April 26-30th

Three talks will be hold and one poster presented at OSA Optics & Photonics Congress in the Digital Holography and Thre-Dimensional Imaging (DH) conference to be hold in Vancover April 26-30:

Talks:

• " Second Harmonic and Fundamental Wavelength Digital Holographic Microscopy" ,
  E. Shaffer, JTuA3, 28.04.2009 - 09:30
  
• "Exploring Cell Dynamics with Digital Holographic Microscopy " ,
  B. Rappaz, DTuA2, 28.04.2009 - 11:30
• "Tomography of Red Blood Cells by Multiple-Wavelength Digital Holographic Microscopy" ,
  J. Kühn, DTuA3, 28.04.2009 - 11:45

• " Extended Depth-of-Field and 3D Information Extraction in Digital Holographic Microscopy" ,
  I. Bergoënd, DWB5

Abstracts:

Second Harmonic and Fundamental Wavelength Digital Holographic Microscopy
We report on a new, multi-functional second harmonic generation digital holographic microscope that allows retrieval of an object complex diffraction wavefront at both second harmonic and fundamental wavelengths.

Exploring Cell Dynamics with Digital Holographic MicroscopyQuantitative phase signal (QPS) provided by digital holographic microscopy has permitted to investigate Cellular Membrane nano-Fluctuations (CMnF), of red blood cells as well as to perform an optical measurement of cell electrical activity.

Tomography of Red Blood Cells by Multiple-Wavelength Digital Holographic MicroscopyWe present a method enabling cell-tomography by multiple-wavelength digital holographic microscopy. 20 reflection-holograms between 485 and 670 nm are sequentially acquired, then the wavefronts are summed to obtain 3-D tomographic reconstruction of red blood cells.

Extended Depth-of-Field and 3D Information Extraction in Digital Holographic MicroscopyA comparison of algorithms for depth-of-field extension in the particular field of digital holographic microscopy is presented. Using the reconstruction properties of holography, a simple 3D reconstruction method from a single hologram is deducted.