Janis Spigulis

Professor, Department of Physics at University of Latvia Head, Biophotonics Laboratory of IAPS Fellow SPIE Address: Raina Blvd. 19, Riga, LV-1586, Latvia E-mail: janis.spigulis[at]lu.lv Telephone / fax: +371 67228249

CV Publications Patents Projects Expert services PhD support Invited/plenary talks

Research interests

With background in atomic spectroscopy, optoelectronics and fibre optics, over the last decade I am mostly involved in biophotonics research. We develop novel optical methods and devices for non-invasive diagnostics and monitoring of human health condition. Spectral, temporal and imaging analysis of optical signals from in-vivo skin may ensure quantitave assessment of cardio-vascular state, skin blood micro-circulation, skin pigmentation and various skin malformations. The techniques developed in laboratory and evaluated in clinical studies are photoplethysmography (PPG), fluorescence, diffuse reflectance spectroscopy and multi-spectral imaging. The expected outcomes of our research are advanced clinical technologies, such as:

ü Fast detection of leg stenosis by bilateral PPG;

ü Remote cardiovascular monitoring by embedded wireless PPG sensors;

ü Remote skin blood perfusion control during anaesthesia by PPG imaging;

ü Remote skin chromophore mapping by multi-spectral imaging analysis;

ü Remote skin melanoma detection by chromophore correlation analysis and parametric imaging;

ü Improved skin laser safety standards with respect to skin “photo-memory” at low power irradiation.

The recent developments in these areas are reviewed here.