A new high-power laser system generates ultrashort pulses of light covering a large share of the mid-infrared spectrum.
An international group of physicists managed for the first time to experimentally observe the transition between two different states of matter: propagating polariton-solitons and a Bose-Einstein condensate. Furthermore, physicists developed a theoretical model to explain such transitions and found a way to switch between the different states by changing the laser pumping power in the polariton formation process. The results are published in Physical Review Letters.
Researchers of Peter the Great St. Petersburg Polytechnic University (SPbPU) within the framework of the Project 5-100 developed a unique method of immune diseases diagnosing before the symptoms appear. Scientists proposed a laser-correlation spectroscopic technique (also called dynamic light scattering) for studying the immune response in body fluids, for example, in saliva.
Using a homemade, high-tech microscope, scientists have revealed how a cancer-causing virus anchors itself to our DNA. That discovery could pave the way for doctors to cure incurable diseases by flushing out viruses, including HPV and Epstein-Barr, that now permanently embed themselves in our cells.
NIM scientists from Ludwig-Maximilians-Universitaet (LMU) in Munich have found a new effect regarding the optical excitation of charge carriers in a solar semiconductor. It could facilitate the utilization of infrared light, which is normally lost in solar devices.
The insect moves droplet of saliva in and out of its mouth to promote evaporation and lower body temperature, according to study by researchers in Brazil.
ICFO researchers, in collaboration with MIT and University of Minho, are able to confine and guide light down to a space of 1-atom thick in dimension. Graphene and 2-D materials have been key ingredients in the development of this atom-scale Lego that can channel light. The study has been published in Science.
Collaborative research team of Prof. Jun Takeda and Associate Prof. Ikufumi Katayama in the laboratory of Yokohama National University (YNU) and Nippon Telegraph and Telephone (NTT) successfully observed petahertz (PHz: 1015 of a hertz) electron oscillation. The periodic electron oscillations of 667-383 attoseconds (as: 10-18 of a second) is the fastest that has ever been measured in the direct time-dependent spectroscopy in solid-state material.
Seoul National University has created a synthesis method to make optically active and chiral gold nanoparticles using amino acids and peptides for the first time. Many chemicals significant to life have mirror-imaged twins and such characteristics are conventionally called as chirality. This study describes how the chirality, typically observed in organic molecules, can be extended to three-dimensional metallic nanostructures. The research will be published in Nature and featured in its cover.
Together with colleagues from Munich and Mainz, researchers at the Physikalisch-Technische Bundesanstalt (PTB) have performed the first-ever optical measurements of some important properties of the low-energy state of the Th-229 nucleus. In this way, a laser excitation of the atomic nucleus can be monitored, thus allowing an optical nuclear clock to be realized that 'ticks' more precisely than present-day atomic clocks. The scientists have reported their results in the current issue of Nature.