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Programming Light on a Chip

  • Magazine Article
  • TBMG-34606
Published 2019-06-01 by Tech Briefs Media Group in United States

Microwave signals are ubiquitous in wireless communications but interact too weakly with photons. A technique was developed to fabricate high-performance optical microstructures using lithium niobate, a material with powerful electro-optic properties. The new integrated photonics platform can store light and electrically control its frequency (or color) in an integrated circuit. The platform draws inspiration from atomic systems and could have a wide range of applications including photonic quantum information processing, optical signal processing, and microwave photonics.

 
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Broadband 1.2- and 2.4-mm Gallium Nitride (GaN) Power Amplifier Designs

  • Magazine Article
  • TBMG-34526
Published 2019-06-01 by Tech Briefs Media Group in United States

The US Army Research Laboratory (ARL) has been working with Raytheon to design efficient, broadband, linear, high-power amplifiers and robust, broadband, low-noise amplifiers for future adaptive, multimodal radar systems. Raytheon has a high-performance, W-band, gallium nitride (GaN) fabrication process and a process design kit (PDK) that ARL used to design low-noise amplifiers, power amplifiers, and other circuits for future radar, communications, and sensor systems. After the first set of ARL and Raytheon designs was submitted for fabrication, test designs of broadband Class A/B power amplifiers were developed. While these designs did not get fabricated in the initial effort, they serve to demonstrate the performance, bandwidth, and capability of this GaN process and could potentially be fabricated in the future.

 
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Aerospace Work Platforms - More than Meets the Eye

Aerospace & Defense Technology: June 2019

  • Magazine Article
  • 19AERP06_13
Published 2019-06-01 by SAE International in United States

Today's work platforms are far more complex than the simple designs of the past.

For maintenance personnel in the aerospace industry to do their jobs effectively, they need to be able to get physically close to the equipment they are working on. This statement sounds obvious, but in order to meet this requirement, it is very important to utilize quality work platforms. Although most people are familiar with the basic uses of work platforms, there is not always much thought given to everything that goes into their design and fabrication.

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Electrical Characterization of Crystalline UO2, THO2 and U0.71TH0.29O2

Aerospace & Defense Technology: June 2019

  • Magazine Article
  • 19AERP06_08
Published 2019-06-01 by SAE International in United States

Evaluating the suitability of advanced alloys for use in uranium-based neutron detectors.

Tracking and identifying radiation sources in the age of nuclear proliferation and well-resourced non-state actors is a national priority. Current neutron detection methods favor large detector volumes and long data collection times. Additionally, portable neutron detection methods have persistent problems with low signal-to-noise (small pulse height) and require large applied voltages.

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Broadband 1.2- and 2.4-mm Gallium Nitride (GaN) Power Amplifier Designs

Aerospace & Defense Technology: June 2019

  • Magazine Article
  • 19AERP06_06
Published 2019-06-01 by SAE International in United States

The US Army Research Laboratory (ARL) has been working with Raytheon to design efficient, broadband, linear, highpower amplifiers and robust, broadband, low-noise amplifiers for future adaptive, multimodal radar systems. Raytheon has a high-performance, W-band, gallium nitride (GaN) fabrication process and a process design kit (PDK) that ARL used to design low-noise amplifiers, power amplifiers, and other circuits for future radar, communications, and sensor systems. After the first set of ARL and Raytheon designs was submitted for fabrication, test designs of broadband Class A/B power amplifiers were developed. While these designs did not get fabricated in the initial effort, they serve to demonstrate the performance, bandwidth, and capability of this GaN process and could potentially be fabricated in the future.

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Standardized Symbols for Electrical Circuit Diagrams

Truck and Bus Electrical Systems Committee
  • Ground Vehicle Standard
  • J2221_201905
  • Current
Published 2019-05-16 by SAE International in United States
This SAE Recommended Practice identifies graphic symbols used in electrical circuit diagrams. The symbols aid troubleshooting electrical systems.
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Lighting the Gas Monkey Garage

  • Magazine Article
  • TBMG-34423
Published 2019-05-01 by Tech Briefs Media Group in United States

Gas Monkey Garage (GMG) is arguably America's most recognized hot rod shop. Founded in 2004 by charismatic serial entrepreneur Richard Rawlings, the Dallas, Texas garage is a state-of-the-art restoration and fabrication operation, well-known for turning out stunningly restored, show-stopping rare cars and hot rod creations, all under the watchful eye of millions of TV viewers each week.

 

Industrial Blue Lasers

  • Magazine Article
  • TBMG-34415
Published 2019-05-01 by Tech Briefs Media Group in United States

Industrial lasers are integrated into manufacturing and fabrication facilities around the world. Every moment, there is an industrial laser somewhere that is cutting, etching, or welding. But the energy from traditional industrial lasers is not absorbed well by copper, so using them for copper processing has been slow and produced inferior quality.

 

Electron Beam Heating and Atomic Restructuring of Sapphire Surfaces

  • Magazine Article
  • TBMG-34396
Published 2019-05-01 by Tech Briefs Media Group in United States

NASA’s Langley Research Center has developed a new way to reduce the high-temperature heating requirement of sapphire substrates in wafer production. The growth of high-quality and single-crystal epitaxy layers on sapphires requires uniform and high-temperature heating to accommodate restructuring of the sapphire surface to be aluminum-terminated. These requirements (uniform heating and re-structuring of sapphire substrates) are challenging for high-yield and high-quality production. This innovation offers a new way to reduce the high-temperature heating requirement of sapphire substrates and at the same time create the morphological restructure of sapphire surface required.

 

Plastic Motor Vehicle Safety Glazing - Tolerances and Fabrication Details

Glazing Materials Standards Committee
  • Ground Vehicle Standard
  • J1691_201904
  • Current
Published 2019-04-11 by SAE International in United States
This SAE Recommended Practice is intended to cover plastic safety glazing for use in motor vehicles and motor vehicle equipment. Nominal specifications for thickness, flatness, curvature, size, and fabrication details are presented principally for the guidance of body engineers and designers. For additional information on plastic safety glazing materials for use in motor vehicles and motor vehicle equipment, please refer to SAE J673.
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