FEMTO-ST
|
The superradiant laser lab at FEMTO-ST benefits from FEMTO-ST expertise in the development of ultra-stable frequency references and is part of the Oscillator-IMP, REFIMEVE+ and T-REFIMEVE equipex (phase-noise characterization of oscillators and ultra-stable frequency and time dissemination). The superradiant lab is dedicated to the development of a continuous superradiant laser based on cold Yb atoms for metrological applications.
We have an open PhD position. |
Team members
|
Bhagyashri Bidwai completed her master’s degree in Physics from Savitribai Phule Pune University and has gained research experience at the Raman Research Institute (RRI) in Bangalore, where she worked in the QuMiX Lab on Raman-driven spin noise spectroscopy (RDSNS) and quantum sensing in ultracold potassium (³⁹K) and thermal rubidium (⁸⁷Rb) atomic systems. Her work involved precision measurements, laser cooling and trapping techniques, and experimental studies in ultracold atom physics.
Her PhD work focuses on the experimental study of a continuously operating superradiant laser based on ultracold ytterbium atoms coupled to an optical cavity. A key aspect of the project involves the atom transport system, where atoms are transferred from a magneto-optical trap (MOT) into the cavity region and prepared for interaction on the ¹S₀ → ³P₀ optical clock transition. The objective is to achieve efficient atom–cavity coupling enabling continuous coherent emission from the atomic ensemble and to investigate cavity-assisted collective emission as a route toward ultra-stable optical frequency references. Contact: [email protected] |
|
Marion Delehaye does time and frequency metrology with cold atoms. After some research experience in Melbourne with Chris Vale, she did her PhD in 2016 at ENS Paris with Christophe Salomon and Frederic Chevy on the topic of mixtures of ultracold Bose and Fermi gases. She then worked as a postdoc on a compact single-ion clock with Clément Lacroûte and was recruited by CNRS in 2018 to start an ytterbium superradiant laser experiment at FEMTO-ST, Besançon, France.
Contact: [email protected] |
|
C. Lacroûte is a CNRS researcher and a member of the Oscillators, Clocks, Metrology and Systems team of the Time and Frequency department within the FEMTO-ST institute in Besançon. His research interests include light-matter interaction, time and frequency metrology and atomic clocks. Current researches include the realization and characterization of ultra-stable optical frequency references and the development of a single-ion optical clock.
Contact: [email protected] |
