List of activities by country

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NAME	DESCRIPTION
Color Research	• Spectral colour signals in accurate colour measurements • Spectral data analysis • Image analysis and compression • Novel methods for spectral imaging • Spectral video compression • Display technologies • Resolution in spectral measurement • Compression of digital archive image • Spectral face image recognition method • Spectral imaging systems and software
Diffractive Optics and Nanolithography	• Phase masks • Multilevel surface profiles by electron beam lithography and proportional reactive ion etching • Nanolithographic subwavelength-structured optical elements
Fiber optics group	• Novel coherent light sources • Gas sensing technology • Microstructured fibres • Photonic bandgap fibres • Supercontinuum sources • Compact fibre-based sensors
InFotonics Center	• Wave-optical engineering - Application of diffractive optics - Manufacturing technologies for diffractive components - Modern optical measuring technology - Optical sensors • Spectral colour research - Accurate colour measurement - Spectral data and image analysis - Spectral image compression - Novel methods for spectral imaging and processing
Laboratory of Optics and Spectroscopy	• Fourier Transform Spectroscopy • Interferometry (Fourier transform spectrometers) • Mathematical methods of Spectral Analysis (Fourier Self-Deconvolution) • High Resolution Spectroscopy (Fourier transform spectrometer) • Quantum Optics - Bose-Einstein condensation and atom optics - Cold collisions between laser-cooled atoms • Food Industrial Applications
Lighting Laboratory	• Indoor Lighting • Traffic Lighting and Vision • Light Sources and Energy • Lighting Measurements and Testing • Electrical Building Services
Metrology Research Institute	• Electrical instrumentation • Optical radiation measurements - Detector Based Radiometry - Photometry of light-emitting diodes - Spectral Responsivity at UV - Short wavelength coherent light sources... • Length metrology • fibre-Optics - Measurement of fibre Optic Power - Measurement of fibre Nonlinearity... • Quantum Optics (excess coincidences of photons)
Optics group	• Nano-optics - Electromagnetic coherence theory for optical near fields - Degree of polarization in tightly focused fields - Boundary-integral method - Nano-particle spectroscopy • Atom optics • Lasers / Photonics - Generation of Bessel-Gauss beams - Shaping of an excimer-laser beam - Creation of a hollow laser beam using a nematic liquid crystal - Evanescent-wave pumped microcavity laser
Optoelectronics and Measurements Techniques Laboratory	• Wireless sensors and sensor networks for measuring and monitoring various signals and parameters • Embedded testing solutions for wireless devices • Indirect noninvasive optical and non-optical blood pressure measurements • Structure of scattering media
Optoelectronics Laboratory	• III-V semiconductor structures - N containing III-V alloys (eg. GaInNAs) - self-assembled growth of quantum dots strain-induced quantum dots - III-V structures on silicon and germanium substrates - spectroscopy of semiconductor structures • X-ray studies - synchrotron topography of semiconductor wafers - high-resolution x-ray diffraction of micro- and optoelectronic structures • Photonic structures - photonic bandgap materials - waveguides - microsystems (at VTT) • III-V materials - MOVPE of III-V materials - ICP-RIE etching - Metal contacts on nitrides - GaN LED and laser structures
Ultrafast and Intense Optics Group	• Ultrashort pulse generation and manipulation • Dispersion compensation • Super-continuum generation • Optical fibre technology • Thin film coatings