Home > News > Holography and Digital Holography Microscopy (DHM)
February 26th, 2007
Holography and Digital Holography Microscopy (DHM)
Holography was invented in 1947 by Dennis Gabor who received Nobel Prize in 1971 for his work where as before microscopy affected only image variations of intensity as with a photograph. Gabor invention made it possible to record not only intensity but also light phase.
In conventional microscope the object is lead by a conventional light source and enlarged by a lens system. The image shows only contrast in intensity, no accurate 3D or vertical measurement is possible.
In holographic microscopy the beam from a coherent light source or laser is split into two beams. One illuminating the object itself and the other providing a reference beam which when recombine with the other beam creates a phase interference that is registered on the hologram plate.
UO-Berkeley Lab unveil new nano-sized synthetic scaffolding technique: Oil-and-water approach from Richmond's UO lab to spark new line of versatile peptoid nanosheets September 2nd, 2014
New synthesis method may shape future of nanostructures, clean energy: Findings advance efficient solar spliting of water into hydrogen fuel September 2nd, 2014
Engineers develop new sensor to detect tiny individual nanoparticles September 2nd, 2014
Future solar panels September 2nd, 2014
Accounting for Biological Aggregation in Heating and Imaging of Magnetic Nanoparticles September 2nd, 2014
Raman Whispering Gallery Detects Nanoparticles September 1st, 2014
New analytical technology reveals 'nanomechanical' surface traits August 29th, 2014
Ultra-Low Frequency Vibration Isolation Stabilizes Scanning Tunneling Microscopy at UCLA’s Nano-Research Group August 28th, 2014