Optical Society of America

Optical sensors improve railway safety

A string of fiber-optic sensors running along a 36-km stretch of high-speed commuter railroad lines connecting Hong Kong to mainland China has taken more than 10 million measurements over the past few years in a demonstration ...

Sep 30, 2013 3.5 / 5 (2) 0

Open wide and say 'zap'

A group of researchers in Australia and Taiwan has developed a new way to analyze the health of human teeth using lasers. As described in the latest issue of Optics Express,, by measuring how the surface of a tooth respon ...

Aug 18, 2009 4 / 5 (1) 0

World's Highest-Resolution Projector

If one were to stack 16 of the world's best high-definition projectors side-by-side (and on top of each other), the combined image projected would contain 33 megapixels. This is the resolution achieved by the world's highest-resolution ...

May 26, 2009 4.1 / 5 (10) 2