Search by tag «Holographics» 9 results
How can we make a laser that will work effectively on low pump energy, be quite small and will allow dynamically changing the output radiation spectrum? Vladimir Borisov, a PhD student at ITMO’s Department of Photonics and Optical Information Technologies, has won a grant of the Russian Foundation for Basic Research for creating just such a laser. One of the advantages of the new device is that the resonator is placed in the active laser medium, which simplifies the design while changing the resonator itself; it is created by holographic grating and uses quantum dots as photon sources.
ITMO University, the Hellenic Institute of Holography and Gokhran Russia have collaborated on a unique collection of optoclones of unique historical treasures from the Russian Diamond Fund and the State Fund of Precious Metals and Stones. Preserved as holograms, these items have not lost a bit of their volume and luxury. Sergei Stafeev, the scientific curator of ITMO’s Museum of Optics, tells us how these copies were made and where they’ll be on display.
ITMO University’s Master's students Vladislav Slabov and Kirill Keller talk about the role of inkjet printing methods in their new research. The scientists have created a way to not only print chromatic holograms on any surface but also to create high-quality organic piezoelectric structures. The results of their research were published in Advanced Functional Materials and Applied Materials & Interfaces.
Researchers at ITMO University have unveiled a new approach to printing luminescent structures based on nanoparticle ink. The unique optical properties of the ink were achieved by means of europium-doped zirconia. Particles of this material were proven to be useful in manufacturing glowing holographic coatings with a high degree of protection. Notably, the developed approach enables the fabrication of custom holograms by means of a simple inkjet printer. The results of the research were published in RSC Nanoscale.
Scientists from ITMO University and the Tampere University of Technology have improved upon a method for computational processing of optical signals in lensless microscopes. The algorithms they developed have helped increase the resolution of images acquired from such microscopes. Results of their research have been published in The Optical Society’s (OSA) scientific journal Optica.
Scientists from ITMO University have developed a new method of creating holograms that makes use of a polymer nanocomposite material: the interference pattern is created by nanoparticles that move inside the material due to polymerization. The chemical process proceeds under the effect of light; as result, areas that have different optical properties emerge. According to the researchers, such holograms are a more effective method of protecting valuable documents and objects, and also a great technology for producing promotional merchandise.
The second day of ScienceFest was mostly dedicated to such subjects as space and robots. Among other topics, the public especially enjoyed the Teslatoriumtheater, the lecture by Oleg Yusupov and Ivan Unitskiy on phygital interfaces, as well as the presentation by Sergei Stafeev who gave a review on modern museums' new features from quite an original point of view.
Optical engineers from ITMO University in Saint Petersburg developed an express method for analyzing the distribution of particles in optically transparent media, based on correlation analysis of holograms. As a big part of the study, they created an algorithm capable of processing images in a few seconds. The new method can be applied to engineering devices for monitoring metal shavings in the engine oil, studying a plankton in water or tracking viruses in living cells. The work was published in Scientific Reports.
The final of the second round of the university league’s Science Slam took place on Friday. Six young scientists fought for the audience applauses as they explained their research in layman’s terms to the not so scientific audience. Based on the audience votes, the winner was the only girl in the competition, Alexandra Toropova, a Master’s student from the Department of Computer Photonics and Digital Video Processing. For those who missed it, here’s a brief description of what these six geniuses are creating and discovering.