1 / 14

Exploring Spatial Coherence and Holography: Key Concepts and Applications

This lecture discusses the principles of spatial coherence and its applications in holography. It covers transverse modes, emphasizing the significance of the TEM00 mode as the only fully spatially coherent mode. The talk addresses how any spatial mode can be represented as a combination of various transverse modes and the implications for spatial mode filtering. Additionally, it explores the loss of phase information in simple photography, two-beam interference, virtual image reconstruction, and phase contrast imaging, highlighting their relevance in creating 3D views of objects like red blood cells.

vivian-kirkland
Download Presentation

Exploring Spatial Coherence and Holography: Key Concepts and Applications

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lecture 39 Spatial Coherence and Holography Honors talks this evening….

  2. Spatial Coherence

  3. Transverse Modes The 00 mode is the smallest….

  4. Modes and phases Only the TEM00 mode is fully spatial coherent

  5. Spatial Coherence II Any spatial mode can be described as a linear combination of the various transverse modes

  6. Spatial Mode Filtering Slit only wide enough to allow 00 mode To propagate….

  7. Speckle

  8. Wavefront correction

  9. Simple Photography uses only amplitude Picture looks ‘flat’. Reason is, we have lost information (i.e. phase)

  10. Two beam interference

  11. Holography

  12. Virtual Image Reconstruct 3D view with the phase Holography

  13. Zone Plates revisited 2D Fourier transform Equals a small spot

  14. Phase contrast imaging 3D view of red blood cell…

More Related