Keyword: Light emitting diodes (LEDs)

Briefs: Electronics & Computers
One particular semiconductor, gallium arsenide (GaAs), has received considerable attention due to its potential electronic applications.
Briefs: Test & Measurement

In the study of combustion characteristics of liquid rocket fuels, it is customary to either study the combustion of liquid fuel droplets...

Articles: Photonics/Optics

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...

Articles: Data Acquisition

Military electronics continue to push the performance envelope in all directions. Each new system design faces the same challenges: the need for more processing power, tighter specs, and...

Briefs: Manufacturing & Prototyping

Stretchable electronic devices, including solar cells, light-emitting diodes, batteries, and textile supercapacitors, have been developed to retain...

Articles: Photonics/Optics

Modern warfare often involves poorly defined battle lines accompanied by multilevel fire support systems that can deliver firepower with high precision and devastating lethality from a long...

Articles: Test & Measurement

In 2008, 4RF Communications started development of a new range of radio products to augment their existing point-to-point, long-range wireless link product....

Briefs: Materials

One-dimensional nanowires are of increasing interest due to their size, physical properties, and other applications in opto-electronics. For example, nanowires have already been used in...

Articles: Electronics & Computers

Membrane switches are known for standing up to tough environmental conditions. Flexible and durable, the membrane switch can be customized with embossing, backlighting, sealing, and...

Briefs: Medical

Adaptive optics (AO) has become increasingly utilized in research ophthalmic diagnostic instruments since their first use nearly ten years ago. Integration of...

Briefs: Manufacturing & Prototyping

The process to prepare single-wall carbon nanotube (SWCNT) solutions with a good degree of dispersion of individually isolated SWCNTs and very thin SWCNT bundles was...

Briefs: Photonics/Optics
Surface Plasmon-Enhanced Si:Er Infrared Light-Emitting Diodes

Plasmons are collective oscillations of the free electrons in a metal or an ionized gas. Plasmons dominate the optical properties of noble-metal nanoparticles, which enables a variety of applications including electromagnetic energy transport at nanoscale dimensions, single-molecule...

Briefs: Photonics/Optics
AlInGaN Bandgap and Doping Engineering for Visible Laser Diodes

There is a great need to develop chip-scale visible lasers for many applications, including laser sight, environmental monitoring, and compact pumping sources for ultra-short laser pulse generation, high-luminous full-color displays, new-generation solid-state lighting, etc. The...

Articles: RF & Microwave Electronics

Unmanned aerial vehicles, or UAVs, are used in many applications to gather intelligence without risking human lives. These aircraft, however, have limited flight time because of their reconnaissance...

Briefs: Photonics/Optics
Development of GaN-Based Nanostructure Photon Emitters

Gallium nitride (GaN)-based wide bandgap semiconductors are very important material systems for fabrication of photon emitters in a wide range of wavelengths. In particular, the light emitters in ultraviolet (UV), blue, and green wavelengths have been developed and demonstrated in recent...

Briefs: Electronics & Computers

Low-power sensors are important to the Army for monitoring infrastructure of the lifecycle of an operation. Isotope batteries can power and operate compact, low-power sensors for...

Briefs: Physical Sciences

Long-term stress testing of silicon carbide (SiC) semiconductor devices is required to determine suitability for power electronics applications. During testing, preventable...

Briefs: Photonics/Optics

A study was performed to evaluate the performance of a recently developed type of Fe-based spin-light-emitting diodes (spin-LEDs) that incorporate wetting layers (WLs). [The term "wetting...

Briefs: Photonics/Optics

Bipolar cascade (BC) vertical-cavity surface emitting lasers (VCSELs) of a type intended specifically for use in radio-frequency (RF)/photonic links have been demonstrated. As used here, "RF/photonic link"...

Briefs: Electronics & Computers

A three-year research project encompassed multiple studies of (1) polymer semiconductors that exhibit relatively high electric-charge- carrier mobilities and (2) applications of these...

Briefs: Electronics & Computers

Light-emitting triodes (LETs) have been the focus of a program of research with a goal of increasing the quantum efficiencies of ultraviolet-lightemitting devices implemented in the...

Briefs: Materials

Silicone-rubber surfaces microscopically textured in such a manner as to render them ultra-hydrophobic have been fabricated by a method in which breath figures are utilized....

Briefs: Electronics & Computers

Experiments have shown that when a miniature semiconductor diode floats in an aqueous solution and an alternating electric field is applied, (1) the diode rectifies the alternating potential...