Yvonne Carts-Powell

Microscopy without Lenses

In Science, technology on September 9, 2011 at 1:05 pm

The world has changed a lot since microscopes were invented. Now computing is cheap, laser pointers are cheap, and digital cameras are cheap — but high-quality lenses are still expensive. Aydogan Ozcan’s group at UCLA is using laser-pointers and CMOS chips (similar to cell phone cameras) to create and capture holograms of tiny objects, with all the components running on 2 AA batteries. The holograms (ie, patterns based on interference) are then run through a computer program that reconstructs the spatial image from the phase information captured by the chip.

The portable, versatile, and cheap microscope could be used for health care applications in the field.
Microscopy without Lenses.

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