Manijeh Razeghi’s group at Northwestern University has patterned an AlN template into isolated mesas that help reduce cracks in the AlGaN-based structure that is then grown.
One approach for end users who wish to replace an aging ion laser or don’t want to hire an expert to align numerous solid-state lasers to a single beam path is to use a device...
A team of researchers has experimentally compared two forms of distributed Raman amplification (DRA) for fibers: one relying on random fiber lasers (RFLs) either forward- or backward...
Researchers from the Fraunhofer Institute for Solar Energy Systems (ISE) and Universidad Politecnicat de Madrid are using rear-side diffraction gratings to capture photons that...
Traditionally difficult, pulse-energy measurement for high-repetition-rate lasers can now be done by instrumentation that increases accuracy and removes guesswork.
Fiber lasers are now being used to make high-performance surface-acoustic-wave (SAW) devices. These lasers raise throughput rates and lower cost of ownership in comparison to ...
Thick (3-10 μm) engineered "on-silicon" substrates—some with rare-earth oxides—are being fabricated to meet high-volume demands for current and next-generation photonic devices...
Manufacturing mobile consumer electronics requires increasingly precise laser-based processing capabilities that can be met by a hybrid ultraviolet (UV) fiber laser with software...
April 1, 2013
(Courtesy of US Navy; photo by Seaman Apprentice Luciano Marano)
Green laser "dazzlers" have joined the growing arsenal of nonlethal weapons. Goals include reducing civilian casualties in conflict zones and blocking insurgent attacks on checkpoints...
The two approaches to terahertz photonics--electronic and optical--have spurred the development of many types of sources, each with its own advantages.
Clinicians anticipate practical, compact photonic test instrumentation to easily identify the several hundred different molecular species in exhaled breath that can indicate disease...
According to the Association for Unmanned Vehicle Systems International (AUVSI), an industry group, the economic benefits of integrating unmanned aerial systems into the US national...
As military conflicts lessen, the makers of unmanned aerial vehicle (UAV) payloads need to redirect innovation toward civil applications. Although the FAA has limited UAV performance...
