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Laser Technology News

• Lasers used to cool GaAs substrates
  July 3, 2008--Photoluminescent upconversion experiments have confirmed that laser cooling techniques can be applied to semiconductors.
• Mobile lidar station measures large-scale wind fields
  July 3, 2008--Researchers at Ocean University in China have developed a mobile light-detection-and-ranging (lidar) station that improves the accuracy of wind measurements over large areas.
• Laser-based sensor detects explosives from 20 yards away
  June 26, 2008--Oak Ridge National Laboratory has demonstrated a super-sensitive explosives detector that combines an infrared quantum-cascade laser and photoacoustic spectroscopy.
• Dark-Energy Survey camera reaches milestone with immense lenses
  June 26, 2008--An international team constructing the Dark Energy Survey camera has produced some of the largest lens blanks in the world. The lenses have been shipped from the U.S. to France to be shaped and polished.
• A plus and a minus for EUV litho research
  June 25, 2008--Photoresists under development for next-generation lithography are twice as sensitive as previously believed. This finding, confirmed by scientists at the National Institute of Standards and Technology (NIST), means that the dose of extreme-ultraviolet (EUV) light required to expose a semiconductor wafer is only half of what was thought.
• German researchers achieve new record in ultrafast metrology: 80 attosecond pulses
  June 24, 2008--To observe the motion of electrons in atoms, ultrafast speeds have been achieved by a team of physicists of the "Munich-Centre for Advanced Photonics" (MAP). For the first time, scientists have advanced metrology into the temporal range below 100 attoseconds, by producing the first light pulses lasting approximately 80 attoseconds.
• Transisters use excitons to advance optical computing
  June 19, 2008--Researchers at the University of San Diego have created integrated circuits that use light instead of electrons to send signals.
• Inventor gets patent for optical access key
  June 18, 2008--Although modulated light is already a widely used way to convey information (for example in fiber-optic networks), an inventor in Marietta, PA has just obtained a United States patent that covers the use of "rapidly flickering lamps" such as LEDs or lasers to convey optical codes such as security codes.
• Light-based multi-touch interface works on curved surfaces
  June 18, 2008--With the introduction by Apple (Cupertino, CA) of the iPhone and iPod touch, as well as the MacBook Pro laptop computer, multi-touch interfaces have become big news.
• "Data Cave" creates 3D imagery on three walls
  June 16, 2008--Immersive stereoscopic 3D projection display installed by Mechdyne allows researchers to interact with data.