Dual slopes

Definition: Dual slope approach requires at least two sources and two detectors organized in specially structured arrays and either a continuous-wave (CW) or frequency domain (FD) system. The approach gives increased sensitivity to deeper tissue as well as more robustness to experimental errors and variability in opto-mechanical coupling. The spatial gradient of DC amplitude, AC amplitude, or phase vs source-detector distance is referred to as the slope.

Alternative definition:

Synonym:

References: https://doi.org/10.1364/JOSAA.36.001743

Related terms: