Search by tag «Metamaterials» 50 results
Scientists Propose Tractor Beam Concept to Capture Particles Using Light
Physicists from ITMO University have developed a model of an optical tractor beam able to capture particles based on new artificial materials. Such a beam is capable of moving particles or cells towards the radiation source. The study showed that hyperbolic metasurfaces have great potential for experiments on the creation of the tractor beam, as well as for its practical applications. The results have been published in ACS Photonics.
27.11.2018
Physicists Discover New Way of Resonance Tuning for Nonlinear Optics
A research team from ITMO University and the Australian National University has discovered that different metasurfaces exhibit the same behavior provided a symmetry breaking is introduced to their unit cells (“meta-atoms”). Asymmetry of meta-atoms results in high-quality (high Q) resonances in the transmittance spectra of metasurfaces. Such resonances are capable of multiple amplification of external signals. By manipulating the asymmetry, scientists were able to control the resonances and thus a metasurface’s optical response, which is highly desirable for practical applications. The results of this research were published in Physical Review Letters.
14.11.2018
Scientists' New Image And Academic Mobility: Professor Pavel Belov's Take on Modern Science
Last week, a session of The Social project that brings together people from different professions who aim to learn new things took place in one of St. Petersburg's bars. The project was launched in Switzerland three years ago and now involves about 40,000 people in 12 countries. Its goal is de-virtualization of human communication via the concept of inclusiveness. The organizers invite people from different fields to participate in their meetups, so that the topics would not be limited to just professional interests only and the networking process would take place in a community that is interested in new ideas and trends of the future. At the recent session, Pavel Belov, Dean of Faculty of Physics and Engineering and Head of ITMO’s International Research Center for Nanophotonics and Metamaterials, gave an informal lecture in which he shared his opinions about modern science as seen from Russia.
31.10.2018
Faculty of Physics and Engineering Staff to Republish Legendary Soviet Physicist’s Works
‘The Unusual Laws of Refraction and Reflection’ is a science-pop book by Soviet physics luminary Robert Silin. In this oeuvre that used to be well-known to every Russian physics buff, Prof. Silin describes the laws that, despite only being discovered at the turn of the last century, have already entered the scientific day-to-day. The book was first sent to press more than 20 years ago in 1999 and is now being republished in a new-and-improved edition with updated terminology and expanded contents. ITMO University’s Faculty of Physics and Engineering staff were instrumental in bringing the book to the 21th century audience. They let ITMO.NEWS in on how the ‘renovation’ project took place and explained the importance of reminding the international scientific community about Russian physicists.
15.10.2018
Scientists Register Strong Toroidal Dipole Response In Wide Frequency Range
Physicists have managed to create an experimental structure with a strong toroidal dipole response of the electromagnetic field over a wide frequency range. This response is associated with a special configuration of electromagnetic currents causing high concentration of the field. A special dielectric metalattice was created to produce and measure the response. The results can be used to create non-scattering materials, as well as to effectively control electromagnetic fields. The research was published in Advanced Optical Materials.
25.07.2018
What to Expect from a Master’s Program at the Faculty of Physics and Engineering
This year, the Faculty of Physics and Engineering at ITMO University is accepting applications for its Master’s degree programs “Radiofrequency Systems and Devices” and “Nanophotonics and Metamaterials” which were launched the previous year. We spoke to students who enrolled last year to find out what to expect from Master’s studies at the faculty and what research students get to take part in.
13.06.2018
ITMO University Wins Most SPIE Scholarships in 2018
Every year students and staff of ITMO University are awarded scholarships by the International Society for Optical Engineering (SPIE). This year, five students representing the Terahertz Biomedicine and Metamaterials laboratories became the scholarship competition’s winners. ITMO University, therefore, has won the most spots, coming out ahead of the University of Arizona (four winners) and University of California (four winners). Read below to learn about the winners’ projects.
09.06.2018
Insights into Nanophotonics and Metamaterials from around the World
The third Summer School in Nanophotonics and Metamaterials has just ended at ITMO University. Over a week, participants listened to lectures, completed a project, shared ideas and established useful connections. To learn more about the Summer School, read our article.
08.06.2018
Physicist Yuri Kivshar on Russian Science, Career Management and Metaoptics
Seven years ago, ITMO University launched the Metamaterials Laboratory. It all began with a grant won by Yuri Kivshar, a world-class scientist and one of Russia’s top physicists. Since then, the university has also launched the Department, and later, the International Research Center of Nanophotonics and Metamaterials. Under Yuri Kivshar’s leadership, the center’s researchers were the first in the world to venture into a completely new field: dielectric nanophotonics, or, as the scientist calls it, “metaoptics”. ITMO.NEWS met with Yuri Kivshar during his latest visit to St. Petersburg to discuss his current work, the future of the most unorthodox field of nanophotonics, and why a scientist shouldn’t stick with the same field of study for their entire life.
11.05.2018
ITMO Researchers Develop Wireless Signal Transfer Method for MRI
Scientists from ITMO University are the first to prove the possibility of wireless signal transmission in magnetic resonance imaging. Moreover, the resulting images are of even better quality than those produced using the common method of signal transmission over radio-frequency cables. This technology has already passed the first clinical trials on volunteers at the Almazov National Medical Research Center in St. Petersburg. It also received an award by the American Physical Society. The results of the research were published in Magnetic Resonance in Medicine, one of the most reputable scientific journals in the field of medical MRI.
28.02.2018