University of Utah physicists successfully controlled an electrical current using the "spin" within electrons - a step toward building an organic "spin transistor": a plastic semiconductor switch for future ultrafast computers and electronics.
Physicists at JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder, have demonstrated a powerful new technique that reveals hidden properties of ultracold atomic gases.
In a paper published in the July 17 issue of the journal Nature, UCSB physicists Max Hofheinz, John Martinis, and Andrew Cleland documented how they used a superconducting electronic circuit known as a Josephson phase qubit, developed in Martinis's lab, to controllably pump microwave photons, one at a time, into a superconducting microwave resonator.
Innolume, the leading provider of quantum dot (QD) laser diodes and modules covering the 1000 nm to 1320 nm optical spectrum, today announced that it secured a Series C round of financing for €8.6 million. The round was led by S-Group Capital Management Limited (SGCM) with Applied Ventures, LLC joining as a new investor.
Electronic communication is becoming more secure all over the world. Siemens IT Solutions and Services, Austrian Research Centers (ARC) and Graz University of Technology have joined forces to develop the first quantum cryptography chip for commercial use. The chip, which protects data by generating a completely random sequence of numbers from particles of light, replaces the currently used system of key distribution based on mathematical algorithms.
Scientists have developed electrically powered semiconductor laser diodes that operate at a shorter wavelength than any others used today. The lasers, described online this week in Nature Photonics ("A 342-nm ultraviolet AlGaN multiplequantum-well laser diode"), could be used for the next generation of optical storage systems following today's Blu-ray disks, and will have applications in biomedicine, materials processing and microchip manufacture.
Applied scientists at Harvard University in collaboration with researchers from Hamamatsu Photonics in Hamamatsu City, Japan, have demonstrated, for the first time, highly directional semiconductor lasers with a much smaller beam divergence than conventional ones. The innovation opens the door to a wide range of applications in photonics and communications. Harvard University has also filed a broad patent on the invention.
Laser technology has revolutionised the world of medicine in ways never before thought of. More and more often the scalpel is giving way to a new generation of lasers. Now the FAST-DOT project, backed by the EU with EUR 10.1 million in financing, is underway to develop a new line of lasers for biomedical applications.
Acoustic waves play many everyday roles - from communication between people to ultrasound imaging. Now the highest frequency acoustic waves in materials, with nearly atomic-scale wavelengths, promise to be useful probes of nanostructures such as LED lights.
"TIGA," the new high-tech imaging center at the University of Heidelberg founded in cooperation with the Japanese company Hamamatsu, provides deep insights: a high-tech robot makes it possible for the first time to automatically reproduce and evaluate tissue slices only micromillimeters thick - an important aid for researchers in understanding cancer or in following in detail the effect of treatment on cells and tissue.
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