 28, 429 (2007)
J. Caerels, C. Glorieux, J. Thoen, Rev. Sci. Instrum. 69, 2452 (1998)
A. Hadj Sahraoui et al., Rev. Sci. Instrum. 73, 2766 (2002)
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Marín, E., Vera-Medina, G., García, A. et al. On the modulation frequency dependence of the photoacoustic signal for a metal coated glass-liquid system. centr.eur.j.phys. 8, 634–638 (2010). https://doi.org/10.2478/s11534-009-0121-x
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DOI: https://doi.org/10.2478/s11534-009-0121-x