Optical Society of America

Picosecond Oscilloscope

An oscilloscope is a device for displaying signals that are too fast to be seen by the human eye. Typically the signal consists of a voltage level that changes quickly moment by moment (over millisecond to nanosecond timescales). ...

dateMay 26, 2009 in Optics & Photonics
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De-multiplexing to the max: 640 Gbits/second

Sliced light is how we communicate now. Millions of phone calls and cable television shows per second are dispatched through fibers in the form of digital zeros and ones formed by chopping laser pulses into bits. This slicing ...

dateFeb 02, 2009 in Engineering
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Tiny lasers get a notch up

Tiny disk-shaped lasers as small as a speck of dust could one day beam information through optical computers. Unfortunately, a perfect disk will spray light out, not as a beam, but in all directions. New theoretical results, ...

dateJan 22, 2009 in General Physics
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Taking a closer look at plaque

A team of University of Rochester scientists is using the technique of Raman spectroscopy to study two common dental plaque bacteria, Streptococcus sanguis and mutans. The relative balance of the two may be an indicator of ...

dateOct 26, 2010 in Biochemistry
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