Ultra Staff
21 Sep 2012







Mike Towrie,  Ian Clark,  Greg GreethamIgor SazanovichGabriel Karras​,  Emma Gozzard​Paul Donaldson​

 Prof Mike Towrie​ - Head of ULTRA Facility


​​​​Research Interests: Ultrafast photochemistry, physics & biology, time resolved linear and non-linear IR and Raman spectroscopy, ultrafast and imaging instrument development, detectors and laser sources.

Background: PhD. University of Glasgow. Resonance Ionisation Mass Spectroscopy.

Honorary Professorship at the University of Sheffield.

Meggers Award 2002, 2006 & 2020

Mike joined the LSF in 1989 and his research has centred on development and scientific application of lasers, detectors and spectroscopic and imaging instrumentation including the Raman Kerr Gate, the PIRATE time resolved infrared facilities, the STFC & BBSRC funded ULTRA facility and the (STFC Technology Partnership) Tweezers Nanoprobe microscope.

He is author and co-author on over 190 publications and has 3 patents relating to optical tweezers and sensors.

Email: mike.towrie@stfc.ac.uk;   Tel: 01235 446141

Dr Ian Clark

Ian Clark

Instrument Scientist

Meggers Award 2006

Ian obtained his PhD in time-resolved infrared spectroscopy from the University of Nottingham in 1997 before joining the STFC in the same year. Since that time, Ian has worked using the majority of the facility’s time-resolved techniques.

Ian has recently worked on developing a micro-bolometer array for focal spot size measurement of one or more infrared beams (doi:10.20944/preprints201912.0085.v1).  This development is a great aid when it comes to the setup of time-resolved infrared and 2D-IR experiments saving many hours of time.

Email: ian.p.clark@stfc.ac.uk;  Tel: 01235 446807

Dr Greg Greetham

Greg Greetham

Instrument Development Leader

Greg gained academic experience in physical chemistry at the University of Leicester and ETH Zurich and industrial experience with ultrafast laser and CCD camera technology development in France and Germany.

Greg joined the CLF at the beginning of the STFC & BBSRC funded ULTRA project to develop the scientific application of ultrafast lasers and molecular dynamics spectroscopy techniques, such as 2D-IR and Femtosecond Stimulated Raman Spectroscopy. Since then, he has had a key role in developing all the ULTRA laser and experimental laboratories and their control systems, as well as supporting ULTRA’s diverse user program. He is currently working on technology overlaps between ULTRA and Artemis, the CLF’s XUV laser facility.


Email: greg.greetham@stfc.ac.uk;  Tel: 01235 446299

Dr Igor Sazanovich

Igor Sazanovich

Instrument Scientist

Igor graduated from Belarusian State University in Minsk, and obtained his Ph.D. from B.I. Stepanov Institute of Physics in Minsk. Igor joined the LSF in 2013 to support the maintenance of the ULTRA laboratory infrastructure, to provide visiting scientists technical and scientific support, to work with the team to develop instrumentation in time resolved spectroscopic and laser-based imaging techniques, and to support operation of lasers in the Laser Loan Pool. Igor has gained academic experience in time resolved laser spectroscopy applications and instrumentation development at B.I. Stepanov Institute of Physics, Institute of Physical Chemistry in Warsaw, Wageningen University, Washington University in St. Louis, and the University of Sheffield.

Email: igor.sazanovich@stfc.ac.uk;  Tel: 01235 446285

Dr Gabriel Karras

Gabriel Karras

​​​​Research Interests: Vibrational Surface SFG, nonlinear optics, development of novel light sources, photo-electron spectroscopy of gas phase molecules, ultra-fast dynamics.

Background: Gabriel obtained his PhD degree in Physics in Greece. His expertise lies in the domains of AMO and Chemical Physics and he has been using and manipulating a wide range of laser light sources to study fundamental and applied physical phenomena.

Gabriel joined the Ultra team in August 2019 to lead the activity of the facility in the surface sum frequency generation spectroscopy and further develop its capabilities towards the ultra-short laser pulse regime. He is interested in developing new experimental approaches like the EVV 2D-IR spectroscopy, secondary sources and applications for the 100 kHz IR upgrade project and the rest of the Ultra lasers. In addition he maintains his curiosity and interest in more fundamental aspects like the study and control of ultra-fast dynamics in complex molecular systems using photo-electron spectroscopy.

ORCID: 0000-000-9629-8336

Email: gabriel.karras@stfc.ac.ukTel: 01235 446762

Dr Emma Gozzard


Emma joined the ULTRA Facility in February 2016. She coordinates ULTRA Facility operations and manages the chemistry preparation laboratory.  Emma also holds the role of Facility Access Panel Coordinator and manages the process and procedures for Facility access and the biannual access panel meetings for both the ULTRA and OCTOPUS Facilities.

Prior to her role with ULTRA, Emma worked as Analytical Chemistry Laboratory Manager for NERC’s Centre for Ecology and Hydrology, and as a Postdoctoral Research Fellow at the University of Queensland in Australia. She gained her Ph.D. in fluvial geochemistry from the University of Newcastle upon Tyne in 2008.

Email: emma.gozzard@stfc.ac.uk;  Tel: 01235 567716​

Dr Paul Donaldson

Paul Donaldson

Further information on Paul and his UKRI Future Leaders Fellowship can be found here.

Email: paul.donaldson@stfc.ac.ukTel: 01235 567878

Contact: Towrie, Mike (STFC,RAL,CLF)