Table 1: Absorption coefficient µa, reduced scattering coefficient µs′, and optical penetration depth δ of the prostate tissues at a wavelength of 980 nm, measured using a double-integrating-sphere optical system and the inverse Monte Carlo method. n indicates the number of samples.

	µa [mm−1]	µs′ [mm−1]	δ [mm]
Human prostate tissue (n = 1)	0.066	0.81	2.4
Bovine prostate tissue (n = 3)	0.061 ± 0.021	0.61 ± 0.04	2.9 ± 0.5