Journal ArticleDOI
Photo‐acoustic spectroscopy of solids
TLDR
In this article, a method for photo-acoustic spectroscopy of solids is presented, and some applications of this new technique are discussed, as well as criteria for the light sources, sample chambers, and data acquisition systems.Abstract:
A method is presented by which photo‐acoustic spectroscopy of solids may be performed. Criteria for the light sources, sample chambers, and data acquisition systems are discussed. The dependence of the photo‐acoustic signal on various experimental parameters is explored, and some of the applications of this new technique are discussed.read more
Citations
More filters
Journal ArticleDOI
Photoacoustic and related photothermal techniques
H. Vargas,L.C.M. Miranda +1 more
TL;DR: In this article, the authors review the theory and applications of photoacoustic and related methods belonging to the general area of photothermal measurement techniques, including spectroscopic applications such as infrared and microwave spectroscopies, monitoring of non-radiative deexcitation processes, biological applications, and measurements of thermal properties.
Journal ArticleDOI
Photoacoustic spectroscopy and radiant energy conversion: theory of the effect with special emphasis on photosynthesis
Shmuel Malkin,David Cahln +1 more
TL;DR: In this article, the use of photoacoustic spectroscopy in the study of photoactive samples (photochemical, luminescent, photovoltaic) is considered, showing the possibility of separating reaction steps according to their rate constants.
Journal ArticleDOI
Surface and subsurface structure of solids by laser photoacoustic spectroscopy
TL;DR: In this article, the authors applied photoacoustic spectroscopy to studies of surface and subsurface structures of solids, focusing on silicon-nitride ceramic material, which is used for the manufacturing of turbine blades.
Journal ArticleDOI
Optothermal transient emission radiometry
TL;DR: In this article, the information content of the thermal emission transient observed by means of a wideband infrared detector, following pulsed optical excitation of the material was used to study optical absorption, thermal diffusivities and associated properties in opaque materials.
Journal ArticleDOI
Extension of the Rosencwaig‐Gersho photoacoustic spectroscopy theory to include effects of a sample coating
TL;DR: In this paper, the Rosencwaig-Gersho theory for the photoacoustic signal from a homogeneous solid has been extended to include effects of a coating layer with different thermal and optical properties than the substrate.
References
More filters
Book
Fundamentals of acoustics
TL;DR: In this article, the authors present a two-dimensional wave equation and simple solutions for the wave equation with respect to the two dimensions of the wave and the two types of vibrations.
Journal ArticleDOI
Theory of the photoacoustic effect with solids
Allan Rosencwaig,Allen Gersho +1 more
TL;DR: In this article, a quantitative derivation for the acoustic signal in a photoacoustic cell in terms of the optical, thermal, and geometric parameters of the system is presented. And the theory predicts the dependence of the signal on the absorption coefficient of the solid, thereby giving a theoretical foundation for the technique of photoacoustical spectroscopy.
Journal ArticleDOI
Ultralow Gas Concentration Infrared Absorption Spectroscopy
TL;DR: In this article, a new technique was presented for obtaining the absorption spectra of small samples and low concentrations of gases, which makes use of currently available sources of wavelength-tunable intense coherent light such as the optical parametric oscillator, dye laser, or tunable diode laser.
Journal ArticleDOI
Photoacoustic spectroscopy of solids
TL;DR: In this article, the opto- or photo-acoustic effect used in gas analysis has been extended to the study of solids, providing a simple method for obtaining information about optical absorptions and subsequent de-excitations in solids.