Phd Fellowship Nano-optical Tweezers to Manipulate - Marseille, France - CNRS Institut Fresnel

Description

PhD fellowship Nano-Optical Tweezers to Manipulate Single NanoObjects:

• Réf

-
ABG-111375

• Sujet de Thèse 22/02/2023
• Contrat doctoral

• CNRS Institut Fresnel

• Lieu de travail
• Marseille
• Provence-AlpesCôte d'Azur
• France
• Intitulé du sujet
• PhD fellowship Nano-Optical Tweezers to Manipulate Single NanoObjects
• Champs scientifiques
• Physique
• Mots clés nanophotonique, optique, physique, pinces optiques
  Description du sujet:

Motivation

• Optical tweezers offer a versatile approach to manipulate living cells and other micronsized objects with mínimal invasiveness. However, due to the diffraction limit, objects with sizes below 100 nm are nearly impossible to trap using conventional microscopes. To overcome this limitation, nanophotonics allows to concentrate light well below the diffraction limit. The nanooptical tweezers enable efficient trapping of nanoscale objects that would otherwise be too small or too transparent to be manipulated using conventional optical tweezers.

However the plasmonic nanotweezers using optical resonances in metal nanogaps come with their own issues:

the fabrication is complex and expensive, the control and reproducibility is often poor for gap sizes below 20 nm, and the range of action is limited, requiring long waiting times of several minutes to trap a particle.- A paradigm change is needed to overcome the limitations in the manipulation of nano-objects.

Here we propose to use thermal gradient forces instead of optical gradient forces.

Temperature gradients at the micro/nanoscale can induce forces which will be exploited in this PhD project to trap single nano-objects as small as 5 nm with an action range larger than 500 nm.

Research / PhD thesis description-
Gains of this PhD project

• Close supervision by an internationally recognized expert in the field of nanophotonics and single molecule fluorescence techniques, providing unparalleled access to cuttingedge research and knowledge.
• Direct mentorship and dedicated trainings, tailored to the student's specific interests and goals, to ensure they reach their full potential.
• Attendance at weekly seminars featuring leading experts in the field, providing opportunities to network and learn from the best in the field.
• Opportunities to present at major international conferences, giving the student a platform to showcase their research and make valuable connections.
• Access to stateoftheart equipment and technology, allowing the student to perform cuttingedge research and stay at the forefront of the field.
• Personal and professional development training, including opportunities for leadership and communication skills development, to prepare the student for a successful career in academia or industry.
• The opportunity to work on groundbreaking research projects that have the potential to make a significant impact in the field of nanophotonics and single molecule fluorescence.
• The chance to be part of a highly skilled and motivated research team, working alongside some of the brightest minds in the field.
• The opportunity to contribute to the advancement of knowledge in the field and make a meaningful impact on the world through their research.
• The opportunity to develop a diverse set of transferable skills and gain valuable experience that will be highly sought after by employers in academia and industry.

Terms of employment - PhD fellowship

• The position is intended as fulltime (38 hrs/week, 12 months/year) appointment. The fellowship is offered for a period up to three years. Extensions will be possible based on context and performance. A PhD degree from Aix Marseille University will be granted after successful completion of the PhD research.

Web LinksPrise de fonction**:

• 01/10/2023
  Nature du financement:
• Contrat doctoral

Précisions sur le financement:

• 36 mois, temps plein
  Présentation établissement et labo d'accueil:

• CNRS Institut Fresnel

• The Institut Fresnel is a research state laboratory based in Marseille / France, devoted to research and higher education with affiliation to both CNRS and Aix Marseille University. Institut Fresnel is seeking to recruit talented, enthusiastic young scientists who are highly motivated to boost their research career in the areas of nanosciences, biosensing, and nano/biotechnologies.

Site web:


Intitulé du doctorat:

• Doctorat de Physique
  Pays d'obtention du doctorat:
• France

Etablissement délivrant le doctorat:

• Aix-Marseille Université
  Ecole doctorale:
• Physique

et sciences de la matière 30/03/2023