Postdoc position in Photonics, Nanophotonics – DTU, Denmark

    Postdoc position in Photonics, Nanophotonics - DTU, Denmark

    Postdoc project, which is tied to the VILLUM FOUNDEN Young Investigator project on Silicon-Lithium Niobate Hybrid Integrated Quantum Photonics (QUANPIC), will investigate extremely low loss lithium niobate photonics platform, at the Department of Photonics Engineering (DTU Fotonik) at the Technical University of Denmark


    Deadline to Apply

    Apr 15, 2021 (23: 59 GMT +1)


    Overview

    PositionPostdoc position
    No. of Position(s)1
    Research AreaPhotonics, Lithium niobate fabrication, Nanofabrication, Quantum photonics
    SalaryAccording to standard norms
    WorkplaceDTU Fotonik, Technical University of Denmark, Lyngby, Denmark
    Contract Period2 Years

    Qualifications

    As a formal qualification, you must hold a PhD degree (or equivalent). The successful candidate is expected to have experience and expertise in one or more of the following subjects: 

    • Experienced in nanofabrication.
    • Experienced in integrated photonics.
    • Self-motivation in scientific research.
    • Good communication skills in English, both written and spoken.

    Preference

    • Experienced in lithium niobate fabrication.
    • Experienced in design of electro-optical modulators and switches
    • Experienced in ebeam lithography based on nanofabrication
    • Experienced in optimization of etching process of waveguide materials
    • Experienced in design and characterization of waveguides and modulators
    • Experience in nonlinear and quantum photonics
    • Experience in quantum information processing

    Responsibilities/ Job Description

    This Postdoc position will be part of the VILLUM QUANPIC project and will target experimental and theoretical investigation of the topics below:

    • Design of lithium niobate components, such as, fiber-to-chip couplers, waveguides, 2×2 couplers, electro-optical modulators for low-loss storage and high-speed switching of photons.
    • Optimization of etching process of lithium niobate waveguide to achieve good etching profile with extremely low sidewall roughness
    • Fabrication of ultra-low loss thin-film lithium niobate waveguide and electro-optical modulators on the commercial lithium niobate on insulator (LNOI) platform.
    • Characterization of the propagation loss, dispersion property of the fabricated low loss lithium niobate waveguide.
    • Characterization of the loss and bandwidth of the fabricated lithium niobate electro-optical switch
    • Implementation of multiplexing technology to achieve near-deterministic single photon source using the low-loss lithium niobate waveguide loop and electro-optical switch.

    The exact research activities will be continuously adapted to ensure high relevance and impact.

    How to Apply?

    To apply, please open the link “Apply online”, fill out the online application form, and attach all your materials in English in one PDF file.

    Documents Required

    • Application (cover letter)
    • CV
    • Academic Diplomas (MSc/PhD)
    • List of publications

    About DTU Fotonik

    DTU Fotonik has 210 employees with competences in optics and is one of the largest centers in the world based solely on research in photonics. Research is performed within quantum photonics, optical sensors, lasers, LEDs, photovoltaics, ultra-high speed optical transmission systems, bio-photonics, and nano-optics.

    About the Project

    This postdoc project, which is tied to the VILLUM FOUNDEN Young Investigator project on Silicon-Lithium Niobate Hybrid Integrated Quantum Photonics (QUANPIC), will investigate extremely low loss lithium niobate photonics platform, aiming to offer the best in both speed and transmission of integrated photonic switching capability for multiplexed single photon sources. The postdoc will carefully optimize the etching process of lithium niobate aiming to achieve extremely low sidewall roughness. The fabrication process will be carried out in our state-of-the-art cleanroom DTU Nanolabs (former DTU Danchip). The end goal is to achieve integrated devices on the low-loss lithium niobate photonics platform to enable ultra-high enhancement of photon generation probability approaching near-deterministic.

    The Postdoc project will be partly be tied to the High Speed Optical Communications group (HSOC) and partly to the Nanophotonic Devices group at the Department of Photonics Engineering (DTU Fotonik) at the Technical University of Denmark. The HSOC group is at the very forefront of international research in high-dimensional quantum communications technology and holds a number of world records within silicon photonics and ultra-high speed optical communication. The Nanophotonics Devices group work within a broad range of topics ranging from advanced passive devices for frequency- and spatial-domain light manipulation to complex integrated optoelectronic components with tailored material responses that allows light emission and control in the temporal domain. Both groups are at a highly international level, encourages collaborative work, and offers an informal working environment. The project will have access to on-site and state-of-the-art experimental and cleanroom facilities.

    Note

    • The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union. The period of employment is 24 months.
    • If you are applying from abroad, you may find useful information on working in Denmark and at DTU at DTU – Moving to Denmark.  

    Inquiries

    Senior Researcher Yunhong Ding, E mail: yudin@fotonik.dtu.dk

    Official advertisement

    Postdoc position on Low-loss Lithium Niobate Photonics Platform

    Post expires at 8:59am on Friday April 16th, 2021 (GMT+9)