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Vacancies

Positions available in the School of Physics and elsewhere will be advertised here, although this list is not meant to be definitive. For postgraduate opportunities within the School of Physics, please see the Opportunities section under Postgraduate.

Available Positions in the School of Physics

There are currently 4 PhD and 2 Post-doctoral researcher positions available in the Donegan Photonics group in TCD.
Project 1: “development of an on-chip optical frequency synthesizer”
Project Description

With the help of a self-referenced optical frequency comb (OFC), optical frequencies can be controlled to the same precision as microwave frequencies. Currently self-referenced OFC systems are only available through bench-top setups such as a combination of femtosecond pulsed lasers, EDFAs, and highly nonlinear optical fiber. The whole setup is bulky, expensive and sensitive to environment changes. There is strong interest to miniaturize the whole setup to chip-scale so that a highly accurate optical frequency source would be cheap and easily available for applications such as a chip-scale optical clock, high spectral efficiency optical communications, and LiDAR. It could be realized now due to the development of photonic integration technology. In this project, a low-linewidth high-power tunable semiconductor laser for pumping will be developed at Huazhong University of Science and Technology (HUST). At Trinity College Dublin (TCD), high quality SiN microcavities for OFC generation will be developed. Both sides will then work together to co-package the pumping laser with the microcavity chip, the frequency doubling chip, low noise photodetectors, and all electronic components for frequency reference and locking. A chip sized optical frequency synthesizer with accuracy down to the Hertz level is our project aim. 
Applications are invited for a post-doc position and two four-year PhD studentships in Photonics group led by Professor John Donegan in the School of Physics, Trinity College Dublin. Successful applicants will join a vibrant community of students and postdoctoral researchers.  Trinity College Dublin, the University of Dublin is ranked 1st in Ireland and in the top 100 world universities by the QS World University Rankings. Further information on the group can be found at http://www.tcd.ie/Physics/research/themes/photonics/ 

These studies will provide an excellent base for a career both in academia and in high-value industry. The research is funded by Science Foundation Ireland for the work in Ireland and by National Science Foundation of China for the work in China.

PhD Studentships:
Stipend: €18,000 per annum for 4 years in addition to tuition fees. 
Funding is available for Irish and EU students.
International applicants with full funding are welcome to apply. Proof of funding will be required at application stage. 
The successful candidates will be highly self-motivated and have a first class or upper-second class honours degree from an Irish university, or an equivalent from another country, in Physics, Theoretical Physics, Material Science or Nanoscience, with a strong interest in photonic devices. A M.Sc. in a related area would be an advantage. A high level of written and oral communication skills in English is essential.

Graduate student one will work on integrated microring resonantors in SiN materials looking at structures that produce quality factors about 106 and have low loss.
Graduate student 2 will work on the injection locking of a 2 micron laser which will be developed by our collaborators in China. We need to characterize the laser and develop a robust injection locking technique that could stably lock the laser for a long time.

 

Post-doctoral position:

Salary upto €58371 depending on experience (4-5 years post PhD) must be an expert in semiconductor device fabrication. Clearly, we will seek a researcher with strong experience in the design of photonics devices. A key research goal for this project is to produce SiN microcavity structures with quality factors about 106, this will require very careful precise fabrication and use of the suite of fabrication tools available in CRANN. It is clear that innovations in SiN and other materials must be delivered as part of the project. Expertise in device designs, in e-beam lithography, in etching will be essential, with experience in optical lithography also a bonus.

Candidates for this post-doc position must have a PhD in Physics or Electronic Engineering and have had experience of modelling and fabrication during their PhD programmes.

How to Apply
Prospective candidates should send a detailed CV, a covering letter outlining their educational background, research interests and motivations, transcript of your marks if available, and the names and contact details of two academic referees to Professor John Donegan jdonegan@tcd.ie with subject heading photonics positions TCD.
Funding is available from January 2018 but this can be flexible to the timetable of the successful candidate.  
All applicants whose first language is not English and who have not been educated through the medium of English must present one of the following qualifications in the English language to be eligible for registration in the University:

  • IELTS: Grade 6.5 overall
  • TOEFL: 88 internet-based, 570 paper-based, 230 computer-based
  • University of Cambridge: 
    Proficiency Certificate, Grade C or better (CEFR Level C1 or C2) 
    Advanced Certificate, Grade C or better (CEFR Level C1 or C2) 
  • Pearson Test of English (Academic) - PTE Academic: a minimum score of 63 to be eligible (with no section score below 59)

Please note that test scores are only valid for 2 years.


There are currently PhD and Post-doctoral researcher positions available in the Donegan Photonics group.
Project 2: “Athermal semiconductor lasers for applications in information and communications technologies ”
Project Description

The semiconductor laser is a highly efficient photonic device which is the basis for wired optical networks. The device has allowed the very rapid growth in internet traffic with rates upto 20%/yr for VOIP and data centres. While very efficient, most lasers require active cooling to control the power but more importantly, the wavelength of the laser. For DWDM applications, the laser must remain within its channel in a range of only 40 GHz. The Donegan group has developed a laser platform based on high-order surface gratings that show ease of fabrication and exhibit high yield. In this project, we will demonstrate the development of athermal laser performance in this laser platform. The project will feature novel designs that incorporate AWG structures, multi-contact structures that incorporate materials with negative thermo-optic behaviour. Laser designs for heat-assisted magnetic recording will also be developed. This new platform of semiconductor laser devices will deliver for Ireland with impacts in the area of optical communications and magnetic recording. It is anticipated that several patents will be generated from this research which will be licensed to photonic companies within Ireland making a direct impact on the knowledge economy in Ireland. 
Applications are invited for a post-doc position and two four-year PhD studentships in Photonics group led by Professor John Donegan in the School of Physics, Trinity College Dublin. Successful applicants will join a vibrant community of students and postdoctoral researchers.  Trinity College Dublin, the University of Dublin is ranked 1st in Ireland and in the top 100 world universities by the QS World University Rankings. Further information on the group can be found at http://www.tcd.ie/Physics/research/themes/photonics/ 

These studies will provide an excellent base for a career both in academia and in high-value industry. The research is funded by Science Foundation Ireland.

PhD Studentships:
Stipend: €18,000 per annum for 4 years in addition to tuition fees. 
Funding is available for Irish and EU students.
International applicants with full funding are welcome to apply. Proof of funding will be required at application stage. 
The successful candidates will be highly self-motivated and have a first class or upper-second class honours degree from an Irish university, or an equivalent from another country, in Physics, Theoretical Physics, Material Science or Nanoscience, with a strong interest in photonic devices. A M.Sc. in a related area would be an advantage. A high level of written and oral communication skills in English is essential.

Graduate student 1 will work on the laser structures for heat assisted magnetic recording (HAMR) devices and also devices for passive optical networks. Here we focus on the development of a laser structure that will be expected to have a variety of feedback levels that will influence both the dynamics and the temperature of the laser. Graduate student 2 will work on thermal imaging techniques to understand heat flow process in both our standard designs and in the newer devices produced in this project.

Post-doctoral position:

Salary upto €49358 depending on experience (3-4 years post PhD) must be an expert in semiconductor laser design and fabrication. Clearly, we will seek a researcher with strong experience in the design of photonics devices. The post-doc will need strong expertise in translation of device designs into fabricated devics working with the external foundry.  They will also supervise the characterisation of the fabricated devices along with the graduate students.

Candidates for this post-doc position must have a PhD in Physics or Electronic Engineering and have had experience of modelling and fabrication during their PhD programmes.

How to Apply
Prospective candidates should send a detailed CV, a covering letter outlining their educational background, research interests and motivations, transcript of your marks if available, and the names and contact details of two academic referees to Professor John Donegan jdonegan@tcd.ie with subject heading photonics positions TCD.
Funding is available from April 2018 but this can be flexible to the timetable of the successful candidate.  
All applicants whose first language is not English and who have not been educated through the medium of English must present one of the following qualifications in the English language to be eligible for registration in the University:

  • IELTS: Grade 6.5 overall
  • TOEFL: 88 internet-based, 570 paper-based, 230 computer-based
  • University of Cambridge: 
    Proficiency Certificate, Grade C or better (CEFR Level C1 or C2) 
    Advanced Certificate, Grade C or better (CEFR Level C1 or C2) 
  • Pearson Test of English (Academic) - PTE Academic: a minimum score of 63 to be eligible (with no section score below 59)

Please note that test scores are only valid for 2 years.

 

 

PhD Studentship in Gas Turbine Combustion Physics: investigating cleaner and more efficient combustors

PhD Studentship in Gas Turbine Combustion Physics
Stipend: €18,000 per annum for 4 years in addition to tuition fees

Applications are invited for a four-year PhD studentship in the research team of Prof. Stephen Dooley at the School of Physics, within the Faculty of Engineering, Mathematics and Science of Trinity College Dublin, Ireland. The position is part of an exciting international collaboration with Siemens Gas Turbines business units across Canada, Germany and the United States in part supported by Science Foundation Ireland.

Gas turbines are a major technology for energy generation, accounting for approximately one third of energy utilised across the world and in Ireland. Their dominant role is due to their ability to operate on a range of diverse fuel types and to their high efficiency. As our energy sources have diversified to include a larger contribution from intermittent renewable energy sources such as wind and solar, the gas turbine has become of yet more importance as its fast turn-up and turn-down times allows for the dynamic balancing of the grid load needed to integrate intermittent renewables.

With the carbon dioxide production targets set by the Paris Climate Accord and by the European Union, gas turbine technology must be advanced further toward higher efficiency, further fuel flexibility and reduced emission of nitrogen oxides. For this reason, Siemens Gas Turbines has recruited a team of physics and chemistry orientated engineers from Trinity College Dublin and the National University of Ireland, Galway to develop a set of computational modelling tools that will allow for cleaner and more efficient gas turbine combustors to be designed. The research at Trinity College Dublin will produce a highly accurate numerical model that accurately describes all of the important physics and chemistry occurring in the gas turbine combustion of a number of natural gas and crude oil derived fuels selected by Siemens. The major aspects of the research project are numerical in nature. However, some experimentation will be required to characterise the various fuel identities under study.

The student will work toward obtaining their PhD in a multi-disciplinary research team of four post-doctors and several students working on fundamental and applied energy research toward the mitigation of CO2 driven climate change. The successful candidate will have an appropriate background in physical sciences, applied mathematics or engineering, with a keen motivation in applying their skills to real-world immediate climate change problems. Applicants should hold, or expect to receive, an honours degree (or equivalent) in Physics, Applied Mathematics, Mechanical/Chemical Engineering or a related discipline. Interest or experience in the conducting of numerical modelling (e.g. difference reduction, Monte Carlo and/or mathematical optimisation algorithms) with prevalent software packages or codes (e.g. matlab, fortran, python, cantera, chemkin) is an advantage. Knowledge of chemistry would also be helpful but is not essential. A Master’s degree in a related area is beneficial. Enthusiasm to challenge oneself, motivation to learn (by tuition and independently) and the possession of excellent written and oral communications skills are essential.

Prospective candidates should send a detailed CV, a covering letter outlining their educational background, research interests and motivations, and the names and contact details of two referees to Prof. Stephen Dooley (stephen.dooley@tcd.ie). Following receipt of your application, Prof. Dooley will be available to discuss the research program in further detail. The anticipated start date of the project is October 2017 but this can be flexible to the timetable of the successful candidate.

Funding Notes

The project is a part of a ~ €1.5 million research collaboration between Siemens Gas Turbines, Trinity College Dublin and the National University of Ireland, Galway on the improvement of gas turbine combustion technologies in response to climate change. The project is Funded by Siemens Gas Turbines and Science Foundation Ireland.

Further Information

Two-year Postdoctoral Research Position in Thermochemical Reaction Kinetics of Lignocellulosic Fuel Conversion

The position is available in the School of Physics, within the Faculty of Engineering, Mathematics and Science at Trinity College Dublin, Ireland, and is supported by Science Foundation Ireland, in the research team of Prof. Stephen Dooley. The project intends to provide science to alleviate global dependence on carbon intensive solid fossil fuels, such as coal, by exploiting lignocellulosic plant matter, particularly waste lignocellulose, as a viable energy source for stationary power generation.

The interaction of complicated physics and chemistry dictates the successful oxidation of solid lignocellulose when used as fuel for power generation. Plant matter is composed of different configurations of cellulose, lignin and hemicellulose, at different proportions according to the particular plant material, providing a very large degree of variability in composition. As such, historically this fuel type has been treated as an engineering material, rather than as a chemical material of identifiable functionality. The projects seeks to reverse this stance, providing fundamental scientific comprehension of direct engineering utility toward the clean burning of lignocellulose.

Prospective candidates should send a detailed CV, a covering letter outlining their educational background and research track-record, and the names and contact details of two referees to Prof. Stephen Dooley (stephen.dooley@tcd.ie). Please quote the entire job title in the subject line of your email. The 24-month position is available immediately. Applications will be evaluated as received and candidates of all levels of experience possessing appropriate skillsets will be considered.

View Full Details Here

Two-year Postdoctoral Research Position in Liquid Fuel Synthesis and Characterisation

The position is available in the School of Physics, within the Faculty of Engineering, Mathematics and Science at Trinity College Dublin, Ireland, and is supported by Science Foundation Ireland, in the research team of Prof. Stephen Dooley. The project focusses on the chemistry and physics controlling energy generation when transportation fuels are reacted in internal combustion engines.

The interaction of complicated chemistry and physics limits the cleanliness and efficiency of both conventional compression ignition ("Diesel") and spark ignition ("Gasoline") reciprocating internal combustion engines.

The project intends to alter the chemical structure of conventional liquid transportation fuels (e.g. n-heptane) in order to tailor the combustion properties of the fuel to those desired for particular engine configurations. A researcher with principal skills and experience in synthetic chemistry or chemical engineering is required. S/he is expected to; lead the execution of the project and its reporting in international peer reviewed journals in the chemistry/chemical engineering area, to publicise their progress at international scientific conferences, and to engage with external collaborators. A formal background in the physical sciences, holding a Ph.D. degree in a chemical discipline such as Organic Chemistry, Catalysis, Chemical Engineering or a related subject matter would be most appropriate.

Prospective candidates should send a detailed CV, a covering letter outlining their educational background and research track-record, and the names and contact details of two referees to Prof. Stephen Dooley (stephen.dooley@tcd.ie). Please quote the entire job title in the subject line of your email. The 24-month position is available immediately. Applications will be evaluated as received and candidates of all levels of experience possessing appropriate skillsets will be considered.

View Full Details Here

Useful Websites

Other useful websites that may be of interest to you are as follows:

For current staff and students of TCD, the Careers Advisory Service can provide you with support with writing cover letters, CVs and with interviews.

For a list of all TCD staff vacancies please visit the Human Resources website.