2023 Spring Physics Colloquium Series: Prof. Alexi V. Sokolov

Wednesday, February 15, 2023
3:35 pm - 5:00 pm
Baylor Sciences Building, Room E.231
2023 Spring Physics Colloquium Series

Prof. Alexi V. Sokolov
Professor of Physics & Astronomy
Stephen E. Harris Professor of Quantum Optics
Institute for Quantum Science and Engineering
Texas A&M University
College Station, TX, USA

Laser-spectroscopic tools for quantum sensing in nano-biophotonics

Biophotonics is a vibrant interdisciplinary field exploring the interaction between light and biological materials such as sub-cellular structures and molecules in living organisms. Biophotonics research leads to applications in agriculture & life sciences and produces tools for medical diagnostics and therapies. Within this broad field, we have recently made advances in ultrasensitive Raman-spectroscopic probing of various biosamples. Our approach is based on laser spectroscopy aided by plasmonic nanoantennas, as in tip-enhanced Raman spectroscopy (TERS). An additional enhancement in sensitivity and speed is obtained by employing quantum molecular coherence and utilizing the femtosecond adaptive spectroscopic technique (FAST) for coherent anti-Stokes Raman scattering (CARS). The combined approach allows nondestructive label-free biosensing with molecular-level sensitivity and with spatial resolution down to a fraction of a nanometer.

For more information contact: Dr. BFL Ward, (254) 710-4878