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Related Experiment Video

Updated: May 29, 2026

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution
08:41

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Published on: August 16, 2012

Lensfree optofluidic microscopy and tomography.

Waheb Bishara1, Serhan O Isikman, Aydogan Ozcan

  • 1Electrical Engineering Department, University of California, Los Angeles, CA, USA.

Annals of Biomedical Engineering
|September 3, 2011
PubMed
Summary
This summary is machine-generated.

Lensfree optofluidic microscopy and tomography uses digital holography for 3D imaging in microfluidic devices. This approach enhances spatial resolution by utilizing fluidic flow for lab-on-a-chip applications.

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Area of Science:

  • Optofluidics
  • Microfluidics
  • Digital Holography

Background:

  • Microfluidic devices enable miniaturized, automated, and cost-effective sample manipulation.
  • Optofluidic devices integrate optics with microfluidics to enhance performance.
  • Lensfree imaging offers a simplified approach to microfluidic analysis.

Purpose of the Study:

  • To present a holographic implementation of lensfree optofluidic microscopy and tomography.
  • To explore 3D on-chip imaging capabilities within microfluidic channels.
  • To demonstrate enhanced spatial resolution through fluidic flow.

Main Methods:

  • Utilizing partially coherent digital in-line holography for phase and amplitude imaging.
  • Leveraging fluidic flow within micro-channels to improve spatial resolution.
  • Reconstructing 3D tomographic images using lensfree projection images at various illumination angles.

Main Results:

  • Achieved phase and amplitude imaging of specimens in micro-channels.
  • Demonstrated higher spatial resolution compared to stationary imaging by using fluidic flow.
  • Successfully reconstructed 3D tomographic images of samples.

Conclusions:

  • Lensfree optofluidic microscopy and tomography offers a powerful 3D imaging solution.
  • The technique provides a compact and effective toolset for lab-on-a-chip devices.
  • This approach simplifies on-chip imaging for biological and chemical analysis.