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Materials

Innovation Comes Out of the Wool Work

For millennia, sheep’s wool has been key to major leaps in technology. From the invention of the spinning wheel to the dawn of computer-controlled looms, refining wool into textiles has led to revolutions in industry. Today, wool itself is leading the charge, with some assistance from NASA. Read on to learn more.

INSIDER

Imaging

Filtered Rayleigh Scattering Enables Laser-Optical Measurement of Turbofan Thrust

Pratt & Whitney and Virginia Tech announced a pioneering new technology for calculating thrust using lasers to enable high-fidelity measurement of key gas...

Products

Electronics & Computers

New Products

The new products for October 2022, including radial bearings, a collision avoidance kit, bandpass filter, and more.

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Defense

Researchers Developing Prototype of Next-Gen Night Vision Technology

Three University of Arkansas researchers — electrical engineering professor Shui-Qing “Fisher” Yu, Distinguished Professor Greg Salamo, and Jin Hu, assistant...

Products

Electronics & Computers

New Products

A folded zoom lens, miniature rotary encoders, starter generator control, and more.

INSIDER

Defense

3D-Printed Glass Enhances Optical Design Flexibility

Lawrence Livermore National Laboratory (LLNL) researchers have used multi-material 3D printing to create tailored gradient refractive index glass optics that could make for better...

Articles

RF & Microwave Electronics

Four RF Technology Trends You Need to Know for Satellite Communication Device Design

See the trends today that are helping satcom design engineers meet the data demands of their military and aerospace clients.

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Photonics/Optics

New Enhanced Visual Acuity System Will Help Pilots Fly More Safely

Collins Aerospace Systems, a unit of Raytheon Technologies Corp., is helping the U.S. Navy and Marine Corps transition from analog to digital night vision systems with their...

Briefs

Photonics/Optics

3D Meta-Optics for High-Energy Lasers

The scope of this research radically changed the way novel components are designed and fabricated for high-energy applications. This 3D Meta-Optics platform was, and is, essentially engineering the...

Articles

Photonics/Optics

Combating Infrared Threats on the Battlefield

There have been several news headlines lately about offenders pointing commercial lasers at helicopters or police personnel, temporarily blinding and distracting them. An increasing number of...

Articles

Photonics/Optics

Identifying and Isolating Signals Using Radio Frequency Photonics

A single antenna can be used for both transmission and reception. To accomplish this, the transmission must be isolated from the reception. In Figure 1, a radio frequency...

Articles

Defense

Microwave Photonic Notch Filter

Interference mitigation is crucial in modern radio frequency (RF) communications systems with dynamically changing operating frequencies, such as cognitive radios, modern military radar, and electronic warfare...

Articles

Photonics/Optics

Seeing the Light

In order to meet the requirements of current-generation military ruggedized displays and monitors, various technology innovations have been developed that allow for an enhanced user experience. Accommodating all of these needs...

Articles

Aerospace

Using Forensic Lasers in Modern Warfare

In the conflicts in Iraq and Afghanistan, the enemy’s guerilla tactics have muddled the distinction between terrorism and warfare. To deal with the challenges of this new type of combat, the military...

Briefs

Photonics/Optics

Miniature Snapshot Multispectral Imager

Multispectral imagers use an optical device that can separate the colors to obtain the spectral content in the scene. Such an optical device could be a grating or prism, a filter wheel, a diffractive...

Briefs

Photonics/Optics

Uncooled Tunable LWIR Microbolometers

Uncooled infrared detectors have significant potential capabilities that have been little explored. Micro-machined uncooled detectors with tunable spectral characteristics across the long-wave infrared...

Briefs

Photonics/Optics

Hybrid Micro-Electro-Mechanically Tunable Optical Filter

A prototype hybrid micro-electro- mechanically tunable optical filter (MEM-TF) based partly on an electrostatic-actuation principle has been built and tested as an essential component...

Briefs

Photonics/Optics

Developments in Adaptive Filtering and System Identification

Progress has been made on several fronts in a continuing program of research oriented toward the development of real-time algorithms, and computer and control systems that utilize the...

Briefs

Photonics/Optics

Adaptive Deblurring of Noisy Images

An algorithm for adaptive deblurring of images has been designed to be less adversely affected by image noise than are prior deblurring algorithms. The need for this or another noise-tolerant deblurring...

Briefs

Photonics/Optics

Optical-Fiber Infrasound Sensors

Optical-fiber infrasound sensors (OFISs) are being developed for detecting acoustic pressures in the frequency range from a few millihertz to a few hertz. As explained below, these sensors were conceived to...