Reseach engineer on development of high-repetition rate intense THz sources and application for material analysis (M/F)

19 Mar 2024
Job Information

Organisation/Company

CNRS

Department

Complexe de recherche interprofessionnel en aérothermochimie

Research Field

Physics

Researcher Profile

Recognised Researcher (R2)

Country

France

Application Deadline

8 Apr 2024 - 23:59 (UTC)

Type of Contract

Temporary

Job Status

Full-time

Hours Per Week

35

Offer Starting Date

2 May 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

The CORIA laboratory is inviting applications for a postdoctoral position under MIMOSA project funded by the European Innovation Council (EIC) within Horizon-Europe program. The project gathers experts in chemistry, biophysics and scientific instrumentation aiming to develop a disruptive 4D microscopy enabling high spatial resolution and chemical sensitivity tomographic atom probe (TAP) analysis of bio-materials. The basic concept relies on the use of intense THz pulses to control heavy ions emission from a nanotip via field-emission thus offering unprecedented possibilities for the control of ions dynamics and their use for matter analysis and manipulation. Intense THz pulses have been proved to achieve athermal field evaporation in the case of metallic materials, where the THz field is enhanced by the metallic antenna effect. MIMOSA aims to address the great scientific and technological challenges facing the transposition of this concept of ion-field-emission to bio-materials.

The work will focus on the development of a high-intensity pulsed THz source meeting the requirements for ion evaporation by field-ion emission. To successfully develop the new THz-assisted APT technique, it is necessary to have pulsed THz sources providing sub-picosecond monocycle THz pulses with field intensities of several hundred kV/cm, operating at high repetition rates. Various approaches will be explored to increase the power of THz sources operating at high frequencies. The first approach involves developing a mid-infrared-emitting fiber laser to effectively drive THz generation in small-gap semiconductors and organic materials. The second approach will focus on implementing the discrete tilted wavefront pumping scheme using a reflective echelon mirror associated with high-power fiber lasers to efficiently pump different nonlinear crystals.
The recruited person will contribute to the implementation and optimization of high-repetition rate intense THz sources, the characterization of their performances, and their coupling with an APT instrument. He/she will also participate in disseminating the results through publications and participation in national and international conferences.

CORIA is a Joint Research Unit (UMR) attached to the CNRS Institute of Engineering and Systems (INSIS), the University of Rouen and the Rouen Institute of Applied Sciences (INSA). It is based at the Madrillet technology park, near Rouen in Normandy. CORIA's research areas cover fundamental and applied studies in photonics, turbulence, atomisation and reactive flows. The person recruited will join CORIA's Optics and Lasers Department.

Requirements

Research Field

Physics

Education Level

Master Degree or equivalent

Languages

FRENCH

Level

Basic

Research Field

Physics

Years of Research Experience

1 - 4

Additional Information
Eligibility criteria

The candidate should hold a master's degree in the fields of optics or applied physics, with theoretical and experimental skills in THz science and technology. Experience with ultrafast lasers and/or ultrafast optics would be highly appreciated. The research involves the design and construction of pulsed THz sources, as well as the collection and analysis of data within the framework of a collaborative project. The candidate should have an affinity for working in multidisciplinary teams. Indeed, they will play an active role in this collaboration by interacting with various partner laboratories involved in the MIMOSA project.

Website for additional job details

https://emploi.cnrs.fr/Offres/CDD/UMR6614-OLIBOU-003/Default.aspx

Work Location(s)

Number of offers available

1

Company/Institute

Complexe de recherche interprofessionnel en aérothermochimie

Country

France

City

ST ETIENNE DU ROUVRAY

Geofield

Where to apply

Website

https://emploi.cnrs.fr/Candidat/Offre/UMR6614-OLIBOU-003/Candidater.aspx

Contact

City

ST ETIENNE DU ROUVRAY

Website

http://www.coria.fr

STATUS: EXPIRED