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Sotiria Kogou

Sotiria Kogou

Academic Fellow

School of Science & Technology


Sotiria Kogou is an Academic Fellow in the Physics Department, and the coordinator of the mobile activity of the Imaging & Sensing for Archaeology, Art History & Conservation (ISAAC) research group.

Teaching duties include contributions to MSc Medical Imaging, MSc Imaging Matter: From Atoms to Galaxies, and supervisions of MRes Physics projects.

Career overview

  • Academic Fellow in Physics, Nottingham Trent University (2021-current)
  • Research Fellow in Physics, Nottingham Trent University (2017-2021)
  • PhD in Physics, Nottingham Trent University (2013-2017)
  • Research Assistant at Foundation for Research and Technology Hellas - Institute of Electronic Structure and Lasers (2009-2011)
  • BSc in Physics, University of Crete (2010)

Research areas

Areas of research include the application of advanced optical imaging, spectroscopic and remote sensing instruments for non-invasive and non-destructive investigation of materials, and applications of physical sciences to history, art conservation and archaeology.

Areas of research include:

1. Application of advanced optical imaging, spectroscopic and remote sensing instruments for non-invasive and non-destructive material identification

2. Multimodal analysis using a range of complementary imaging and spectroscopic techniques for the in situ and holistic investigation of cultural heritage objects with complex material composition

  • Application of close-range mobile spectral imaging and spectroscopic systems for in situ spectral imaging of paintings, maps and manuscripts, to enable conservation monitoring, archaeological, architectural and art historical studies.
  • Application of ground-based and airborne remote imaging and sensing systems [i.e. remote spectral imaging (in a variety of wavelength ranges), remote laser-based spectroscopy such as Raman, Laser-Induced Breakdown Spectroscopy (LIBS), Laser-Induced Fluorescence (LIF) spectroscopy] at stand-off working distances of tens of metres, developed specifically for the examination of wall paintings, archaeological sites and architectural monuments.

3. Data science: Development of machine learning/AI methods for the rapid analysis of a range of spectral imaging data from reflectance spectral imaging to X-ray fluorescence spectral imaging, and multimodal spectral imaging datasets

4. Interdisciplinary research in the application of physical sciences to archaeology, history and collection care with a particular focus on the history of global connections


ZHANG, Q., CUI, S., LIU, L., WANG, J., WANG, J., ZHANG, E., PENG, J., KOGOU, S., LIGGINS, F. and LIANG, H. , 2021. Deep learning for the extraction of sketches from spectral images of historical paintings. In: H. LIANG  and R. GROVES, eds., Optics for arts, architecture, and archaeology VIII. Proceedings of SPIE, 11784 . Washington: SPIE. ISBN 9781510644021

LI, Y., CHEUNG C. S., KOGOU, S.,HOGG, A., LIANG, H. and EVANS, S. 2021. Standoff laser spectroscopy for wall paintings, monuments and architectural interiors. In Transcending Boundaries: Integrated Approaches to Conservation. ICOM-CC 19th Triennial Conference Preprints, Beijing, 17–21 May 2021, ed. J. Bridgland. Paris: International Council of Museums.

KOGOU, S., SHAHTAHMASSEBI, G., LUCIAN, A., LIANG, H., SHUI, B., ZHANG, W., SU, B., VAN SCAIK, S., 2020. From remote sensing and machine learning to the history of the Silk Road: large scale material identification on wall paintings. Scientific Report 10, 19312,

KOGOU, S., LEE, L., SHAHTAHMASSEBI, G. and LIANG, H., 2020. A new approach to the interpretation of XRF spectral imaging data using neural networks. X-Ray Spectrometry

LI, Y., CHEUNG,C.S., KOGOU, S., LIGGINS, F., LIANG,H., 2019. Standoff Raman spectroscopy for architectural interiors from 3-15 m distances.Optics Express, 27 (22), 31338-31347

READ, M., CHEUNG, C.S., LING, D., KORENBERG, C., MEEK, A., KOGOU, S. and LIANG, H., 2019. A non-invasive investigation of Limoges enamels using both Optical Coherence Tomography (OCT) and spectral imaging: a pilot study. In: H. LIANG and R. GROVES, eds., Optics for Arts, Architecture, and Archaeology VII. SPIE Optical Metrology, Munich, Germany, 24-27 June 2019. SPIE proceedings 11058, 1105803

​Wijsman, S., Neate, S., Kogou, S., Liang, H., 2018. Uncovering the Oppenheimer Siddur: using scientific analysis to reveal the production process of a medieval illuminated Hebrew manuscript. Heritage Science 6, 15.

LIANG, H., MARI, M., CHEUNG, C.S., KOGOU, S., JOHNSON, P. and FILIPPIDIS, G., 2017. Optical coherence tomography and non-linear microscopy for paintings – a study of the complementary capabilities and laser degradation effects. Optics Express, 25 (16), pp. 19640-19653.

KOGOU, S., NEATE, S., COVENEY, C., MILES, A., BOOCOCK, D., BURGIO, L., CHEUNG, C.S. and LIANG, H., 2016. The origins of the Selden map of China: scientific analysis of the painting materials and techniques using a holistic approach. Heritage Science, 4, 18.

​KOGOU, S., LUCIAN, A., BELLESIA, S., BURGIO, L., BAILEY, K., BROOKS, C. and LIANG, H., 2015. A holistic multimodal approach to the non-invasive analysis of watercolour paintings. Applied Physics A. Vol. 121(3), 999-1014 (2015).

M. Oujja,  M. Sanz, E. Rebollar, J. F. Marco, C. Domingo, S. Kogou, P. Pouli, C. Fotakis, M. Castillejo, 2013, Wavelength and pulse duration effects on laser induced changes on raw pigments used in paintings, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 102, pp. 7-14

​Kogou, A. Selimis, G. J. Tserevelakis, P. Pouli, G. Filippidis, C. Fotakis, 2012,  “The use of non-linear microscopy techniques to assess the affected region in the laser cleaning of polymeric coatings”, LACONA IX proceedings, eds K. Birkholzer, N. Luxford, C. Korenberg, M. Strlic and D. Saunders, Archetype, UK, pp.103-107

A. Selimis, G.J. Tserevelakis, S. Kogou, P. Pouli, G. Filippidis, N. Sapogova N. Bityurin and C. Fotakis, 2012, Nonlinear microscopy techniques for assessing the UV laser polymer interactions, OPTICS EXPRESS, vol.20 Issue 4, pp.3990-3996

V. Papadakis, Y. Orphanos, S. Kogou, K. Melessanaki, P. Pouli, C. Fotakis, 2011, IRIS; a novel spectral imaging system for the analysis of Cultural Heritage objects , SPIE,  vol. 8084