Marina Trad-Nery
28 July - 01 August 2025
Yerevan State University
Yerevan, Armenia
Events
Marina Trad-Nery
VIRGO, Côte d'Azur Observatory, France
Laser Stabilization for Gravitational Wave Detection
In this talk, I will give an overview of the challenges of laser power stabilization for Gravitational Wave Detectors. I will start with an introduction of how laser power noise couples to the detectors and what is the current requirements in power stability. Then I will present the current techniques for power stabilization and their limitations. Finally, I will focus on a non-demolition scheme for power stabilization which consists on sensing power noise via radiation pressure in a movable mirror.
About the Speaker
Marina Trad Nery is currently a Chair Professor Junior from CNRS at the Observatoire de la Côte d'Azur in Nice, France. She is a member of the Virgo and ET collaborations and work on lasers for future Gravitational Wave Detectors. She graduated from the State University of Campinas, UNICAMP, with a Bachelor Degree in Physics and worked on the field of cosmic rays with a monography with title "Study of the capacity of the Pierre Auger Observatory in detecting a dipolar anisotropy". During her master's studies, she worked with experimental physics, more specifically with optical parametric oscillators and with supercontinuum generation in PCF fibers.
She received her Master's Degree in Physics for the thesis "Construction of an optical parametric oscillator for trapping cold atoms", funded by the Scholarship of Productivity in Innovative Technological Development and Extension from CNPq. After her master's studies, she worked as an Intellectual Property Analyst at the Innovation Agency of the State University of Campinas, Brazil.
For her Ph.D. studies, she moved to Germany and worked as a research associate at the Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut) and Leibniz Universität Hannover, with a fellowship from the Marie Curie International Training Network. In 2020, she received her Doctoral of Natural Sciences Degree, and her thesis was honored by the Prize of the Leibniz Universitätsgesellschaft e. V. and by the 2020 GWIC-Braccini Thesis prize.
