Contents: October 2006 edition

09 Oct 2006

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INTERVIEW

Eye scan shows first sign of Alzheimer’s disease

Scanning the lens of a human eye with infrared laser light can reveal the earliest signs of Alzheimer’s disease in a matter of seconds, according to US start-up Neuroptix.

OPTICAL TRAPPING

Lasers meet fluids: an integrated approach

An optical manipulation and analysis platform that can fit onto a fingernail could significantly change the field of microfluidics.

OPTOELECTRONICS

ZnO-based LEDs begin to show full-colour potential

Start-up MOXtronics has recently produced the first coloured ZnO-based LEDs. Although the efficiency of these LEDs is not high, the emitters have the potential to outperform GaN rivals.

OPTICAL MONITORING

In situ method drives up yields and reduces costs

There is a lot more to making an optical filter than meets the eye. Dominik Goessi looks at the role of in situ monitoring in the production process and reviews the technology.

PRODUCT GUIDE

Hybrid diffractive optics offer an elegant solution

Thanks to a set of unique properties, diffractive optical elements have the potential to transform light into almost any desired distribution. Joshika Akhil gives the low-down on the technology.