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Laboratory of applied optics at the micro- and nano-scale

Laboratory of applied optics at the micro- and nano-scale

The micro- and nano-scale applied optics laboratory is active in the fields of bio-medical imaging, optical spectroscopy and digital holography.

We are equipped with several coherent and incoherent light sources and develop imaging tools to improve the quality and specificity of the images produced for different applications. In particular, we aim to optimise image acquisition methods for artificial intelligence tasks.

Using spectroscopic techniques involving Raman scattering and fluorescence emission, we have developed expertise in aerosol particle detection and remote temperature measurement using optical fibres.

Équipement(s): 
  • LASER sources: femtosecond oscillator (centred at 800 nm and pulse duration < 10 fs), 5W and 10W pump laser, picosecond laser, centred at 1550 nm.
  • Incoherent sources with core wavelengths from UV to near infrared (NIR) and broad and narrow spectra.
  • Bright field microscope with resolution < 1 μm
  • Optical Fluorescence Tomograph (OPT): field of view of a 5x5 mm2 projection, spatial resolution <28 μm in a 5x5x5 mm3 volume
  • Holographic imaging system: field of view 4x4 mm2, spatial resolution <2.7 μm
  • Micrometric drop generator 1 kHz (Drop on Demand)
  • Extended depth of field optical coherence tomography (OCT): tomogram volume 200x200x50 m3, lateral spatial resolution <0.8 μm and axial <2 μm
Lien: 
Reference

Contact

Head of laboratory

Jérôme Extermann
HEPIA
Rue de la Prairie 4
1202 Genève
Switzerland