Frequency-domain laser infrared photothermal radiometry (PTR) and photoacoustic Fourier transform spectroscopy (FT-IR/PAS) were used for the measurement of the thermophysical properties (thermal diffusivity, alpha, and conductivity, k) of specialty paper samples with various cotton contents. An improved one-dimensional photothermal model of a free-standing sheet of paper in air that includes both the transmission and backscattering mode was introduced. A high degree of accuracy and reliability was obtained when a multiparameter-fit optimization algorithm was used to examine the transmission and backscattered PTR experimental results. The ability to measure alpha and its variation, Delta alpha, as a result of the manufacturing process via the PTR technique is invaluable in terms of the quality control of paper products.
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
Login to access OSA Member Subscription