Search results
Results From The WOW.Com Content Network
Today it is commonly used to study electric and magnetic fields in thin films, as magnetic and electric fields can shift the phase of the interfering wave passing through the sample. [45] The principle of electron holography can also be applied to interference lithography. [46] Acoustic holography enables sound maps of an object to be generated ...
Holographic Studios, located in the borough of Manhattan in New York City, is the world's oldest gallery of holography. [1] It was founded in 1979 [ 2 ] by Jason Sapan , one of the pioneers of holography.
The term "computer-generated holography" has become used to denote the whole process chain of synthetically preparing holographic light wavefronts suitable for observation. [ 2 ] [ 3 ] If holographic data of existing objects is generated optically and recorded and processed digitally, and subsequently displayed, this is termed CGH as well.
These systems have been used to produce holograms of live people. A holographic portrait of Dennis Gabor was produced in 1971 using a pulsed ruby laser. [1]: Figure 4.5, p44 [8] Thus, the laser power, recording medium sensitivity, recording time and mechanical and thermal stability requirements are all interlinked.
Much of Altadena’s rich architectural history was destroyed in hours. English Revivals. Spanish Colonials. California bungalows. Janes Cottages.
By Lucia Mutikani. WASHINGTON (Reuters) -U.S. single-family homebuilding increased to a 10-month high in December, indicating that construction activity regained some momentum at the end of the ...
Security holograms are labels with a hologram printed onto it for sale security reasons. It is argued by the International Hologram Manufacturers Association that holograms on security labels are difficult to forge because they are replicated from a master hologram which requires expensive specialized and technologically advanced equipment. [ 1 ]
Drugs, weapons and human trafficking. That's probably what comes to mind when thinking about the black market -- but the illegal trade is more varied than you may think, and it also encompasses ...