PhD Studentship for UK Candidates, Simultaneous Generation of Pulsed, High Coherence Red, Green, and Blue (RGB) Wavelengths from a Single Ruby Laser Source for Colour Holography, UK

August 28, 2010

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PhD Studentships, Simultaneous Generation of Pulsed, High Coherence Red, Green, and Blue (RGB) Wavelengths from a Single Ruby Laser Source for Colour Holography, UK Candidates

Job Description: In general, three different lasers are used to obtain the RGB wavelengths necessary for colour holography. This research would focus towards development of a pulsed RGB holographic laser from a single ruby laser employing nonlinear Raman conversion and harmonic conversion techniques.

Colour holography is one of the key technologies being considered for 3 dimensional recording and displays. Pulsed lasers for holography require coherence length that matches the maximum field of depth to be recorded; necessary pulse energy to illuminate the recording volume; good spatial coherence, preferably a TEM00 mode; pulse durations in the order of nanoseconds; and a good combination of RGB (red, green, blue) wavelengths to cover almost all colours which are perceptible by human eye (CIE chart). An RGB laser fulfilling these criteria is essential for recording the master holograms.

In general, three different pulse lasers are used to obtain the three colour outputs. However, the intention of this research is to develop a RGB holographic laser based on a single ruby laser with the following parameters: wavelengths: (694 nm, 514 nm, 488 nm) or (694 nm, 535 nm, 438 nm); pulse width: 30 ns; coherence length: > 1 m; transverse mode: TEM00.

The RGB laser would be constructed from a 694 nm ruby laser that is available at Aberdeen University. The other two wavelengths can be generated from a combination of Raman wavelength shifting (either in hydrogen, deuterium, or Barium Nitrate) and second harmonic conversions. The two combination of RGB wavelengths (as stated above) would be development to compare which combination yields good chromaticity. The research would generally concentrate on the study of the nonlinear wavelength conversion processes with the aim of optimizing the wavelength conversion efficiencies.

Application Procedure

Formal applications can be completed online: http://www.abdn.ac.uk/postgraduate/apply. You should apply for MSc with a view to transfer to PhD in Engineering, to ensure that your application is passed to the correct College for processing. Please note, you should apply at least 4 days before the deadline to allow us to contact you for further information, if required. All applications received up to, and including the closing date, will be processed.

Informal academic enquiries should be directed to Dr T Thevar (t.thevar@abdn.ac.uk), with a copy of your current CV. All general enquiries should be directed to the Graduate School Admissions Unit.

Application Deadline: 15 September 2010

For further Scholarship information

Scholarship Tags: Coherence, generation, High, Scholarship, Simultaneous, UK