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Korea-Tübingen PhD Program: Project 7/2024: PhD Project Title: Sub-patterned optical nano-antennas with ultra-high precision geometric control

Topic Description: When noble metal nanostructures are excited by light, the free electron density in the metal performs collective oscillations that are called plasmons. Such particles act like antennas for visible light. By further fine-tuning the shape of such nanostructures through sub-patterning with single-digit precision, e.g. using focused helium ion beam milling, local coupling of the electric fields at edges of the structure can lead to extremely high electric near-fields, and/or the emission direction of the antennas can be modified. These options are attractive e.g. for sensing applications, and coupling can be used to fine-tune the resonances of the system. Techniques with ultra-high control down to the atomic level are required to engineer high-quality antennas. To optimize geometric control, single crystalline gold flakes will be combined with the advanced methods of atomic layer deposition of ultra-thin oxide layers and focused helium ion beam milling for lateral outline control. The resulting antennas will be imaged by scanning electron microscopy, and their optical properties and emission patterns will be investigated by micro-spectroscopic analyses supported by numerical simulations.

Faculty: Faculty of Science
Institute/Section/Subject: Institute for Applied Physics / Plasmonic Nanostructures Group

Supervising Professor(s): Prof. Dr. rer. nat. Monika Fleischer

About the Supervisor(s): Prof. Fleischer's research focuses on the lithographic fabrication and spectroscopic analysis of metallic nanostructures for nano-optics, plasmonics, near-field microscopy and sensing. The metal nanostructures are combined with e.g. bioassays, quantum dots or organic films to investigate the emerging properties of the hybrid systems. The optical properties are modelled by numerical simulations. For information, see:

Requirements for the application:
Required Degrees: Master degree in Physics, Optics, Nanoscience, or comparable
Language Requirements: English (IELTS 6,5 or TOEFL equivalent)
Notes: Applicants should have good practical & analytical skills. Previous experience in nanofabrication, microscopy and/or spectroscopy is welcome. Participation in tutoring lab courses will be expected.

For further instructions on how to apply, more information on the program and contact details please see below.
Korea-Tübingen PhD Program
The University of Tübingen have established a PhD Program which supports Korean nationals from partner Universities wishing to carry out all or part of their PhD study in Tübingen.

  • Cheju National University
  • Chonbuk National University
  • Chungnam National University
  • Ewha Womans University
  • Hanyang University
  • Korea University
  • Pusan National University
  • Seoul National University
  • Sogang University
  • Sookmyung Women's University
  • Sungkyunkwan University
  • Yonsei University

  • Aims:
    • providing high quality research training to qualified students from Korean universities
    • developing education and research collaborations between the University of Tübingen and Korean universities and research institutions

    Target group:
    Excellent postgraduate and doctoral students from Korean partner universities who are citizens and permanent residents of the Republic of Korea at the time of application

    Application Process:
    • June 30: Application deadline. Applications must be handed in through the online application system of the University of Tübingen
    • between July 4 and 7: round of interviews in English
    • by July 30: Successful applicants will be officially informed and provided letters of admission.
    • by Oct 1: Program participants arrive in Tübingen

    • How to Apply:
      In order to apply you need to upload the following documents combined in 1 PDF
      • Cover/Motivation letter with the description of academic characteristics that qualify you to complete the PhD project successfully
      • CV
      • Academic transcripts*
      • Proof of proficient English language skills - TOEFL iBT 95 or IELTS 6.5 or equivalent

      *List of required Academic transcripts (including official translation into German or English for documents issued in Korean)
      1) Bachelor’s Degree Award Certificate / Bachelor Gradverleihungsurkunde
      2) Transcript of the subjects and marks / Fächer- und Notenübersicht for your Bachelor’s degree/ für das Bachelorstudium
      3) Master’s Degree Award Certificate / Master-Gradverleihungsurkunde
      4) Transcript of the subjects and marks for your Master’s Degree / Fächer- und Notenübersicht für das Masterstudium

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