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laser cooling News
Hamamatsu Edges Closer to Compact Laser Fusion Source
HAMAMATSU, Japan, Jan. 13, 2023 — Building on an existing multiyear R&D pursuit to establish technology that produces laser pulses at 250 J with a repetition rate of 10 Hz, Hamamatsu Photonics has developed a laser system that produced pulses with an energy of 100 J at a repetition rate of 10 Hz. The company said that it achieved the result by increasing the cooling capacity for the laser medium of its pulsed laser system, and by optimizing the output of the laser diode (LD) module for pumping. In a report detailing
ColdQuanta, Super.tech Merger Holds Industry Implications
BOULDER, Colo., Aug. 25, 2022 — Quantum company ColdQuanta acquired Chicago-based quantum startup Super.tech in a merger that combines ColdQuanta’s hardware capabilities with Super.tech’s software innovations. The merger, announced in May, is addressing pressing needs...
Ultracold Ions Tune Atomic Clockwork
BRAUNSCHWEIG, Germany, Dec. 30, 2021 — Researchers at the QUEST Institute at the Physikalisch-Technische Bundesanstalt (PTB) have cooled charged ions down to 200 μK. The team combined methods — its established laser cooling of coupled ions method, and those from quantum...
Opto-Refrigerative Tweezers Overcome Heat Damage to Particles
AUSTIN, Texas, July 12, 2021 — A tweak to optical tweezer technology introduced by researchers at the University of Texas at Austin fixes the problem of heat that affects the tool. The prolonged interaction with the laser beam can alter molecules and particles or damage them with...
Cold-Atom Source Brings Portable Quantum Devices Closer to Reality
WASHINGTON, D.C., June 22, 2021 — A high-flux and compact cold-atom source with low power consumption developed by an Oxford University-led research group is poised to enable devices such as space-based atomic clocks, improving quantum applications for communication and navigation....
Laser Cools Antimatter to Near Absolute Zero
VANCOUVER, British Columbia, April 1, 2021 — A custom-built laser has cooled antimatter to near absolute zero. The work, carried out by researchers with the CERN-based ALPHA collaboration, holds significant implications for the study of antimatter and its properties, and of foundational...
Miniaturization of Optical Components Enables Atom Cooling
GAITHERSBURG, Md., Jan. 26, 2021 — National Institute of Standards and Technology (NIST) researchers miniaturized the optical components necessary for atom cooling, achieving a step toward employing the technology on microchips. The research holds implications for atomic clocks,...
Photonics for Atomic Sensors
Jun 23, 2020 — Measurements of isolated atomic systems have provided reliable means to standardize time and frequency, determine fundamental constants with unprecedented precision, and measure small electromagnetic fields and inertial forces. In particular, atomic...
Laser-Cooled YbOH Molecules Could Support New Discoveries in Physics
CAMBRIDGE, Mass., May 15, 2020 — Researchers at Harvard University and Arizona State University have demonstrated laser cooling of polyatomic YbOH molecules, in a first step toward using these molecules to make precision measurements of the electron’s electric dipole moment...
Solid-State Optical Cryocooler Refrigerates an IR Sensor to 135 K
ALBUQUERQUE and LOS ALAMOS, N.M., June 22, 2018 — Researchers have demonstrated an all-solid-state optical cryocooler. The structure, which according to researchers is the first demonstration of laser cooling of a payload connected to a cooling crystal, could serve as a baseline for future optical...
Laser Cools Liquid for First Time
SEATTLE, Nov. 24, 2015 — A near-infrared laser has been used to cool water by more than 10 °C in what is believed to be the first instance of laser cooling in a liquid. A team of researchers from the University of Washington used a tunable CW laser to trap an...
Laser Technique Cools Broader Range of Elements
SOUTHAMPTON, England, Aug. 18, 2015 — A versatile laser cooling technique proposed 15 years ago now has partial experimental verification. In principle the technique could be used to cool a broader range of elements than is possible with current methods. Researchers at the University of...
Gooch & Housego Wins £364K to Develop 'Freeze Ray'
TORQUAY, England, July 30, 2015 — Gooch & Housego PLC has been awarded £364,000 (about $569,000) in U.K. funding to lead development of a miniature, high-power fiber system for laser cooling in practical environments. The Freeze-Ray project also involves e2v Technologies...
Narrower Lasers Could Yield Better Atomic Clocks
COPENHAGEN, Denmark, March 10, 2015 — Atomic clocks lose 1 second every 300 million years, but that level of accuracy isn’t good enough for researchers at the Niels Bohr Institute. For even better precision, they’ve devised a new way to narrow the linewidth of the red lasers...
Electro-Optical Modulators Empower Lasers for Science Applications
Mar 1, 2015 — Scientific fields such as atomic physics, chemistry, biology and even astronomy are inspired by the use of lasers and ultimately will benefit from the addition of electro-optical modulators. The fundamental research fields of laser spectroscopy and,...
Toschek to Receive 2015 Herbert Walther Award
WASHINGTON, Dec. 11, 2014 — Professor Dr. Peter E. Toschek of the Institute for Laser Physics at the Hamberg University in Germany will receive the 2015 Herbert Walther Award from The Optical Society (OSA) and Deutsche Physikalische Gesellschaft (DPG). Toschek will be...
Isaac Newton Medal Awarded to Laser Cooling Researcher
LONDON, July 3, 2014 — Dr. Deborah Jin has been recognized with the Institute of Physics’ Isaac Newton medal for her work on laser-cooled atoms. A researcher at the Joint Institute for Laboratory Astrophysics in Boulder, Colo., Jin works with ultra-cold Fermi gases....
Theoretical calculation proposes using heat to power QCLs
INNSBRUCK, Austria – Heat generated in a quantum cascade laser (QCL) – something that normally causes the lasing to turn off – could actually be used to power the device instead, according to a theoretical calculation developed at the University of...
Theorists Propose Using Heat to Power QCLs
INNSBRUCK, Austria, Nov. 14, 2012 — What if you could use the heat generated in a quantum cascade laser — something that normally causes the lasing to turn off — to power the device instead?
Training Light to Cool Materials
BETHLEHEM, Pa., Oct. 19, 2012 — By exploiting the resonance behaviors of opposing light-scattering phenomena, photons may one day be used to cool the materials through which they pass, rather than heating them. The breakthrough could lead to smaller, lighter and cheaper...
Giant Atoms Trapped with 90% Efficiency
ANN ARBOR, Mich., Dec. 29, 2011 — With an “egg carton” of laser light, physicists can trap giant Rydberg atoms with up to 90 percent efficiency. The achievement could advance computing and terahertz imaging and detection devices, among other applications.
Tiny Switch Flipped with Light
NEW HAVEN, Conn., Oct. 24, 2011 — Nanomechanical resonators can operate at amplitudes much higher than previously thought — a breakthrough in optomechanics that could have implications for future communications and sensing technologies. Yale engineers recently demonstrated...
Cold-Atom Lab in a Box
Jul 1, 2011 — Bringing cold atoms to the classroom gives undergraduate students a hands-on way to learn about physics – and could inspire lifetime careers using photonics to manipulate atoms. Bringing cutting-edge physics into the undergraduate classroom...
Lasers Cool, Control Molecules
NEW HAVEN, Conn., Sept. 22, 2010 — While laser cooling techniques that produce ultracold atoms have been around for decades, it has not extended to molecules because of their complex internal structure. Now physicists at Yale University are cooling molecules down to a temperature...
X-Rays, IR Light Pulses and Laser Cooling
WASHINGTON, DC, May 17, 2010 — Researchers from around the world will present the latest breakthroughs in electro-optics, innovative developments in laser science, and commercial applications in photonics at the 2010 Conference on Lasers and Electro-Optics/Quantum Electronics and...
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April 2024
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