Research Article

Study on Quantitative Phase Imaging by Dual-Wavelength Digital Holography Microscopy

Table 2

The comparison of the height distributions.

Wavelength( nm)Absolute height
( nm)
Relative error (compared with the scanned value)Variance

632.861.814.4%1.925×
53299.383.8%3.188×
equivalent wavelength47.513.8%1.504×