Search by tag «Metamaterials» 40 results
The International Conference on Metamaterials and Nanophotonics METANANO 2018 will be held for the third time on September 17-21 in Sochi. Scientists from all around the world will come together to discuss the latest scientific discoveries and achievements; approximately half of the event’s guests will come from foreign universities and research centers. The METANANO conference is becoming increasingly popular due to its large scientific scope. This leads to more interdisciplinary research and, therefore, more practical applications are made for theoretical inventions.
Optics & Photonics News journal has recognised a recent study on three-dimensional topological insulators as one of the year’s most promising advances in photonics. These structures are capable of controlling light without any losses caused by absorption and defects of material, showing great potential for application in communication networks, antennas and optical computers.
Alena Shchelokova, Presidential Scholarship Recipient: To Achieve Something, You Have to Get Over Yourself
Over the course of one’s life, everyone has to make decisions that can change its course and open new opportunities. Alena Shchelokova, PhD student at ITMO’s Department of Nanophotonics and Metamaterials did not shy away from leaving her home country for St. Petersburg, focusing on a new field of science, participating in a contest and going to Australia to conduct research. The young scientist spoke about how leaving one’s comfort zone can become a h abit and wh y it is essential to know your work’s worth and take pride in it.
At the COMSOL Day in Moscow, head of ITMO’s International Research Laboratory of Nano-Opto-Mechanics Alexander Shalin gave a talk on the new algorithms for multiphysics modeling and optical power calculations using COMSOL Multiphysics software. He demonstrated how the program can be used to model the excitement of unidirectional surface plasmon-polaritons and their optomechanical effect on nano-objects on metal surfaces. Shalin’s team uses these methods to acquire fundamental results in optomechanics and improve the qualities of such technologies as tractor beams, optical trapping, positioning of nanoparticles and other.
Physicists from ITMO University, for the first time, theoretically predicted and experimentally demonstrated a method for effectively controlling the propagation of surface waves using an ultra-compact dielectric nanoantenna. In the experiment, the researchers were able to achieve directional launching of surface plasmons. Moreover, the surface plasmons, having wavelengths which differing by only 10 nanometers, spread out in opposite directions. This system allows for the creation of an effective, inexpensive and much more compact demultiplexer, which could be used in the future in devices for optical information processing on a chip. This study was published in the journal Laser & Photonics Reviews.
A project by scientists from ITMO’s Department of Nanophotonics and Metamaterials that aims to improve the speed and quality of MRI scanning has won the first place in a competition for innovative projects in science and higher education. The competition was organized by the administration of St. Petersburg. Winners were announced at the St. Petersburg International Innovation Forum (SPIIF). The scientists’ invention shortens the time needed to perform an MRI scan by half and makes it cheaper.
Alexey Slobozhanyuk, a postgraduate student and research associate at ITMO University’s International Laboratory “Applied Radioengineering”, has received an award from the IEEE’s Antennas and Propagation Society. Such recognition provides many opportunities for work in research institutes all over the world, yet, the winner says, he wants to give back to his alma mater and his country. In an interview with ITMO.NEWS, Alexey speaks about his working process, how a scientist can remain enthusiastic and not get tired of work, what makes research important and relevant and why there are no stupid questions in science.
The recent review by members of ITMO’s International Research Center for Nanophotonics and Metamaterials and their foreign colleagues is a detailed classification of the latest results in the field of creating light-adjusted nanostructures from different materials. Such nanostructures and the respective methods for controlling light can have a wide application in recording optical information and ultrafast processing of signals. The report will be published in the annual release of the Laser&Photonics Reviews magazine
Research in the field of topological insulators is most promising, as it has a wide range of applications. An international research team that includes scientists from ITMO University has recently described the physics of 3D topological insulators in an article published in the Nature Photonics journal. In such systems, photons start to behave as electrons, thus acquiring unique properties. Such systems have great potential for practical application in development of optical chips, stable multichannel communication systems and other optical electronic systems.
Scientists from the Netherlands and Russia designed and tested a new metasurface-based technology for enhancing the local sensitivity of MRI scanners on human test subjects for the first time. The metasurface consists of thin resonant strips arranged periodically. Placed under a patient's head, it provides much higher image quality from the local brain region. The results, published in Scientific Reports, show that the use of metasurfaces can potentially reduce image acquisition time, make the procedure more comfortable for patients and acquire higher resolution images to allow diseases to be diagnosed at an earlier stage.