title: Magnitude and phase photoacoustic spectra of chrysotile asbestos, a powdered sample.
abstract: Magnitude and phase photoacoustic spectra of a powdered sample made of chrysotile asbestos have been recorded with a low resolution grating spectrometer at ~16 Hz. A good reproduction of the true absorption spectra is obtained from the recording of the phase variation. The optical, thermal, and acoustical effects occurring within this heterogeneous sample are discussed, and a qualitative explanation of the observations is given.
authors.forename: L
authors.initials: L
authors.lastname: Bertrand
authors.forename: J P
authors.initials: JP
authors.lastname: Monchalin
authors.forename: F
authors.initials: F
authors.lastname: Lepoutre