Laser-induced photoacoustic signal phase study of stratum corneum and epidermis.
Laser-induced photoacoustic signal phase was employed for measurements of optothermal parameters of pig abdomen stratum corneum and epidermis. The non-radiative relaxation time was found to be 28 ms and the thermal diffusion time was 370 ms, yielding a thermal diffusivity value of (4.1 +/- 0.8) x 10(-4) cm2 s-1. This value compares well with other literature values for skin obtained using photothermal techniques.
Department of Instrumentation and Analytical Science, UMIST, Manchester, UK.
M L
ML
Baesso
J
J
Shen
R D
RD
Snook
D000005:Abdomen; D000818:Animals; D004058:Diffusion; D004817:Epidermis / Q000502:physiology; D006358:Hot Temperature; D007834:Lasers; D012879:Skin Physiological Phenomena; D013057:Spectrum Analysis / Q000379:methods; D013552:Swine