1 Phd Position On “Time-Gated Hyperspectral Imaging For Material Science”. Phd Programme In Physics...

Universities and Institutes of Italy

Italy

September 12, 2022

Description

  • Organisation/Company: Politecnico di Milano
  • Research Field: Engineering › Materials engineering Physics › Applied physics Physics › Optics
  • Researcher Profile: First Stage Researcher (R1)
  • Application Deadline: 12/09/2022 13:00 - Europe/Brussels
  • Location: Italy › Milano
  • Type Of Contract: Temporary
  • Job Status: Full-time
  • Hours Per Week: 40
  • Offer Starting Date: 01/11/2022
  • This fellowship will be in the context of the iPHOQS project, a large-scale Italian Research Infrastructure in the field of photonics and quantum science. Time-resolved photoluminescence spectroscopy is a fundamental tool to study the relaxation dynamics of solid-state materials, upon optical excitation. In photoinduced processes, like photocatalysis and solar energy harvesting and conversion, multiple deexcitation mechanisms can take place in materials at different timescales. To disentangle short living emissions from the long living ones, the project aims to develop a hyperspectral imaging workstation with time-gated detection to analyze deexcitation paths occurring at different timescales. The system combines a hyperspectral module with a timegated camera to separate short living emissions (occurring at the picosecond and nanosecond timescales) from long living ones (occurring at microseconds and milliseconds timescales). This approach has already proved to be very effective to study photocatalytic materials where long living emission are correlated with highly reactive surface defects. In parallel, the workstation could be very useful also to study crystal defects in semiconductor and inorganic materials, with potential applications in the fascinating field of heritage science, where the study of semiconductor pigments in artworks is fundamental to chemically understand degradation and fading occurring in modern paintings.

    The PhD candidates will be involved in the development research of a hyperspectral imaging workstation that combines an innovative interferometer (TWINS) with a time-resolved detection module. The last is based on a sub- nanosecond resolution time-gated camera. The workstation will work in two configurations: macro and micro. The macro setup will have a field of view of a few centimetres and will be suited to study the deexcitation mechanism in large samples, like pigments and artistic materials. The micro configuration will be based on an optical microscope and will be tailored to study light mediated phenomena in material science, like photocatalytic reactions. The excitation light will be provided by a low repetition rate (kilohertz) Q-switch tuneable laser generating 1 ns pulses.

    Benefits

    The PhD students will attend courses (on specific physics topics and on transversal and soft skills-related topics), as foreseen by the PhD School at Politecnico.

    They will also be involved in additional I-PHOQS training activities detailed as follows: i) Secondments in other facilities of the I-PHOQS network and abroad, joining high-level research groups working on the PhD research topic, selected with the agreement of the Supervisor. An increase in the scholarship will apply for secondment periods of up to 6 months (approx. 600 euro/month - net amount).

    ii) Network wide Laboratory Training Platforms to further expand the experimental skills and knowhow of the PhD students.

    iii) Full-immersion 1-week scientific retreats to provide training, engage students on scientific communication and discussion, update on latest achievements, ignite cross-contamination and new ideas, favor team building.

    iv) Lectures given by key experts to provide advanced training on emerging/frontier topics.

    v) Specific activities to improve soft and complementary skills.

    The monthly net income of PhD scholarship (max 36 months) is € 1195.50.

    Financial aid is available for all PhD candidates (e.g., purchase of study books and materials, funding for participation in courses, summer schools, workshops and conferences): up to € 4872.90.

    Accommodation in Residences of Politecnico di Milano (https:// www. residenze.polimi.it) is available for PhD students; special rates apply to selected out-of-town candidates.

    Eligibility criteria

    Master degree in Physics / Engineering / Material Science, or equivalent

    Candidates are required to have excellent knowledge of the English language

    Selection process

    Selection of the candidates will be done through a public competition. The candidates must apply within September 12th – 2:00 PM CET to the call posted at the link:

    Call

    Before applying to the call, the candidates are strongly suggested to send a single PDF-file containing:

  • CV, including a list of publications, if any
  • description of future research interests (max 1 page)
  • contact information of two references
  • to:

    gianluca.valentini@polimi.it and daniela.comelli@polimi.it

    Candidates who meet the requirements will be contacted for an interview, where further details on the research project will be provided.

    Additional comments

    Gender equality and diversity are regarded as a strength and an asset.

    Offer Requirements
  • REQUIRED EDUCATION LEVEL
  • Engineering: Master Degree or equivalent

    Physics: Master Degree or equivalent

    Computer science: Master Degree or equivalent

    Chemistry: Master Degree or equivalent

  • REQUIRED LANGUAGES
  • ENGLISH: Good

    Contact Information
  • Organisation/Company: Politecnico di Milano
  • Department: Department of Physics
  • Organisation Type: Higher Education Institute
  • Website: https:// www. polimi.it
  • E-Mail: gianluca.valentini@polimi.it
  • Country: Italy
  • City: Milano
  • Postal Code: I-20133
  • Street: piazza Leonardo da Vinci 32
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