Abstract
We have examined the basic assumptions leading to optimized performance of small photo-acoustic resonators. Previous attempts at miniaturizing photo-acoustic systems have found the loading of the microphone on the cavity to be insignificant. We have shown theoretically and tested experimentally the fact that the microphone loading can have a dramatic effect on the resonator behavior. Treatment of the pressure and volume velocity of the sound waves as analogs of voltage and current facilitates the use of standard electrical engineering techniques and leads to techniques that enable one to efficiently optimize the impedance match between the cavity and the microphone.
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References
A.G. Bell, Am. J. Sci. 20, 305 (1880)
A.G. Bell, Philos. Mag. 11, 510 (1881)
L.B. Kreuzer, J. Appl. Phys. 42, 2934 (1971)
Y.-H. Pao (ed.), Optoacoustic Spectroscopy and Detection (Academic, New York, 1977)
M. Szakall, Z. Bozoki, A. Mohacsi, A. Varga, G. Szabo, Appl. Spectrosc. 58, 792 (2004)
J.P. Besson, S. Schilt, L. Thevanaz, Spectrochim. Acta A 60, 3449 (2004)
A. Miklos, P. Hess, Z. Bozoki, Rev. Sci. Instrum. 72, 1937 (2001)
S. Firebaugh, J. Microelectromech. Syst. 10, 232 (2001)
S. Firebaugh, Miniaturization and Integration of Photoacoustic Detection, Ph.D. thesis, MIT (2001)
P.M. Morse, K.U. Ingard, Theoretical Acoustics (Princeton University Press, Princeton, 1968)
S. Bernegger, M.W. Sigrist, Appl. Phys. B 44, 125 (1987)
T.H. Lee, Planar Microwave Engineering (Cambridge University Press, Cambridge, 2004)
S. Schilte, L. Thevanaz, P. Robert, Opt. Lett. 42, 6728 (2003)
C. Edwards, G. Barwood, P. Gill, B. Schirmer, H. Venzke, A. Melling, Appl. Opt. 38, 4699 (1999)
A. Siegman, Lasers (University Science Books, Mill Valley, CA, 1986)
P. Kluczynsky, O. Axener, Appl. Opt. 38, 5803 (1999)
J. Reid, D. Labrie, Appl. Phys. B 26, 203 (1981)
www.hitran.com
L.E. Kinsler, A.R. Frey, Fundamentals of Acoustics (Wiley, New York, 1962)
H. Levine, J. Schwinger, Phys. Rev. 73, 383 (1948)
S. Bernegger, M.W. Sigrist, Infrared Phys. 30, 375 (1990)
A. Riddle, Patent application (USA, June 2005)
F.G.C. Bijnen, J. Reuss, F.J.M. Harren, Rev. Sci. Instrum. 67, 2914 (1996)
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43.35.Ud; 43.20.Ks; 43.20.Mv
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Riddle, A., Selker, M. Impedance-optimized photo-acoustic spectroscopy. Appl. Phys. B 85, 329–336 (2006). https://doi.org/10.1007/s00340-006-2364-1
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DOI: https://doi.org/10.1007/s00340-006-2364-1