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• Southampton
• Posted 18th Apr 2012
• 
• Posted by: University of Southampton
• Salary: £27,578 to £33,884
• Job Type: Contract
• Address: University of Southampton
  University Road
  Southampton
  SO17 1BJ
  
• Reference: 091912WF
• This job has been viewed 56 times since it was posted.

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Job Description

Terahertz Laboratories Group Most commercial THz spectrometers are time domain spectrometers; they exhibit a very high signal-to-noise ratio (50 dB) but quite low power (few micro-Watts). The major competing THz technology is that of quantum cascade (QC) lasers, which generate radiation with tens of mWatts of power. However, the power advantage of QC lasers is lost by the lack of sensitive detection techniques, and hence they are not used commercially. Until now researchers have tried to combine the technologies of THz time domain spectrometers and Quantum cascade lasers (QC) but the two geometries have proven very difficult to integrate, with antenna emitters in particular proving incompatible with integration.

However, a new geometry emerged in 2010 that can be used to generate broadband THz pulses and provide an elegant means of coupling a THz pulse into the QC structure, directly, with great efficiency. Our task is to combine the high output power of quantum cascade lasers with the detection sensitivity and broadband nature of state-of-the-art time-domain technology.

The project is an EPSRC funded collaborative project between Physics at the University of Southampton, and  Cavendish and Chemical Engineering at the University of Cambridge.

Our group has expertise in TDS and terahertz emitters, and we are looking for a researcher with experience in QCLs. Expertise in QCLs, cryogenics, cleanroom fabrication and THz-TDS are essential.

Please contact Vasilis Apostolopoulos, email: va2w07@soton.ac.uk for informal enquiries.

The closing date for this post is 1st May 2012. Please apply online through www.jobs.soton.ac.uk or alternatively telephone 023 8059 2750 for an application form. Please quote vacancy reference number 091912WF on all correspondence.