CPQM seminar: “TERAHERTZ TECHNOLOGIES IN BIOPHOTONICS” by Kirill I. Zaytsev:
When: April 4, 16:00
Where: Skoltech, E-B4-3006 (New Campus)
Abstract:
In this talk, we would consider modern research results in the area of terahertz (THz) biophotonics, including applications of THz spectroscopy and imaging in early non-invasive, least-invasive and intraoperative diagnosis of malignancies with different nosology and localization [1]. We would discuss original research results by the authors in THz dielectric spectroscopy of malignancies of the skin in vivo and the brain ex vivo.
Furthermore, we would analyze modern problems of THz technology, which restrain its transfer to a clinical practice [1], as well as original approaches for solving them; among them:
- novel modalities of THz imaging, which allows for overcoming the Abbe diffraction limit:
– the THz solid immersion microscopy,
– the THz scanning-probe microscopy relying on flexible sapphire fibers;
- hard microstructures sapphire waveguides (either photonic crystal / resonant or antiresonant) for the aim of THz wave delivery to hardly-accessible tissues and internal organs;
- plasmonic photoconductive antennas for THz-pulse generation under the femtosecond laser excitation, which yield up to ~103-times enhancement of the optical-to-THz-wave conversion efficiency;
- improvement of THz-wave penetration into tissues, as well as multimodal approaches for spectroscopy and imaging of tissues.
BIO:
Kirill I. Zaytsev graduated from Bauman Moscow State Technical University (BMSTU), Moscow, Russia, than graduated a PhD course at BMSTU, Moscow, Russia and received a degree of PhD in Engineering Sciences there. From his graduation till now he do research on the basis of his institute and from 2017 he is the Head of Laboratory at Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), Moscow, Russia. His research interests include optics and biophotonics, terahertz technology and terahertz pulsed spectroscopy, inverse ill-posed problems in optics, computational electrodynamics and optical engineering.