PhD scholarship in Mid-Infrared Upconversion Imaging and Spectroscopy using Short Pulse Light Sources

Danmarks Tekniske Universitet (DTU)

Ph.d. & forskning
Storkøbenhavn

Frist 15. oktober 2017

DTU Fotonik works with all areas of photonic engineering, including a strong focus on optical sensor technologies. We are now seeking a PhD student to do research within short pulse upconversion. The Research will be carried out in the Optical Sensor Technologi group at Risø Campus. Starting date is November 1st 2017.

Responsibilities and tasks
The mid-infrared (mid-IR) wavelength range is an emerging and important new topic for frontier research. Its general importance relates to a multitude of mid-IR industrial and biomedical sensor applications. Chemical finger prints of most complex molecules such as those found in food, tissue or catalytic compounds all have vibrational spectra in the mid-IR, thus identifiable through mid-IR spectroscopy.

The main idea is not to develop a new IR camera, but to convert IR signals into the near infrared, subsequently detected using existing NIR CCD or InGaAs cameras.

In this project upconversion methods will be explored for the detection of femto- picosecond pulses. Using a tuneable short pulse (ps / fs) mid-IR light source for excitation or probing of the sample and synchronizing with the pump light will allow the demonstration of ultra-fast upconversion imaging in the fs / ps regime as an enabling mid-IR technology. Considerable attention will be paid to increase the spatial and spectral resolution of the up-conversion system, which will lead us in the research of new non-linear crystals. Furthermore, a theoretical study of the upconversion process of very short pulses is needed in order to optimize performance.

Experiments will take place at different locations. At the Optical Sensor Technology group we have a 1 ps synchronised 1.55/1.9 µm laser which can be used for initial experiments. At the Nonlinear Optics and Biophotonics group/DTU Fotonik headed by Professor Peter Uhd Jepsen the candidate will have access to a mid-IR OPO extending into well into the LWIR range (>10 µm). Through our collaboration partners at ICFO/Spain and Radiantis the candidate can access existing highly stable and powerful ps/fs OPOs in the 2-4.5 µm range. We expect that the candidate will be seconded at ICFO for a period of time working with these advanced laser sources for fs detection. Later in the project also 5-8 µm ps and ns OPOs will be available.

Qualifications
Candidates should have a master's degree in engineering/Physics or a similar degree with an academic level equivalent to the master's degree in engineering/Physics.

Approval and Enrolment
The scholarships for the PhD degree are subject to academic approval, and the candidates will be enrolled in one of the general degree programmes of DTU. For information about the general requirements for enrolment and the general planning of the scholarship studies, please see the DTU PhD Guide.

Assessment
The assessment of the applicants will be made by Christian Pedersen and Peter Tidemand-Lichtenberg.

We offer
We offer an interesting and challenging job in an international environment focusing on education, research, public-sector consultancy and innovation, which contribute to enhancing the economy and improving social welfare. We strive for academic excellence, collegial respect and freedom tempered by responsibility. The Technical University of Denmark (DTU) is a leading technical university in northern Europe and benchmarks with the best universities in the world.

Salary and appointment terms
The salary and appointment terms are consistent with the current rules for PhD degree students. The period of employment is 3 years.

Further information
Further information may be obtained from Christian Pedersen (Group leader), , and associate professor Peter Tidemand-Lichtenberg .

You can read more about DTU Fotonik on www.fotonik.dtu.dk.

Application
>Please submit your online application no later than 15 October 2017. Applications must be submitted as one pdf file containing all materials to be given consideration. To apply, please open the link "Apply online," fill in the online application form, and attach all your materials in English in one pdf file. The file must include:

  • A letter motivating the application (cover letter)
  • Curriculum vitae
  • Grade transcripts and BSc/MSc diploma (an official translation into English)
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and excel spreadsheet here)

Candidates may apply prior to ob­tai­ning their master's degree, but cannot begin before having received it.

All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.

DTU Fotonik has 220 employees with a wide range of competences in optics and is one of the largest centers in the world based solely on research in photonics. Research are performed within optical sensors, lasers, LEDs, photovoltaics, ultra-high speed optical transmission systems, biophotonics, nonlinear optics, ultrafast optical science, nanophotonics and quantum photonics.DTU is a technical university providing internationally leading research, education, innovation and public service. Our staff of 5,800 advance science and technology to create innovative solutions that meet the demands of society; and our 10,600 students are being educated to address the technological challenges of the future. DTU is an independent academic university collaborating globally with business, industry, government, and public agencies.


Ansøgningsfrist d. 15.10.2017

Ph.d. & forskning
Storkøbenhavn
Kemi, Biotek & Materialer
Maskin & Design
Matematik, Fysik & Nano
Naturvidenskab
Teknik & Teknologi
Forskning & Udvikling
Naturvidenskab
Teknik
Undervisning
Fejlmeld opslaget


Opslag oprettet d. 07.09.2017, sidst opdateret d. 07.09.2017




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