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JOŽEF STEFAN INSTITUTE
Department of Complex Matter
Jamova cesta 39, 1000 Ljubljana, Slovenia

Dynamics of Quantum matter

We explore non-equilibrium many-body dynamics in quantum systems that experience symmetry-breaking, topological, or jamming transitions. These systems encompass superconductors, charge-density wave, and magnetic materials.

Experimental Soft Matter Physics

The research is conducted within the “Light and Matter” research program. The interaction of light with matter is one of the most important fields of physics and optical processes are indispensable in many branches of modern industry.

For students

Are you searching for an exciting and innovative topic for your seminar, summer work, or perhaps for a Masters or Diploma research? Check available topics an start your research journey with us.

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We are searching for talents! If you are searching for PhD position, if you are a motivated postdoc or senior researchers, check open positions and proposed research topics.

Our partners

We strongly believe that collaboration helps provide opportunities. We collaborate with other research institutions, businesses and industry. Learn here about our associates and how to become our partner.

February 6, 2024
The absence of efficient light modulators for extreme ultraviolet - EUV and X-ray photons considerably limits their real-life application, particularly when even slight complexity of the beam patterns is required. In ...

Home / Facilities & Labs / Biomedical Optics Lab

Biomedical Optics Lab

Biomedical optics laboratory comprises a range of noninvasive characterization techniques of human skin including photothermal radiometry and diffuse reflectance spectroscopy.

Location: Room B001

Mid-infrared radiometry

Responsible person: Boris Majaron  boris.majaron@ijs.si

Available instrumentation for mid-infrared (IR) radiometry includes a fast InSb array camera (FLIR SC7500) sensitive to IR radiation with wavelengths between 3.5 and 5.1 mm, and acquisition rate of 380 fps in full-frame mode (320 x 256 px) and above 1000 Hz with quarter-frame subwindowing. A 50 mm and a “microscope” objective (x1) are available, offering a wide range of imaging areas and magnifications. Within the calibrated temperature range of 5–300 °C, the NEdT value is 20 mK.

A liquid nitrogen-cooled single-element InSb detector with custom Si optics is also available for applications which require lower noise and/or faster acquisition rates (up to 50 kHz).

Pulsed lasers with wavelengths of 532, 808, 980, and 1064 nm are available for irradiation of investigated samples, thus allowing active thermography applications.

Optical Spectro-Fluorometer

Responsible person: Boris Majaron  boris.majaron@ijs.si

Spectro-fluorometer Horiba-PTI QuantaMaster 8000 with two photomultipliers allows accurate measurements of fluorescence spectra in UV, visible and near-IR spectral range (300 to 1450 nm), and assessment of fluorescence times down to a few microseconds. Polarization-dependent measurements of both emission and transmission spectra are possible from 300 to 900 nm. The instrument is equipped with continuous and pulsed Xe lamps, and lasers with wavelengths of 808 and 975 nm. Other lasers can be introduced via a fiber-optic port.

Measurements can be performed on liquid samples (with temperature stabilization or ramping from -20 to +105 degrees Celsius) and on solid samples. An integration sphere enables measurements of absorption and emission spectra of optically scattering samples and direct measurements of fluorescence quantum yields.