Tag-arkiv: Chalmers University of Technology

Postdoc in frequency combs for fiber-optic communications


Today’s fiber-optic communication systems form the backbone of the Internet but are facing significant challenges with regards to energy consumption. To counteract this, lightwave communication systems will increasingly rely on photonic integrated circuits (PICs). PICs bring many beneficial features such as miniaturization, stability and the possibility for low-cost fabrication. They will be crucial in the future for establishing greener and faster communication links.

Information about the project
This project will investigate an emerging technology called microresonator frequency comb (or microcomb). A microcomb has the astonishing property of generating hundreds of optical frequencies in a microphotonic chip when illuminated with a single-frequency laser and is a strong contender for wavelength division multiplexing. This project envisions entering a new era in optical communications, where the phase coherence of microcombs is fully capitalized for realizing multidimensional signal processing architectures in the field of fiber-optic communications. The project is partly financed by the Knut and Alice Wallenberg Foundation.

Information of the laboratory
The Photonics laboratory at the Microtechnology and Nanoscience Department (MC2) is a dynamic and creative group with about 30 members working in an international and collaborative atmosphere. We perform both curiosity-driven and applied-research in the areas of optoelectronics, nanophotonics, and fiber optic systems. We enjoy a state-of-the-art laboratory for fiber-optic communications and have access to in-house cleanroom facilities to manufacture photonic devices. Please visit: www.vtc-lab.com

Major responsibilities
As postdoctoral fellow, your main responsibilities are to lead and conduct research, and guide junior PhD students. You will have the freedom to contribute with your ideas and collaborate with other senior researchers and professors.

Qualifications
You should have a PhD degree (or equivalent) in Applied Physics, Engineering Physics, Electrical Engineering or similar; the degree should generally not be older than three years. You must have experience with supervision of junior students (PhD or Master). You must have solid experience with fiber-optic coherent communication experiments, signal processing algorithms, demonstrated by a number of peer-reviewed publications scientific publications to your credit.

Position summary
The postdoctoral position is a full-time employment position limited to 2 years (1+1). We offer a competitive salary, excellent working conditions and access to world-class facilities and infrastructure. Starting date is negotiable.

Chalmers continuously strives to be an attractive employer. Equality and diversity are substantial foundations in all activities at Chalmers.

Our offer to youChalmers offers a cultivating and inspiring working environment in the dynamic city of Gothenburg
Read more about working at Chalmers and our benefits for employees.

Application procedure
The application should be marked with Ref 20210012 and written in English. The application should be sent electronically and be attached as pdf-files, as below:

CV: (Please name the document as: CV, Surname, Ref. number) including:
• CV, include complete list of publications
• Previous teaching and pedagogical experiences
• Two references that we can contact.

Personal letter: (Please name the document as: Personal letter, Family name, Ref. number)
1-3 pages where you:• Introduce yourself • Describe your previous research fields and main research results• Describe your future goals and future research focus

Other documents:
• Attested copies of completed education, grades and other certificates.

Please use the button at the foot of the page to reach the application form. The files may be compressed (zipped).

Application deadline: 15 November, 2021

For questions, please contact:
Professor Victor Torres Company
E-mail: torresv@chalmers.se
Phone: +46-31 7721904

*** Chalmers declines to consider all offers of further announcement publishing or other types of support for the recruiting process in connection with this position. *** 
   



Chalmers University of Technology conducts research and education in engineering sciences, architecture, technology-related mathematical sciences, natural and nautical sciences, working in close collaboration with industry and society. The strategy for scientific excellence focuses on our six Areas of Advance; Energy, Health Engineering, Information and Communication Technology, Materials Science, Production and Transport. The aim is to make an active contribution to a sustainable future using the basic sciences as a foundation and innovation and entrepreneurship as the central driving forces. Chalmers has around 11,000 students and 3,000 employees. New knowledge and improved technology have characterised Chalmers since its foundation in 1829, completely in accordance with the will of William Chalmers and his motto: Avancez!    


Read the job description at the university homepage

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Post expires on Monday November 15th, 2021

PhD students in Quantum Nanophotonics


Our ambitious goal at Chalmers is to build a useful quantum computer. The complexity of today’s quantum computers must be increased massively to solve problems of practical significance in chemistry, medicine, and others. We are forming a new interdisciplinary team exploring nanoscale optical and superconducting devices to help increase the power of quantum processors. We are seeking motivated PhD students to join us in a unique endeavor at the cutting edge of integrated photonics and quantum engineering.

Information about WACQT, the project and the divisionThis project is part of the Wallenberg Centre for Quantum Technology (WACQT), a 12-year, billion-SEK initiative started in 2018 with the purpose of advancing Swedish academia and industry to the forefront of quantum technology, and to build a Swedish quantum computer. It is also funded by the European Research Council.

Building a quantum computer requires a multidisciplinary effort involving experimental and theoretical physicists, photonics and microwave engineers, computer scientists, software engineers, and researchers in materials science and nanotechnology. At Chalmers we are developing the quantum devices, control circuits, firmware, and fabrication methods required to make the quantum computer a reality.

Our approach to quantum computing uses high-fidelity cryogenic microwave qubits. However, it is currently impossible to connect the qubits well beyond a single refrigerator while preserving their fragile quantum properties – creating major challenges in scaling. Optical photons, with their long-distance and near-noiseless propagation along room-temperature fibers, are uniquely placed to tackle this challenge. We will study nanophotonic devices to connect several smaller quantum processors into a large quantum computer. Doing so, we will establish a new interdisciplinary team in photonics and quantum engineering.

Our new team is part of the Quantum Technology division of the Department of Microtechnology and Nanoscience (MC2). We work with the experimentalists in the Photonics division and the theorists at the Applied Quantum Physics division. The larger effort currently has about 50 researchers and is expanding rapidly. Our department hosts the state-of-the-art MC2 Nanotechnology Laboratory cleanroom, the largest such facility in Northern Europe. We have cutting-edge cryogenic, microwave and optical measurement capabilities at our disposal, including seven dilution fridges. We are in a position to build and operate large-scale quantum processors!

Major responsibilities
As a PhD student, your main responsibility is to conduct research. You will be expected to help develop the team and contribute with your creative ideas. The ideal candidate has experience with nanofabrication, photonics, cryogenics and/or superconducting circuits. 

Qualifications
To qualify for these positions you should have a Master’s degree in Photonics, Physics, Applied Physics, Electrical Engineering, Nanotechnology, or equivalent by the starting date at the latest. Candidates holding a Bachelor’s degree may qualify in certain cases. You need to be fluent in English (spoken and written). 

We value a collaborative attitude and an interest in working both independently and collaboratively in a team environment, sharing best practices and assuming responsibility. Self-motivation, attention to detail, and a problem-solving analytical ability are important personal qualities for these positions.

Position summary
Full-time temporary employment. The position is limited to a maximum of five years and your starting date is negotiable. We offer a competitive salary and excellent working conditions!

Chalmers continuously strives to be an attractive employer. Equality and diversity are substantial foundations in all activities at Chalmers.

Our offer to youChalmers offers a cultivating and inspiring working environment in the dynamic city of Gothenburg
Read more about working at Chalmers and our benefits for employees.

Application procedure
The application should be marked with Ref 20210133 and written in English. The application should be sent electronically and be attached as pdf-files, as below:

CV: (Please name the document: CV, Family name, Ref. number)
• CV
• Other, for example previous employments or leadership qualifications and positions of trust.
• Two references that we can contact.

Personal letter: (Please name the document as: Personal letter, Family name, Ref. number)
1-3 pages where you:
• Introduce yourself
• Describe your previous experience of relevance for the position (e.g. education, thesis work and, if applicable, any other research activities)
• Describe your future goals and future research focus

Other:
• Add web links to your three best publications or preprints (if any) and your thesis, if available. Add a short description (a few sentences) of each of your three best publications (if any) and your contributions to it.
• Attested copies and transcripts of completed education, grades and other certificates, e.g. TOEFL test results.

Please use the button at the foot of the page to reach the application form. The files may be compressed (zipped).

Application deadline: Applications are reviewed continuously. The positions are open until filled.

For questions, please contact:
Assistant Professor Raphaël Van Laer, QTL
E-mail: raphael.van.laer@chalmers.se

*** Chalmers declines to consider all offers of further announcement publishing or other types of support for the recruiting process in connection with this position. *** 
   



Chalmers University of Technology conducts research and education in engineering sciences, architecture, technology-related mathematical sciences, natural and nautical sciences, working in close collaboration with industry and society. The strategy for scientific excellence focuses on our six Areas of Advance; Energy, Health Engineering, Information and Communication Technology, Materials Science, Production and Transport. The aim is to make an active contribution to a sustainable future using the basic sciences as a foundation and innovation and entrepreneurship as the central driving forces. Chalmers has around 11,000 students and 3,000 employees. New knowledge and improved technology have characterised Chalmers since its foundation in 1829, completely in accordance with the will of William Chalmers and his motto: Avancez!


Read the job descirption at the university homepage

Apply

Post expires on Thursday September 30th, 2021

Postdocs in Quantum Nanophotonics


Our ambitious goal at Chalmers is to build a useful quantum computer. The complexity of today’s quantum computers must be increased massively to solve problems of practical significance in chemistry, medicine, and others. We are forming a new interdisciplinary team exploring nanoscale optical and superconducting devices to help increase the power of quantum processors. We are seeking experienced postdocs to join us in a unique endeavor at the cutting edge of integrated photonics and quantum engineering.

Information about WACQT, the project and the division
This project is part of the Wallenberg Centre for Quantum Technology (WACQT), a 12-year, billion-SEK initiative started in 2018 with the purpose of advancing Swedish academia and industry to the forefront of quantum technology, and to build a Swedish quantum computer. It is also funded by the European Research Council.

Building a quantum computer requires a multidisciplinary effort involving experimental and theoretical physicists, photonics and microwave engineers, computer scientists, software engineers, and researchers in materials science and nanotechnology. At Chalmers we are developing the quantum devices, control circuits, firmware, and fabrication methods required to make the quantum computer a reality.

Our approach to quantum computing uses high-fidelity cryogenic microwave qubits. However, it is currently impossible to connect the qubits well beyond a single refrigerator while preserving their fragile quantum properties – creating major challenges in scaling. Optical photons, with their long-distance and near-noiseless propagation along room-temperature fibers, are uniquely placed to tackle this challenge. We will study nanophotonic devices to connect several smaller quantum processors into a large quantum computer. Doing so, we will establish a new interdisciplinary team in photonics and quantum engineering.

Our new team is part of the Quantum Technology division of the Department of Microtechnology and Nanoscience (MC2). We work with the experimentalists in the Photonics division and the theorists at the Applied Quantum Physics division. The larger effort currently has about 50 researchers and is expanding rapidly. Our department hosts the state-of-the-art MC2 Nanotechnology Laboratory cleanroom, the largest such facility in Northern Europe. We have cutting-edge cryogenic, microwave and optical measurement capabilities at our disposal, including seven dilution fridges. We are in a position to build and operate large-scale quantum processors!

Major responsibilities
As postdoctoral researcher, your main responsibilities are to lead and conduct research, and to guide junior PhD students. You will be expected to help develop the team and contribute with your creative ideas. The ideal candidate has expertise in nanofabrication, photonics, cryogenics and superconducting circuits. Candidates with experience in some but not all of these will be considered. 

Position summary
Full-time temporary employment. The position is limited to a maximum of two years (1+1), with opportunities to extend beyond 2 years. Your starting date is negotiable. We offer a competitive salary and excellent working conditions!

Qualifications
To qualify for these positions you must have a PhD in Photonics, Physics, Applied Physics, Electrical Engineering, Nanotechnology, or equivalent (by the starting date at the latest). You need to be fluent in English (spoken and written).

We value a collaborative attitude and an interest in working both independently and collaboratively in a team environment, sharing best practices and assuming responsibility. Self-motivation, attention to detail, and a problem-solving analytical ability are important personal qualities for these positions.

Chalmers continuously strives to be an attractive employer. Equality and diversity are substantial foundations in all activities at Chalmers.

Our offer to youChalmers offers a cultivating and inspiring working environment in the dynamic city of Gothenburg
Read more about working at Chalmers and our benefits for employees.

Application procedure
The application should be marked with Ref 20210134 and written in English. The application should be sent electronically and be attached as pdf-files, as below:

CV: (Please name the document as: CV, Surname, Ref. number) including:
• CV, include complete list of publications
• Previous teaching and pedagogical experiences
• Two references that we can contact.

Personal letter: (Please name the document as: Personal letter, Family name, Ref. number)
1-3 pages where you:• Introduce yourself • Describe your previous research fields and main research results• Describe your future goals and future research focus

Other:
• Add web links to your five best publications or preprints and your thesis, if available. Add a short description (a few sentences) of each of your five best publications and your contributions to it.
• Attested copies of completed education, grades and other certificates.

Please use the button at the foot of the page to reach the application form. The files may be compressed (zipped).

Application deadline: Applications are reviewed continuously. The positions are open until filled.

For questions, please contact:
Assistant Professor Raphaël Van Laer, QTL
E-mail: raphael.van.laer@chalmers.se

*** Chalmers declines to consider all offers of further announcement publishing or other types of support for the recruiting process in connection with this position. *** 
   



Chalmers University of Technology conducts research and education in engineering sciences, architecture, technology-related mathematical sciences, natural and nautical sciences, working in close collaboration with industry and society. The strategy for scientific excellence focuses on our six Areas of Advance; Energy, Health Engineering, Information and Communication Technology, Materials Science, Production and Transport. The aim is to make an active contribution to a sustainable future using the basic sciences as a foundation and innovation and entrepreneurship as the central driving forces. Chalmers has around 11,000 students and 3,000 employees. New knowledge and improved technology have characterised Chalmers since its foundation in 1829, completely in accordance with the will of William Chalmers and his motto: Avancez!    


Read the job description at the university homepage

Apply

Post expires on Thursday September 30th, 2021

PhD student position: Photonic-Crystal Surface-Emitting Lasers in III-Ns


As the successful candidate you will play an essential role in the development of a new semiconductor laser with emission in the blue to ultraviolet wavelength regime that has potential applications in water purification, metal processing etc. You will be given the opportunity to work in one of the world-leading groups on blue-UV surface-emitting lasers and combine device design and numerical simulations with device processing and characterization in close collaboration with partners at Chalmers within the project who are experts on photonic crystal design and collaborators at international universities who are experts on epitaxial growth.

Information about the researchThe Photonics Laboratory at the Department of Microtechnology and Nanoscience (MC2), with about 35 researchers, is working on optoelectronics, ultrafast optics and fiber optical communication. Research in optoelectronics, with an emphasis on semiconductor lasers, started at Chalmers in the early 1980’s. Today we have the expertise and infrastructure that covers most parts in surface-emitting laser development, i.e. design and simulation, laser fabrication, and material and device characterization. Realizing lasers in III-N-materials is associated with challenges such as achieving efficient electrical pumping due to the low electrical conductivity of those materials and realizing high quality mirrors to enable cavities with high quality factors. Over the past few years, we have developed nano structuring techniques for tailored optical feedback and a thin-film lift-off process to be able to combine III-N-materials with high-quality mirrors. These have enabled us to demonstrate the world’s first blue vertical-cavity surface-emitting lasers (VCSEL) with a high-contrast grating for polarization pinning and the shortest emission wavelength from an optically pumped VCSEL at 310 nm. With a prestigious collaborative research grant from the Knut and Alice Wallenberg Foundation, we are now expanding our team. Our goal in the project is to explore the use of our technologies to realize photonic-crystal surface-emitting lasers which allows for two-dimensional lasing oscillations to occur over a large area enabling, for example, high optical output powers.

Major responsibilities
As a PhD student in our group you will be exploring different schemes for photonic-crystal surface-emitting lasers in III-N-based materials. Your work will be mainly experimental and you will be trained in device fabrication using state-of-the-art equipment in our clean room as well as characterization of fabricated devices in our new measurement laboratory. In addition, you will have access to our in-house-developed simulation tools for laser design and modeling. The photonic crystal design will be done in collaboration with partners within the project. Your major responsibility as PhD student is to pursue your own doctoral studies, during which you are expected to develop your own ideas and communicate the results of your research verbally as well as in writing. The PhD position is a full-time temporary employment with a starting salary of about 3 000 Euro/month, limited to maximum 5 years. The position includes departmental work, mostly as a teaching assistant, corresponding to about 10% of the working hours.

Qualifications
By the starting date in Aug-Sept, you must have a Master of Science degree or equivalent in Physics or Electrical Engineering, with knowledge in semiconductor physics and optoelectronic devices. Any experience from device simulations, device fabrication in a clean room environment or device characterization will be a merit. You should be able to work independently as well as in a group. A good proficiency in English is a requirement.

Position summary
Full-time temporary employment. The position is limited to a maximum of five years.

Chalmers continuously strives to be an attractive employer. Equality and diversity are substantial foundations in all activities at Chalmers.

Our offer to youChalmers offers a cultivating and inspiring working environment in the dynamic city of Gothenburg
Read more about working at Chalmers and our benefits for employees.

Application procedure
The application should be marked with Ref 20210187 and written in English. The application should be sent electronically and be attached as pdf-files, as below:

CV: (Please name the document: CV, Family name, Ref. number)
• CV
• Other, for example previous employments or leadership qualifications and positions of trust.
• Two references that we can contact.

Personal letter: (Please name the document as: Personal letter, Family name, Ref. number)
1-3 pages where you:
• Introduce yourself
• Describe your previous experience of relevance for the position (e.g. education, thesis work and, if applicable, any other research activities)
• Describe your future goals and future research focus

Other documents:
• Copies of bachelor and/or master’s thesis.
• Attested copies and transcripts of completed education, grades and other certificates, e.g. TOEFL test results.

Please use the button at the foot of the page to reach the application form. The files may be compressed (zipped).

Application deadline: 19 May, 2021

For questions, please contact:
Professor Åsa Haglund, Photonics Laboratory
E-mail: asa.haglund@chalmers.se
Phone: +46(0)31-772 1592

*** Chalmers declines to consider all offers of further announcement publishing or other types of support for the recruiting process in connection with this position. *** 
   



Chalmers University of Technology conducts research and education in engineering sciences, architecture, technology-related mathematical sciences, natural and nautical sciences, working in close collaboration with industry and society. The strategy for scientific excellence focuses on our six Areas of Advance; Energy, Health Engineering, Information and Communication Technology, Materials Science, Production and Transport. The aim is to make an active contribution to a sustainable future using the basic sciences as a foundation and innovation and entrepreneurship as the central driving forces. Chalmers has around 11,000 students and 3,000 employees. New knowledge and improved technology have characterised Chalmers since its foundation in 1829, completely in accordance with the will of William Chalmers and his motto: Avancez!


Read the job description at the university homepage

Apply