CETAL | PhIL | Research | Optical Metrology Laboratory


Our research group focus on research, setups development but also on characterization/ calibration and validation services for field spectrometers metrology, light sources radiometry, reflection and transmittance (total, diffuse and specular), detectors quantum efficiency, UV, VIS, IR emitters. Our goal is to obtain high quality, accurate and traceable measurement results using our laboratory standards: integration sphere spectral radiance/luminance standard with variable adjustment of the luminance level between 100 – 20000 fL, OL FEL – High-Precision Spectral Irradiance Standard 1000W, OL 480 – Variable Temperature Black Body Radiation Standard. Spectral measurements within 200 up to 20000 nm spectral range can be performed using the modular spectroradiometric system OL750 with double monochromator together with High-stability DC precision current power supplies, a series of high sensitivity detector modules covering the entire spectral range and collimating optics modules for different measurements purposes.

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Relevant publications:

  • Sen, R., L. Mihai, M. Straticiuc, I. Burducea, D. Ighigeanu, D. Sporea, and L. Petit. "Irradiation of Er3+, Yb3+ doped phosphate glasses using electrons and protons." Ceramics International 46, no. 16 (2020): 26388-26395. https://doi.org/10.1016/j.ceramint.2019.11.165
  • Mihai, L.; Mac Arthur, A.; Hueni, A.; Robinson, I.; Sporea, D. Optimized Spectrometers Characterization Procedure for Near Ground Support of ESA FLEX Observations: Part 1 Spectral Calibration and Characterisation. Remote Sens. 2018, 10, 289. https://doi.org/10.3390/rs10020289
  • Čermák, J., Mihai L., Sporea D., Galagan Y., Fait J., Artemenko A., Štenclová P., Rezek B., Straticiuc M., Burducea I. "Proton irradiation induced changes in glass and polyethylene terephthalate substrates for photovoltaic solar cells." Solar Energy Materials and Solar Cells 186 (2018): 284-290. https://doi.org/10.1016/j.solmat.2018.06.046
  • Sporea, D., Mihai L., Sporea A., Vâţã I. "Optical and THz investigations of mid-IR materials exposed to alpha particle irradiation." Scientific reports 7, no. 1 (2017): 1-7. https://doi.org/10.1038/srep40209

Ongoing collaborations:

  • National Institute for R and D in Microtechnologies – IMT, Romania.
  • University of Edinburgh, Scotland.
  • University of Zurich, Switzerland.
  • Centre for Environmental and Climate Research, Lund University, Sweden.
  • University of Valencia, Spain.
  • University of Helsinki, Finland.


Research activity includes spectroscopic characterization, biophotonics, optical metrology, fiber optics and vibrometry. More info...