Search by tag «Holography» 14 results

• Picture of the Week: A Holographic Prism

  The prism can be used to calibrate devices with angular scales. Beams produced by this prism went through liquid nitrogen. As it disperses them, they become clearly visible.

  25.09.2020

• ITMO University Researchers Create a Terahertz Holographic Spectrometer During Self-Isolation

  The pandemic and self-isolation have ruined plans of many scientists: the conferences are postponed, the publishing of articles is delayed, and many projects are frozen. However, research activities are taking place. For example, ITMO University scientists have created a terahertz holographic spectrometer that they need for studying vortex beams of electromagnetic radiation at home. This research is a part of developing new efficient technologies for wireless data transmission. ITMO.NEWS asked the creators of the device how they managed to make it during self-isolation.

  14.05.2020

• ITMO and St. Petersburg State University of Culture and Arts Innovate Cultural Heritage Preservation

  Working in cooperation with the St. Petersburg State University of Culture and Arts, ITMO University initiated an interdisciplinary project on applying image holography technologies to the field of culture and arts. Driving the cooperation is both universities’ ambition to develop novel approaches to preservation of information on cultural heritage objects using full-color analog pictorial holograms as an aesthetical storage medium.

  25.07.2019

• Scientists Develop New Analysis Method of Non-Linear Optical Properties

  Scientists from ITMO University in collaboration with their colleagues from National Taiwan Normal University have developed a high-sensitivity method of studying the non-linear optical properties of substances. Unlike other research in this area, this project uses a collimated (unfocused) laser beam, which allowed the researchers to decrease the power density applied to a sample, though at the price of loss of useful signal. Using a special procedure for recording holograms and processing images, as well as using a special computational modeling algorithm, they have been able to measure the properties of optically non-linear media despite a weak signal. The project opens up new possibilities for diagnostics of non-linear properties. Results of the research were published in Optics Letters.

  19.09.2018