TY - JOUR
T1 - About the effective thermal and optical parameters of a two-layer structure in photothermal phenomena
AU - Muñoz Aguirre, N.
AU - Martínez Pérez, L.
AU - Garibay-Febles, V.
AU - Lozada-Cassou, M.
PY - 2005
Y1 - 2005
N2 - The model for the calculation of effective thermal parameters in two-layer structure in photoacoustic phenomena proposed in previous works [1-4] is used for defining and calculating the effective optical parameters. The concept of effective optical absorption coefficient will naturally emerge from the model when a heat source, depending on the position and the optical absorption coefficient, is taken into account. Results for the static limit shows that, in general case, the effective optical absorption coefficient value depends on the effective thermal conductivity, and it is different for rear-surface and front-surface illumination configurations. For optically opaque samples in rear-illumination configuration and optically transparent layers, it is show that the effective optical absorption coefficient and the effective thermal conductivity are independent and can be separately obtained. The latter result suggests for optically transparent samples, it will be correct to use the Maxwell Equations for defining and calculating the effective optical parameters in multilayer structures.
AB - The model for the calculation of effective thermal parameters in two-layer structure in photoacoustic phenomena proposed in previous works [1-4] is used for defining and calculating the effective optical parameters. The concept of effective optical absorption coefficient will naturally emerge from the model when a heat source, depending on the position and the optical absorption coefficient, is taken into account. Results for the static limit shows that, in general case, the effective optical absorption coefficient value depends on the effective thermal conductivity, and it is different for rear-surface and front-surface illumination configurations. For optically opaque samples in rear-illumination configuration and optically transparent layers, it is show that the effective optical absorption coefficient and the effective thermal conductivity are independent and can be separately obtained. The latter result suggests for optically transparent samples, it will be correct to use the Maxwell Equations for defining and calculating the effective optical parameters in multilayer structures.
UR - http://www.scopus.com/inward/record.url?scp=33645065647&partnerID=8YFLogxK
U2 - 10.1051/jp4:2005125036
DO - 10.1051/jp4:2005125036
M3 - Artículo de la conferencia
AN - SCOPUS:33645065647
SN - 1155-4339
VL - 125
SP - 157
EP - 160
JO - Journal De Physique. IV : JP
JF - Journal De Physique. IV : JP
T2 - 13th ICPPP International Conference on Photoacoustic and PhotothermalPhenomena
Y2 - 5 July 2004 through 8 July 2004
ER -