Optical Design & Engineering
Increasing light-induced forces with photonic crystals
A new structure of free-standing 1D porous silicon foils is configured to produce forces that are 500 times greater than conventional optical tweezers.
Fast 3D imaging in optical microscopy
A new spatial-spectral technique based on volume holographic methods can be used to acquire resolved images from multiple depths simultaneously.
Increasing satellite communication range
A high-power laser diode has been demonstrated that will provide an order of magnitude increase in brightness compared with conventional devices.
Finalist proposals named for photonics manufacturing institute funding
SPIE Newsroom 30 January 2015
Compact optical probe for inner profile measurements of pipes
A new instrument can measure objects with apertures that range from 20 to 200mm or more, and consists of a laser diode, a conical mirror, and a miniature CCD or CMOS camera.