Mathematical expressions for the shape and amplitude of a photoacoustic signal generated due to the multiphoton absorption of Gaussian laser pulses are derived. It was found that the sensitivity of a photoacoustic spectrometer increases in proportion to n 3/4 when changing from one-photon linear absorption to nonlinear multiphoton absorption, where n is the nonlinearity exponent. Calibration of the photoacoustic spectrometer used in the measurements of multiphoton absorption cross sections is discussed.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Price includes VAT (USA)
Tax calculation will be finalised during checkout.
V. P. Zharov and V. S. Letokhov, Laser Optical Acoustical Spectroscopy (Nauka, Moscow, 1984).
J.-M. Heritier, “Electrostrictive Limit and Focusing Effects in Pulsed Photoacoustic Detection,” Opt. Commun. 44, 267–272 (1983).
G. J. Diebold, “Application of the Photoacoustic Effects to Studies of Gas Phase Chemical Kinetics,” in Photoacoustic, Phototermal and Photochemical Processes in Gases, Topics in Current Physics, Ed. by P. Hess (Springer, Berlin, 1989), Vol. 46, pp. 125–172.
A. C. Tam, “Signal Enhancement and Noise Suppression Considerations in Photothermal Spectroscopy,” in Photoacoustic and Photothermal Phenomena III, Springer Series in Optical Sciences, Vol. 69, Ed. by D. Bicanic (Berlin, Springer, 1992), pp. 447–462.
N. B. Delone, Interacion of Laser Radiation with Matter (Nauka, Moscow, 1989).
Original Russian Text © A.E. Protasevich, B.A. Tikhomirov, 2011, published in Optica Atmosfery i Okeana.
About this article
Cite this article
Protasevich, A.E., Tikhomirov, B.A. Shape of the photoacoustic signal generated due to multiphoton absorption of Gaussian laser pulses. Atmos Ocean Opt 24, 492 (2011). https://doi.org/10.1134/S1024856011050149
- Linear Absorption
- Nonlinear Absorption
- Photoacoustic Signal
- Multiphoton Absorption
- Gaussian Intensity Distribution