Lasers in Ophthalmology

Now that laser-assisted surgery for nearsightedness has become a routine elective procedure, ophthalmologists and vision scientists are branching out to other medical uses of lasers, from cataract surgery to diagnostic retinal imaging.

Patricia Daukantas

Scatterings

Testing a new model for tiny fiber cores; hole-filled thin film transmits less light; enhancing infrared-sensing capability of an ordinary camera to analyze paintings.

Patricia Daukantas

Forty Years of Optical Manipulation

This year, as the laser celebrates its 50th anniversary, a field that was made possible through laser technology reaches an important milestone as well. Over the past 40 years, optical manipulation research has deepened our understanding of physics and biology, and it has yielded the optical-tweezer technique that is used across all the sciences.

David McGloin and J.P. Reid

History of Gas Lasers, Part 2: Pulsed Gas Lasers

In this second article of a two-part series, Colin Webb explores the origins of pulsed gas lasers, which made possible many critical applications of laser technology, including corneal reshaping and microlithography.

Colin Webb

SPAD Sensors Come of Age

A unique light detector combines single-photon performance, multi-pixel image resolution and deep sub-nanosecond response.

Edoardo Charbon and Silvano Donati