Record-breaking laser link could help us test whether Einstein was right — ScienceDaily

Scientists from the International Centre for Radio Astronomy Research (ICRAR) and The University of Western Australia (UWA) have set a world record for the most stable transmission of a laser signal through the atmosphere. In a study published today in the journal Nature Communications, Australian researchers teamed up with researchers from the French National Centre […]

Record-breaking laser link could help us test whether Einstein was right

IMAGE: UWA’s rooftop observatory. view more  Credit: ICRAR Scientists from the International Centre for Radio Astronomy Research (ICRAR) and The University of Western Australia (UWA) have set a world record for the most stable transmission of a laser signal through the atmosphere. In a study published today in the journal Nature Communications, Australian researchers teamed up with researchers […]

Miniaturizing laser cooling — ScienceDaily

It’s cool to be small. Scientists at the National Institute of Standards and Technology (NIST) have miniaturized the optical components required to cool atoms down to a few thousandths of a degree above absolute zero, the first step in employing them on microchips to drive a new generation of super-accurate atomic clocks, enable navigation without […]

Bringing atoms to a standstill: Researchers miniaturize laser cooling

Illustration of a new optical system to miniaturize the laser cooling of atoms, a key step towards cooling atoms on a microchip. A beam of laser light is launched from a photonic integrated circuit (PIC), aided by an element called an extreme mode converter (EMC) that greatly expands the beam. The beam then strikes a […]

Forensic chemist’s laser technique distinguishes human and animal blood

Igor Lednev holds a prototype of a scanner that can be used by law enforcement to analyze biological stains at crime scenes. Credit: University at Albany New research published by forensic chemist Igor Lednev could soon offer law enforcement another valuable crime scene tool—a quick and accurate way to distinguish human blood from animal blood. […]

Laser technology: New trick for infrared laser pulses

IMAGE: Gottfried Strasser, Benedikt Schwarz, Johannes Hillbrand and Nikola Opacak view more  Credit: TU Wien Ordinary solid-state lasers, as used in laser pointers, generate light in the visible range. For many applications, however, such as the detection of molecules, radiation in the mid-infrared range is needed. Such infrared lasers are much more difficult to manufacture, especially […]

Scientists propose to make a laser scalpel with a ‘curved’ blade

Scientists from Tomsk Polytechnic University and Saratov State University teamed up with colleagues from Taiwan and proposed to make a laser ‘blade’ for a medical scalpel with a specified curved shape using a photonic ‘hook’. Currently there are laser scalpels only with an axisymmetric focus area, i.e., with a cylindrical blade. According to scientists, changing […]

Accelerator makes cross-country trek to enable laser upgrade

Thomas Jefferson National Accelerator Facility has shipped the final new section of accelerator that it has built for an upgrade of the Linac Coherent Light Source (LCLS). The section of accelerator, called a cryomodule, has begun a cross-country road trip to DOE’s SLAC National Accelerator Laboratory, where it will be installed in LCLS-II, the world’s […]

Earth is fighting a laser duel with the exploding Carina Nebula

Four orange laser beams blaze through the Milky Way while an angry purple nebula transfixes us with its death-stare. Happily (or sadly, depending on how much news you’ve consumed this week), Earth is not doomed; in fact, it’s an Earthly telescope that’s launching the lasers in this epic image from the European Southern Observatory (ESO). […]