Laser | sciencenewsnet.in

Laser allows solid-state refrigeration of a semiconductor material

June 23, 2020 sarah Jonas Laser, Laser Science, Materials Science, Semiconductor, Semiconductors

A team from the University of Washington used an infrared laser to cool a solid semiconductor by at least 20 degrees C, or 36 F, below room temperature, as they report in a paper published June 23 in Nature Communications.

Research Results

New Therapeutic Possibilities on the Horizon—Targeted Protein Destruction Made Better

June 1, 2020 sarah Jonas Infrared, Laser, Protein

Scientists open doors to new treatment possibilities by using a metal complex to accelerate serum albumin protein destruction with infrared laser beams

Research Results

Next-Gen Laser Facilities Look to Usher in New Era of Relativistic Plasmas Research

May 26, 2020 sarah Jonas Laser, Lawrence Berkeley National Laboratory, Michigan State University, Physics, plasma, plasma physics, University of California, San Diego, University Of Michigan

Chirped pulse amplification increases the strength of laser pulses in many of today’s highest-powered research lasers, and as next-generation laser facilities look to push beam power, physicists expect a new era for studying plasmas. Researchers have released a study in Physics of Plasmas taking stock of what upcoming high-power laser capabilities are poised to teach us about relativistic plasmas subjected to strong-field quantum electrodynamics processes and introducing the physics of relativistic plasma in supercritical fields.

Announcement

Keeping up with the Curies: Husband-and-wife team wins prestigious physics award

January 27, 2020 sarah Jonas 0 Comments Imaging, Laser, Physics

Henry Kapteyn and Margaret Murnane have won this year’s Benjamin Franklin Medal.

Research Results

Laser Pulse Creates Frequency Doubling in Amorphous Dielectric Material

January 6, 2020 sarah Jonas 0 Comments Laser, nanotechnology, Optical

Researchers have demonstrated a new all-optical technique for creating robust second-order nonlinear effects in materials that don’t normally support them. Using a laser pulse fired at an array of gold triangles on a titanium dioxide (TiO2) slab, the researchers created excited electrons that briefly doubled the frequency of a beam from a second laser as it bounced off the amorphous TiO2 slab.

Research Results

Lasers Learn to Accurately Spot Space Junk

December 23, 2019 sarah Jonas 0 Comments Laser, Neural Networks, Space Junk, Star Wars

Scientists have developed space junk identification systems, but it has proven tricky to pinpoint the swift, small specks of space litter. A unique set of algorithms for laser ranging telescopes, described in the Journal of Laser Applications, by AIP Publishing, has significantly improving the success rate of space debris detection.

Research Results

First field measurements of laughing gas isotopes

December 5, 2019 sarah Jonas 0 Comments Isotopes, Laser, Spectrometer

Thanks to a newly developed laser spectrometer, Empa researchers can for the first time show which processes in grassland lead to nitrous oxide emissions. The aim is to reduce emissions of this potent greenhouse gas by gaining a better understanding of the processes taking place in the soil.

Feature Expert

Meet the Director: Mike Dunne

October 1, 2019 sarah Jonas 0 Comments Laser, Light Source, user facility, X-rays

This is part of a continuing profile series on the directors of the Department of Energy (DOE) Office of Science user facilities.