Add BrightSurf on Google Email

A 3-D light switch for the brain

Scientists have developed a new tool that can deliver precise points of light to a 3-D section of living brain tissue, allowing for unprecedented control over individual neurons. This technology, called optogenetics, has the potential to treat conditions such as Parkinson's disease and epilepsy.

SourceOptica·JournalOptics Letters·DateNov 19, 2012

Laser-powered 'needle' promises pain-free injections

A new laser-based system can propel tiny, precise streams of medicine into the skin with minimal force, potentially eliminating pain from injections. The device uses an erbium-doped yttrium aluminum garnet laser to create a vapor bubble that forces drug-laden jets into the targeted depth of the skin.

SourceOptica·JournalOptics Letters·DateSep 13, 2012

Hearing the telltale sounds of dangerous chemicals

A new sensor uses a phenomenon called photoacoustic effect to detect and identify chemicals, including nerve agents. The system can identify multiple agents simultaneously in real-time, with potential applications for detecting hazardous gases.

SourceOptica·JournalOptics Letters·DateAug 14, 2012

New tool may yield smaller, faster optoelectronics

Researchers have developed a new technique to manipulate surface plasmons in real time, enabling the creation of ultra-small-scale optoelectronic devices and systems. This innovation allows for on-the-fly control and flexibility in nano-system design and manufacture.

SourceOptica·JournalOptics Letters·DateAug 11, 2011