Laboratory for optical characterization of materials

Photoluminescence spectroscopy is a contactless, non-destructive method, which provides information about the impurity levels, bandgap, recombination mechanisms, and material quality in general. Our setup, designed and assembled by the team members, enables sensitive and high-resolution steady-state and time-resolved measurements in broad spectral (300-9000 nm) and temperature (4-300 K) ranges. The exceptionally broad spectral range allows us to investigate a wide range of physical phenomena and materials, including semiconductors, glasses, and ceramics.


Key experimental setups:

Low-temperature photoluminescence (4-300K) in the UV – visible-IR- spectral range (200 nm – 9000 nm):

    • A closed-cycle Helium cryostat (Sumitomo);
    • Monochromator and spectrograph: FHR 1000 and  iHR 320 (Horiba); 
    • FTIR spectrometer Nicolet 5700;
    • Detectors: GaAs photomultiplier with water-cooled thermoelectric coolers (R943-02, C10372-02, Hamamatsu;160-930 nm), LN cooled high-purity Ge photodiode (Edinburg Instruments EI-L, 0.8-1.8 µm), Back-illuminated UV enhanced CCD (Synapse BIUV, Horiba, 0.2-1.1 µm),  TE cooled InGaAs (Hamamatsu; 0.5-2.6 µm), LN cooled InSb (2-5.5 µm), LN cooled MCT-A (0.8-22 µm).
    • Light sources: Ar (514 nm), HeCd (325 nm), HeNe (632.8 nm) and solid-state lasers of various wavelengths (473,515, 532, 650, 800, 980, 1064 nm). Passively Q-switched microchip laser PULSELAS-P-355-200 (355 nm, 532 nm, 1064 nm).

    UV/Visible spectrometer 

    • Specord 210 (190-1100nm) equipped with: (a) Oxford Instruments OptistatDN liquid nitrogen optical cryostat enables absorption measurements at temperatures in the range from 77K to 500K; (b) absolute and variable angle reflectance measurement attachment.
    Laboratory for optical characterization of materials

    IPE carries out fundamental and applied research in the scientific fields of photonics, optoelectronics and electronics. In these fields, IPE generates new knowledge and develops new technologies.

    Contact us

    Data box: m54nucy

    IČ: 67985882
    DIČ: CZ67985882