Depth-resolved dual-beamlet vibrometry based on Fourier domain low coherence interferometry

Hrebesh M. Subhash, Niloy Choudhury, Fangyi Chen, Ruikang K. Wang, Steven L. Jacques, Alfred L. Nuttall

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We present an optical vibrometer based on delay-encoded, dual-beamlet phase-sensitive Fourier domain interferometric system to provide depth-resolved subnanometer scale vibration information from scattering biological specimens. System characterization, calibration, and preliminary vibrometry with biological specimens were performed. The proposed system has the potential to provide both amplitude and direction of vibration of tissue microstructures on a single two-dimensional plane.

Original languageEnglish (US)
Article number036003
JournalJournal of biomedical optics
Issue number3
StatePublished - Mar 2013


  • Absolute vibrometry
  • Inner ear
  • Interferometry
  • Optical coherence tomography
  • Phase sensitive imaging

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering


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