Author: fvernotte
24 months post-doctoral researcher / Research engineer (M/F) in physics and optoelectronics (LPL, USPN, Villetaneuse, France)
The candidate will be part of the Embedded Metrology team of the Metrology, Molecule and Fundamental Tests axis of the Laser Physics Laboratory (UMR7538). He/She will work under the supervision of Vincent Roncin (MCF, HDR) and Frédéric Du-Burck (Pr Emerite) as part of the BRIOCHE project (ANR ASTRID 2024-2027 funding), the aim of which is to study, produce and characterize a transportable 1.5 µm frequency reference for on-board metrology instrumentation applications.
The candidate will be responsible for managing the project and organizing all the experimental studies involved:
- Progress on two prototypes of transportable metrological references produced in collaboration with
project partner Silentsys, - Improvement of noise rejection techniques for the detection of weak signals in Acetylene
spectroscopy, - Study of an original technique for detecting saturated absorption signals in interference-insensitive
fibered devices.
Closing date for the receipt of applications: 30/10/2024
12 months research engineer in physics and optoelectronics (M/F) – Project TranStab (LPL, USPN, Villetaneuse, France)
The TranStab project (supported by ANR) brings together two academic laboratories (LPL/CNRS-USPN and Institut FOTON/CNRS-UR) and an industrial company (Thales TRT) over a three-year period to design and demonstrate compact devices for transferring stability from an optical frequency reference at 1.5 µm to wavelengths of interest ranging from the near IR to the visible. The aim is to meet the growing need for stable laser sources in both research and industry for applications in high-sensitivity detection and quantum technologies.
The candidate will be part of the Embedded Metrology team of the Metrology, Molecule and Fundamental Tests division of the Laser Physics Laboratory (UMR7538). He/she will work under the supervision of Vincent Roncin (MCF, HDR) and Frédéric Du-Burck (Pr Emeritus) as part of the TranStab project (ANR 2024-2027 funding).
The candidate will be responsible for monitoring the project and organizing all experimental developments:
- Production of prototype cavities using the two architectures described above,
- Characterization of their metrological performance.
Closing date for the receipt of applications: 15/01/2025
AG FIRST-TF 2024
The FIRST-TF research federation (Laboratory of Escellence) and the REFIMEVE French Research Infrastucure, are joining together this year for organizing 3 events important for the french Time and Frequency community: their respective General Assemblies, and a workshop on precision synchronization and networks.
These events will be the opportunity for a vast community to network, have scientific exchanges and get the latest informations about FIRST-TF and REFIMEVE.
All the events will take place at Institut Galilée, on the Université Sorbone Paris Nord campus in Villetaneuse.
The dates are the following:
- September 30, 2024, afternoon: lab visits at the Laboratoire de Physique des Lasers,
- October 1, 2024: General Assembly of FIRST-TF
- October 2, 2024: Workshop on “Precision Synchronization and networks”
- 0ctobre 3, 2024: General Assembly of REFIMEVE
Lunches for the 1st, 2nd and 3rd of October are included in the organization. Dinners for the 1st and 2nd of October evening will be organized as joint social events.
Registration is free, but mandatory, for members of structures affiliated to FIRST-TF, REFIMEVE, as well as for invited guests, on this link: https://firsttfrefimeve.sciencesconf.org/
Electronics Research Engineer position at the ARTEMIS laboratory of the Côte d’Azur Observatory
The work will focus on electronics (analog and digital) to be developed for the LISA and Virgo projects for interferometric detection of gravitational waves, and other experimental activities of the ARTEMIS laboratory.
More details: Choose position n# 40 on the CNRS job/competition website.
SILENTSYS is hiring
Postdoctoral researcher position in Gravitational Wave Data Analysis, Royal Observatory of Belgium
The gravitational-wave (GW) group of the University of Louvain (UCLouvain, Belgium), hosted at the Centre for Cosmology, Particle Physics and Phenomenology (CP3) of the Research Institute in Mathematics and Physics (IRMP), and the ‘‘Time and Ionosphere” group of the Royal Observatory of Belgium (ROB) are welcoming applications for a postdoctoral researcher position in gravitational-wave data analysis of the LIGO-Virgo-Kagra detectors and Global Navigation Satellite System (GNSS). Applications must include a curriculum vitae, a personal motivation letter, and at least three recommendation letters from senior scientists. Applications must be submitted on-line, by 23 June 2024, at: https://cp3.irmp.ucl.ac.be/jobs/102. Applicants should hold, by the time of the start of the appointment, a PhD in physics and they should demonstrate a strong interest and motivation in fundamental physics research. Additionally, they should not have lived or carried out their main activity (work, study, etc.) in Belgium for more than 24 months in the three years prior to the appointment start date. The position will remain open after the first deadline indicated above until a suitable candidate is found.
Applications before June 23, 2024
Postdoc or engineer position for LISA data preprocessing at SYRTE, Paris
The LISA (Laser Interferometer Space Antenna) space mission will allow the detection of low frequency gravitational waves. In this project, we will develop new methods to reduce various noises in the LISA data efficiently in order to detect gravitational waves and to extract scientific results for various types of sources. This position is devoted either to a researcher or to a software engineer. Strong skills in software development, data analysis, and numerical calculations are required. In addition, knowledge of the LISA mission and of its instruments will be favoured. This project will be conducted within the “Theory and metrology” group at SYRTE.
Starting date:
Duration: 1 year ( )
CCTF capacity building activity on resource sharing
We are happy to inform you that the CCTF capacity building activity on resource sharing to improve national and international timekeeping has started!
Following the CCTF recommendations, with the support of the IEEE UFFC society and together with a secondee at the BIPM, Dr Bharath Vattikonda from NPL India, the first courses in Time and Frequency are available on the BIPM e-learning platform. https://e-learning.bipm.org/
1) Course on TIME TRANSFER THROUGH GNSS PSEUDORANGE MEASUREMENTS
The course aims to provide knowledge and processing capacity on time transfer through GNSS pseudorange measurements.
It includes a tutorial and interactive open-source software with a dedicated user manual and video demonstration.
Please enroll and start testing the processing of your CGGTTSS file
https://e-learning.bipm.org/course/view.php?id=74
This will help your evaluation of time transfer links and also the validation of your CGGTTS data before sending to the BIPM.
Please send us any feedback and if you have questions or suggestions, you can contact Bharath at tf.cbkt@bipm.org
2) Course that summarizes the CCTF Technical Exchanges organized by the CCTF WG TAI and WG Algorithms
In collaboration with the WG TAI and WG Algorithms we are organizing online technical exchange meetings allowing UTC laboratories to exchange their experience and to support the capacity building and the possibility of collaboration.
The Technical Exchange meetings are recorded, and the videos are publicly available on the BIPM eLearning page
https://e-learning.bipm.org/course/view.php?id=82
(The presentations are available on the WG TAI dedicated web page for the people that attended the meetings).
3) Course on TIME & FREQUENCY CAPACITY BUILDING by RESOURCE SHARING
As you may remember, the CCTF capacity building programme is based on shared resources, and we would like to start the collection of possible training resources that you may want to make available.
The course aims to offer a large variety of tools, from reference papers, to presentations, tutorials, e-learning course, and open-source software modules to help the education in the field of time and frequency metrology with particular attention to the realization of a time scale UTC(k).
The topics are subdivided in 15 categories, and you will find a presenting page on the BIPM eLearning page
https://e-learning.bipm.org/course/view.php?id=76
The list of the topics is as follows:
- Time and Frequency Overview
- Requirements for setting up a UTC(k) Time Scale Lab
- Statistical tools for Clock Characterization
- Measurement Techniques of Time and Frequency
- Time scale Generation and Operation
- Timescale Algorithms
- GNSS Time Transfer Link
- Two Way Satellite Time and Frequency Transfer Link (TWSTFT)
- Time and Frequency Transfer Over Optical Fiber
- Data Exchange (Interface Document) with BIPM
- BIPM products
- Dissemination of UTC(k)
- Redundant Laboratory for the back-up generation of UTC(k)
- Primary and Secondary Frequency Standards in UTC and UTC(k)
- Current Topics Under Discussion at CCTF
Could you please start thinking if you have availability of any material that could be suggested in this list? Would you be available to develop a new tool? Please contact us at tf.cbkt@bipm.org to propose your material.
All the other UTC labs will be able to take advantage of what you have developed for your lab!
We would be grateful to have your feedback, at least as a draft, by the end of May 2024
We sincerely hope that the CCTF Capacity building activity based on shared resources may be attractive and useful to all.
Thanks for any feedback to tf.cbkt@bipm.org
Marina, Liz, Bharath, Patrizia and Giulio
POST-DOC OFFER at FEMTO-ST– Besançon, France
Development of a stabilized laser on a sub-Kelvin Fabry-Perot cavity
Laboratory: FEMTO-ST– Besançon, France
Summary: Ultra-stable lasers have a central role in numerous scientific experiments for high precision measurements: atomic spectroscopy, diffusion of time & frequency signals by optical fiber, detection of gravitational waves and dark matter research. The performances are currently reaching fractional frequency stabilities below 10-16 at 1 second of integration. However, it is still insufficient for many applications including fundamental physics tests and optical atomic clocks. To overcome the current limits, the proposed offer consists in studying as finely as possible the behavior of a Fabry-Pérot cavity at 1 K, which will be used to stabilize a laser in frequency.
Offer details:
- Prerequisites : PhD in Physics
- Desired skills: Optical frequency metrology, Gaussian optics in free-space, Analog, digital and radio-frequency electronics, Control theory and locking/feedback techniques, Instrumentation, Cryogenic and ultra-high vacuum, Analysis and interpretation of noise and sources of noises
- Contract duration : 1 year
- Salary : approximately €2300 net
- Procedure : Send CV, cover letter and at least 1 reference letter to jonathan.gillot@femto-st.fr.