Figure 1.

InCh setup for single-exposure holographic phase imaging of biological samples. ${\mathrm{L}}_1$, ${\mathrm{L}}_2=\text{lenses}$, $\text{SPF}=\text{spatial}$ filter/beam expander (two lenses and a confocally positioned pinhole), $\text{BS}=\mathrm{beamsplitter}$, $\text{MC}=\text{mirror}$ coating (on the front face of the rear coverslip), $\mathrm{ARC}=\text{antireflection}$ coating (on the rear face of the front coverslip), and $\mathrm{BSC}=\mathrm{beamsplitter}$ coating (on the front face of the front coverslip).