Bilde av Salaj, Jehona
Bilde av Salaj, Jehona
PhD Student / Ultrasound, Microwaves and Optics Department of Physics and Technology jehona.salaj@uit.no Tromsø You can find me here

Jehona Salaj


Job description

As a PhD Student in Photonics, I am responsible for advancing research in free-standing waveguides with a focus on their application in trace gas sensing. My work involves theoretical and experimental research to develop on-chip spectroscopic solutions. Key aspects of my role include:

  • Research & Development: I contribute to research on free-standing thin-film waveguides for mid-infrared applications, especially in the context of trace gas sensing. In this capacity, I have developed waveguides for sensing carbon dioxide and methane, with applications ranging from environmental monitoring to biomedical sciences.
  • Experimental Work in Cleanroom Settings: I perform hands-on work in cleanroom facilities, utilizing tools such as the e-beam evaporator, PECVD, MLA, EBL, ICP-RIE, SEM, etc., to fabricate and characterize photonic components.
  • Data Analysis & Computational Modeling: I use computational tools (e.g., Lumerical, MPB, MATLAB, Python) to simulate optical properties and model the behaviour of photonic structures. I also analyze experimental data to interpret results and refine device designs.
  • Professional affiliations:

     I am the current leader of the Arctic Optica Student Chapter and the current UiT representative to the PhD council of the TNNN Research School. I am a member of SPIE and of the European Optical Society.

 


  • Jehona Salaj, Roman Zakoldaev, Ragnar Alexander Seton, Marek Vlk, Astrid Aksnes, Jana Jagerska :
    Isotope ratio measurements using on-chip laser absorption spectroscopy
    2024
  • Marek Vlk, Jehona Salaj, Jana Jagerska :
    Letter to the Editor Concerning “Ultra-Wideband Mid-Infrared Chalcogenide Suspended Nanorib Waveguide Gas Sensors with Exceptionally High External Confinement Factor beyond Free-Space”
    ACS Nano 2024 DOI
  • Jehona Salaj, Marek Vlk, Jens Høvik, Sebastian Alberti, Astrid Aksnes, Jana Jagerska :
    Fabrication of free-standing waveguides with microstructured 2D subwavelength cladding using maskless lithography
    2024
  • Jehona Salaj, Marek Vlk, Roman Zakoldaev, Jens Høvik, Astrid Aksnes, Jana Jagerska :
    On-chip spectroscopy with membrane waveguides at low pressure
    2023
  • Jehona Salaj, Marek Vlk, Jens Høvik, Astrid Aksnes, Jana Jagerska :
    Free-standing thin-film waveguide for PIC-based mid-IR trace gas sensing
  • Jehona Salaj, Marek Vlk, Jens Høvik, Henock Demessie Yallew, Astrid Aksnes, Jana Jagerska :
    Free-standing photonic crystal waveguides for on-chip spectroscopic detection of CO2
    2022
  • Jehona Salaj, Marek Vlk, Henock Demessie Yallew, Jens Høvik, Astrid Aksnes, Jana Jagerska :
    CO2 isotope detection in the MIR with free-standing thin-film SiNx waveguides
    2022
  • Jehona Salaj, Marek Vlk, Henock Demessie Yallew, Jens Høvik, Astrid Aksnes, Jana Jagerska :
    Free-standing SiNx waveguides for on-chip CO2 isotope detection
    2022
  • Jehona Salaj, Marek Vlk, Jens Høvik, Astrid Aksnes, Jana Jagerska :
    Free-standing waveguides for on- chip trace-gas sensing
    2022
  • Jehona Salaj, Marek Vlk, Astrid Aksnes, Jana Jagerska :
    Photonic crystal supported membrane waveguide for spectroscopic CO2 sensing
    2021

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    Research interests

    My current research interests are nanophotonics, photonic integrated circuits, nanofabrication, and spectroscopy.

    My role in past and current projects:

    Teaching

    In the Photonics courses FYS-3009 and FYS-8009, I am responsible for leading the simulation and mathematical exercise sessions.


    Member of research group


    CV

    Experience:

    • November 2020 - Present: PhD Student - UiT The Arctic University of Norway
    • July 2019 - February 2020: Project Researcher - University of Oulu
    • August 2012 - October 2012: Intern - University of Eastern Finland

    Education:

    M. Sc. in Photonics (2019)

    • University of Eastern Finland, Finland
    • Thesis: "Polarization beating with random electromagnetic beams"

    B. Sc. in Physics (2011)

    • University of Shkodra "Luigj Gurakuqi"
    • Thesis: "Theory and practical implementations of nanocavities in planar photonic crystals"

    Skills:

    • Cleanroom licenced tools: E-beam evaporator, PECVD, EBL, MLA, ICP-RIE, SEM.
    • Computing skills: Python, MATLAB, MPB, Lumerical.

    Grants and Awards:

    • Tycho Jæger's Prize in Electro-optics - Irma Salo Jæger and Tycho Jæger's Foundation & Norwegian Physical Society, 2024
    • UiT Talent Grant - UiT The Arctic University of Norway, 2023.
    • Best Poster Award - 7th ePIXfab Silicon Photonics Summer School, 2022

    Patents:

    • “Optical component (Microstructured air-suspended thin-film waveguide for spectroscopic trace gas sensing)”, Jana Jágerská, Marek Vlk, Ganapathy Senthil Murugan, Jehona Salaj; International publication number: WO2024052427A1

     


    Teknologibygget Tromsø 3.065


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