A Method to Improve the Imaging Quality in Dual-Wavelength Digital Holographic Microscopy

Table 1

The microstep height experimental results.

Step number	1	2	3	4
DDIPHM	4048.1 ± 18.8 nm	2021.1 ± 16.8 nm	988.5 ± 15.9 nm	89.4 ± 20.6 nm
DDIPHM with BEMD	4043.1 ± 12.1 nm	2027.1 ± 10.2 nm	986.5 ± 9.3 nm	83.5 ± 10.3 nm
Stylus profilometer	4030.8 ± 17.2 nm	1980.0 ± 13.5 nm	963.7 ± 10.7 nm	130.0 ± 9.1 nm
Classical DDHM	—	2032.4 ± 54.8 nm	994.3 ± 52.5 nm	89.6 ± 42.5 nm