Post-doc: Development of a spectrometer using Kinetic Inductance Detectors (KID) M/F
- Researcher in FTC
- 24 month
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Institut NEEL
Contract Type
Researcher in FTC
Working hHours
Full Time
Workplace
38042 GRENOBLE
Contract Duration
24 month
Date of Hire
01/09/2026
Remuneration
Between 3041,58 € and 3467,33 € gross monthly according to experience
Apply Application Deadline : 22 June 2026 23:59
Job Description
Missions
Millimeter and sub-millimeter astrophysics is nowadays among the most important pillars supporting our common cosmological model. In particular, the Cosmic Microwave Background, the most primordial electro-magnetic radiation that is observable, is peaking at millimeter wavelengths. Kinetic inductance detectors represent the state-of-the-art technology for millimeter-wave observations in astrophysics. These are LC resonators made from superconducting materials. The detection principle is based on monitoring the frequency variation of the resonator f0~(LC)^(-1/2). Incident photons break up Cooper pairs, thereby altering the inductance L and, consequently, the resonance frequency f0. The energy of the superconducting band is the minimum detectable energy.
We aim to develop a new on-chip spectroscopy technology using kinetic inductance detectors and a magnetic field [1]. he spectral response of the Kinetic Inductance Detectors will be modified by reducing the superconducting gap using the magnetic field. The goal of the project is to design, build, and test a spectrometer based on kinetic inductance detectors at low temperatures. The postdoctoral researcher will be responsible for the nanofabrication and testing of the detectors at 100 mK.
[1] F. Levy-Bertrand, M. Calvo, U. Chowdhury, A. Gomez, J. Goupy, and A. Monfardini, Magnetic field tunable spectral response of kinetic inductance detectors, Applied Physics Letters 126, 042602 (2025)
Activity
- Nanofabrication
- RF measurements in a dilution refrigerator
- Python and LabVIEW programming
- Data analysis
Your Profil
Skills
Expertise in nano-lithography and low-temperature RF measurements is a must. Programming skills are welcome.
Your Work Environment
The Institut NÉEL is a CNRS unit (UPR 2940) under agreement with the University Grenoble Alpes. The laboratory is related to the CNRS Physique. It is located in Grenoble, in the heart of a unique scientific, industrial and cultural environment. It is one of the largest French national research institutes for fundamental research in condensed matter physics enriched by interdisciplinary activities at the interfaces with chemistry, engineering and biology. It consists of 450 employees, including 175 researchers.
CNRS is a public, scientific and technological organisation.
The core mandate is to identify, to carry out or to have carried out, either alone or with partners, all research that advances science or contributes to the country's economic, social, and cultural progress. Internationally recognised for the excellence of its scientific research, the CNRS is a reference in the world of research and development, as well as for the general public.
The work will be carried out in the “MagSup” (Magnetism and Superconductivity) team at the Institut NÉEL.
Constraints and risks
No particular constraints or risks are related to this work.
Compensation and benefits
Compensation
Between 3041,58 € and 3467,33 € gross monthly according to experience
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UPR2940-ELOBER-164 |
|---|---|
| CN Section(s) / Research Area | Micro and nanotechnologies, micro and nanosystems, photonics, electronics, electromagnetism, electrical energy |
| Relevant experience | 1 to 4 years |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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