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Post doc: THz spectroscopy of a single virus
Combining near field microscopy and THz spectroscopy to enable its operation on single virrus.
Keywords: near field scanning spectroscopy. Time domain spectroscopy, vibrational spectroscopy, Quantum cascade laser
The goal is to confine the electromagnetic THz field in a sub-wavelength region around the virus to be measured. During the first phase of the project, feasibility experiments will be carried out in the mid-IR frequency range (~30THz). We will then move to the THz range. In particular we plan a systematic study based on FDTD simulations to design an ad hoc SNOM tip that maximizes the coupling with THz radiation. Finally we plan to work on the improvement of the detection sensitivity of the SNOM system by using a new type of coherent detection technique. The outcome of this project will be an optimized THz near-field instrument that will help answering fundamental questions in virology, such as the role played by the vibrations of the viral capsid (i.e. the protein shell around the virus).
The candidate will work within a team of researchers in the THz-Photonics group at IEMN Laboratory. The group has a long lasting experience in the conception and realization of THz optoelectronic devices, such as InGaAs and GaAs-based photomixers, and is fully equipped to carry out this project, including state of the art microwave and mm/sub-mm-wave electronic instrumentation, MIR and THz laser sources and detectors, and dedicated THz TDS and SNOM setups. The Laboratory hosts a 1500m2 clean-room with state of the art growth and fabrication facilities. IEMN is located in Lille, the capital of French Flanders, a vibrant city close to the Belgian border at 50min by train from Paris-CDG airport.
To undertake this work we seek a motivated student with an experimental background in optics and photonics. Specific know-how on near field microscopy or THz spectroscopy is a plus but not mandatory.
Starting date: before December 2017
Duration: 24 months
Salary: ~2000E/month
The goal is to confine the electromagnetic THz field in a sub-wavelength region around the virus to be measured. During the first phase of the project, feasibility experiments will be carried out in the mid-IR frequency range (~30THz). We will then move to the THz range. In particular we plan a systematic study based on FDTD simulations to design an ad hoc SNOM tip that maximizes the coupling with THz radiation. Finally we plan to work on the improvement of the detection sensitivity of the SNOM system by using a new type of coherent detection technique. The outcome of this project will be an optimized THz near-field instrument that will help answering fundamental questions in virology, such as the role played by the vibrations of the viral capsid (i.e. the protein shell around the virus).
The candidate will work within a team of researchers in the THz-Photonics group at IEMN Laboratory. The group has a long lasting experience in the conception and realization of THz optoelectronic devices, such as InGaAs and GaAs-based photomixers, and is fully equipped to carry out this project, including state of the art microwave and mm/sub-mm-wave electronic instrumentation, MIR and THz laser sources and detectors, and dedicated THz TDS and SNOM setups. The Laboratory hosts a 1500m2 clean-room with state of the art growth and fabrication facilities. IEMN is located in Lille, the capital of French Flanders, a vibrant city close to the Belgian border at 50min by train from Paris-CDG airport.
To undertake this work we seek a motivated student with an experimental background in optics and photonics. Specific know-how on near field microscopy or THz spectroscopy is a plus but not mandatory.
Starting date: before December 2017 Duration: 24 months Salary: ~2000E/month
Virology is a vast research field presenting many challenges and open problems that have important implications both from a fundamental and technological point of view. Terahertz (THz) spectroscopy is a powerful technique that allows investigating large molecules of biological interest such as proteins, as well as the vibrations of nano-objects. The main objective of this project is to demonstrate THz spectroscopy of a single virus by combining time domain spectroscopy with an existing THz SNOM system that will be optimized for this specific application.
Virology is a vast research field presenting many challenges and open problems that have important implications both from a fundamental and technological point of view. Terahertz (THz) spectroscopy is a powerful technique that allows investigating large molecules of biological interest such as proteins, as well as the vibrations of nano-objects. The main objective of this project is to demonstrate THz spectroscopy of a single virus by combining time domain spectroscopy with an existing THz SNOM system that will be optimized for this specific application.
Applications, including a CV and a recommendation letter should be sent to:
romain.peretti@iemn.univ-lille1.fr
stefano.barbieri@iemn.univ-lille1.fr
Applications, including a CV and a recommendation letter should be sent to: romain.peretti@iemn.univ-lille1.fr stefano.barbieri@iemn.univ-lille1.fr