All commercially available camera systems have lenses (and internal geometries) that cannot perfectly refract light waves and refocus them onto a two-dimensional (2D) image sensor. This means that all digital images contain elements of distortion and thus are not a true representation of the real world.
Towards Greater Sensitivity: A Brief FTIR and Infrared-Based Cavity Ring Down Spectroscopy Comparative Study
Cavity Ring-Down spectroscopy (CRDS) is a newer IR absorption-based technique made possible by the use of tunable pulsed lasers. Rather than using a broadband (blackbody) emitter as is done with traditional IR techniques, a pulsed laser is tuned across wavelengths into an optical cavity.
Ellipsometry measures the amplitude ratio and the phase difference between polarized light reflected from the surface of a film and determines the refractive index or thickness by fitting the experimental data to an optical model that represents an approximated sample structure.
Briefs RF & Microwave Electronics
Synthetic Aperture Radar images are a powerful tool for studying the Earth’s surface. They are radar signals generated by an imaging system mounted on a platform such as an aircraft or satellite. As the platform moves, the system emits sequentially high-power electromagnetic waves through its antenna.
The project aims to explore the possibility of all-weather secure quantum communication using macroscopic quantum states of light.
ESA’s Euclid spacecraft lifted off on a SpaceX Falcon 9 rocket from Cape Canaveral Space Force Station, Florida, on July 1, 2023. The successful launch marks the...
The fundamental goal of this research is to build from a broad set of experimental and theoretical data to a narrower set of scaling relations, heuristics, and trends that provide a roadmap for understanding laser ablation across relevant regimes.
The James Webb Space Telescope (JWST) has four infrared cameras to view the stars.
INSIDER Sensors/Data Acquisition
The Advanced Missile Signature Center of the 718th Test Squadron, 804th Test Group, Arnold Engineering Development Complex (AEDC), has been helping the Department of...
INSIDER RF & Microwave Electronics
The Air Force Research Laboratory (AFRL) Directed Energy Directorate recently signed a five-year Strategic Education Partnership Agreement (EPA) with New Mexico State...
INSIDER Test & Measurement
During a multi-service exercise, the U.S. Army Engineer Research and Development Center (ERDC) Cold Regions Research and Engineering Laboratory (CRREL) successfully demonstrated a...
INSIDER Sensors/Data Acquisition
Working together with a local business and academic professionals at the University of Tennessee Space Institute, Arnold Engineering Development Complex (AEDC) team members at...
Although a vast majority of fiber optic strain sensors use single mode fiber, multimode fiber has a higher nonlinear threshold that enables higher light levels and lower noise.
Through a Small Business Innovative Research contract awarded to MetroLaser, Inc., by the U.S. Navy, a system is being developed to measure the gas velocity of engine exhaust to...
Mounted armored vehicles such as the Bradley have long been used as heavy weapons platforms with long range sensors to hunt targets and provide armored transportation to...
See why the military is trying to understand the chaotic evolutionary development of infrared (IR) systems
INSIDER Electronics & Computers
Lockheed Martin received a $102 million contract award to upgrade 25 of Egypt’s AH-64D Apaches to the E-model version of the aircraft. This modernization for the Egyptian...
Three University of Arkansas researchers — electrical engineering professor Shui-Qing “Fisher” Yu, Distinguished Professor Greg Salamo, and Jin Hu, assistant...
With the addition of sensors and enhanced communication tools, providing lightweight, portable power has become even more challenging. Army-funded research demonstrated a new...
Briefs Sensors/Data Acquisition
Nonlinear Effects in Transformation Optics-Based Metamaterial Shields for Counter Directed Energy Weapon Defense
Applying an iterative solution to the Maxwell equations may accommodate the nonlinear effects produced by directed energy weapons.
Application Briefs Communications
pureLiFi has announced a new deal to supply the US Army Europe and Africa with Kitefin™, a next generation optical wireless communication system
Briefs Unmanned Systems
The global proliferation of directed energy weapon technology presents a new threat for the United States.
Products Test & Measurement
Coaxial connectors, tactical servers, test benches, surge protectors, and more.
U.S. Naval Research Laboratory engineers recently demonstrated Hybrid Tiger, an electric unmanned aerial vehicle (UAV) with multi-day endurance flight capability. The team integrated...
A Comparative Evaluation of the Detection and Tracking Capability Between Novel Event-Based and Conventional Frame-Based Sensors
This research establishes a fundamental understanding of the characteristics of event-based sensors.
Characterization of Turbulent Unsteady Separation Using Photonic Micro-Skin Friction and Wall Pressure Sensors
Learn about a photonic skin friction and wall pressure sensor.
A new way of assembling individual nanostructures will facilitate better design principles for plasmonic photonic devices.
An Ultrafast Testbed for Comprehensive Characterization of Photonics, Electronic, and Optoelectronic Properties of Integrated Nanophotonic Structures
High-speed testing technology will enable advances such as new digital signal processing and computing platforms in the optical domain.
Atomistic- and Meso-Scale Computational Simulations for Developing Multi-Timescale Theory for Radiation Degradation in Electronic and Optoelectronic Devices
One particular semiconductor, gallium arsenide (GaAs), has received considerable attention due to its potential electronic applications.