Diffraction phase microscopy with white light

Basanta Bhaduri, Hoa Pham, Mustafa Mir, Gabriel Popescu

Research output: Contribution to journalArticlepeer-review


We present white light diffraction phase microscopy (wDPM) as a quantitative phase imaging method that combines the single shot measurement benefit associated with off-axis methods, high temporal phase stability associated with common path geometries, and high spatial phase sensitivity due to the white light illumination. We propose a spatiotemporal filtering method that pushes the limit of the pathlength sensitivity to the subangstrom level at practical spatial and temporal bandwidths. We illustrate the utility of wDPM with measurements on red blood cell morphology and HeLa cell growth over 18 hours.

Original languageEnglish (US)
Pages (from-to)1094-1096
Number of pages3
JournalOptics Letters
Issue number6
StatePublished - Mar 15 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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