Digital interference holography (DIH) is being developed as a novel method of microscopic 3-D imaging. A number of holo- graphic fields are numerically calculated from optically recorded ho- lograms using a range of wavelengths. Numerical superposition of these fields results in a tomographic representation of the object with narrow axial resolution. We demonstrate the practicality of DIH in microscopic imaging with a set of preliminary experiments, yield- ing approximately 3 mm of lateral resolution and 10 mm of axial resolution, using a simple optical setup and straightforward numeri- cal algorithms. © 2003 SPIE and IS&T. (DOI: 10.1117/1.1604784)
['Aaron Dakoff', 'J. Gass', 'Myung K. Kim']
Microscopic three-dimensional imaging by digital interference holography