Cheap, Portable, Dual-Mode Microscope Uses Holograms

by Kathy Jones on  September 2, 2011 at 7:40 PM Research News
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It is obvious that to serve remote areas of the world, doctors, nurses and field workers need equipment that is portable, versatile, and relatively inexpensive.
 Cheap, Portable, Dual-Mode Microscope Uses Holograms
Cheap, Portable, Dual-Mode Microscope Uses Holograms

Now researchers at the University of California at Los Angeles (UCLA) have built a compact, light-weight, dual-mode microscope that uses holograms instead of lenses. The team describes the new device in a paper published today in the Optical Society's (OSA) open-access journal Biomedical Optics Express.

Their prototype weighs about as much as a medium-sized banana and fits in the palm of a hand. And, since it relies in part on mass-produced consumer electronics, all the materials to make it add up to between $50 and $100 USD.

It also has a two-in-one feature: a transmission mode that can be used to probe relatively large volumes of blood or water, and a reflection mode that can image denser, opaque samples. The spatial resolution for both modes is less than two micrometers—comparable to that achieved by bulkier microscopes with low- to medium-power lenses.



Source: Eurekalert

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