17/01/2020
The Human Resources Strategy for Researchers

Post-Doc (M/F): Super-resolved LDOS mapping on nanostructured samples

This job offer has expired


  • ORGANISATION/COMPANY
    CNRS
  • RESEARCH FIELD
    Physics
  • RESEARCHER PROFILE
    Recognised Researcher (R2)
  • APPLICATION DEADLINE
    07/02/2020 23:59 - Europe/Brussels
  • LOCATION
    France › PARIS 05
  • TYPE OF CONTRACT
    Temporary
  • JOB STATUS
    Full-time
  • HOURS PER WEEK
    35
  • OFFER STARTING DATE
    02/03/2020

The post-doctoral fellow will be in charge of the experiments based on super-resolved mapping of the LDOS in nanostructured materials. His/her work will essentially involve two tasks: 1. Sample nanofabrication; 2. Performing single-molecule fluorescence lifetime measurements with a super-resolved technique. He/She will analyse the experimental data and compare it with theoretical expectations.

The field of optical fluorescence microscopy has been revolutionized with the emergence of super-resolution imaging, recognized with the Nobel Prize in Chemistry 2014. This set of techniques allows us to image objects with a resolution at the nanometer length scale (~10 nm), well below the classical limit imposed by the diffraction of light (typically ~200 nm). Among these, single-molecule localization microscopy (SMLM) approaches (such as PALM, STORM, etc.) are based on the capacity of detecting single-molecules and the ability of switching on and off fluorescent emitters. At the Institut Langevin, we have further developed such concept and conceived a novel microscopy system capable of simultaneously detecting single fluorescent molecules as well as their fluorescence lifetime, and thus obtaining super-resolved fluorescence lifetime images [1,2].

So far, we have applied our system to study light-matter interactions in plasmonic nanostructures and obtained super-resolved cartographies of the local density of electromagnetic states (LDOS) of silver nanowires. We have also developed a method to properly locate single molecules close to a resonant structure based on their lifetime and far-field diffraction limited image. During this post-doc we will extend the study to other plasmonic or dielectric samples, such as dielectric nanoantennas and hyperbolic metamaterials. By studying the response of the molecules to the environment we will explore the possibility to map the spatial distribution of the modes of the electromagnetic field.

[1] Bouchet, D. et al. Probing near-field light-matter interactions with single-molecule lifetime imaging. Optica 6, 135–138 (2019).
[2] Blanquer, G. et al. Relocating single-molecules in super-resolved fluorescence lifetime images near a plasmonic nanostructure. Submitted for publication (2019).

Institut Langevin is a joint research unit between ESPCI Paris and CNRS located in Paris, France. The research conducted at Institut Langevin aims at understanding the propagation mechanisms of all kinds of waves in the most complex environments. Areas of interest are multi-wave imaging (elastography, acousto-optic and photo-elastic imaging), ultrasound/laser methods, Full-Field Optical Imaging (Optical Coherent Tomography, Digital Holography), nanophotonics (near-field microscopy in the infrared and THz ranges, optical nano-antennas, plasmonics) and metamaterials.

Eligibility criteria

• Candidates must hold a PhD in experimental nano-optics, quantum optics or atomic physics since less than two years and a relevant track record of publications.
• Experience in nanofabrication is necessary. Practical experience in optics would be highly appreciated, but motivated candidates with different background will also be considered.
• Knowledge in theoretical modelling and numerical simulation would be a valuable asset.
English language proficiency is of highest significance.

Web site for additional job details

Required Research Experiences

  • RESEARCH FIELD
    Physics
  • YEARS OF RESEARCH EXPERIENCE
    1 - 4

Offer Requirements

  • REQUIRED EDUCATION LEVEL
    Physics: PhD or equivalent
  • REQUIRED LANGUAGES
    FRENCH: Basic
Work location(s)
1 position(s) available at
Institut Langevin
France
PARIS 05

EURAXESS offer ID: 482164
Posting organisation offer ID: 13839

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