1. H. S. Carslaw and J. C. Jaeger,Conduction of Heat in Solids(Oxford Press, London, England, 1958), p. 56.
2. Subscript 1 refers to gold film, 2 refers to SiO layer, and 3 to copper heat sink.
3. In the plot, δ of Eq. (8) is taken as 0.8x22∕κ2. The plot of the bolometer response would not be altered materially by any reasonable variation in the choice of δ.