Vislielākais burtu izmērs
Lielāks burtu izmērs
Burtu standarta izmērs
Last Update

Absorption spectroscopy

FTIR spectroscopy: EQUINOX 55 (10000-400 cm-1 and 22000-7000 cm‑1spectral region) with diffuse reflection cell;

LABOMED UVVIS spectrometer;

Electron beam induced short-lived absorption.

Luminescence spectroscopy

Different excitation sources are available: pulsed electron beam accelerator (10 ns, 270 keV, 1012 el/pulse), X-rays, YAG:Nd laser (266 nm, 532 nm), nitrogen laser (337 nm), conventional Deuterium and Xenon lamps.

Automatic systems are used for luminescence detection – diffraction monochromator with photomultiplier on exit slit or spectrometer with CCD camera. Time-resolved luminescence is detected using photon counting module and multichannel memory module with minimal time bin 250 ps. Also, luminescence and absorption detection using a fast digital storage oscilloscope is possible.

The equipments for luminescence excitation spectra measurements with two momochromators (Horiba iHR320 and Jobin Yvon TRIAX320)

The equipment for TSL studies with different temperature control modes and software for activation energies calculation.

Praparation by plazma electrolytical oxidation (PEO) method. The development of synthesis Al2O3, ZnO, TiO2, ZrO2 undoped and doped with RE ions.

Laboratory instrumentation and equipment:

  • Vacuum ultraviolet monochromators for optical spectroscopy in the spectral range 120nm<λ<250nm: models McPherson 234/302, VM2.
  • Sources of vacuum ultraviolet light: deuterium lamps with MgF2 crystal windows, range 120nm<λ<350nm: Heraeus PSD 200/D200-VUV and Hamamatsu L10366.
  • Excimer laser PSX-100 (λ=157nm, pulse length 5ns.
  • CCD spectrographs for UV, visible and near IR (NIR) spectral ranges (190nm<λ<1150nm): Andor Newton DU971/Shamrock303 and Hamamatsu 10082CAH.
  • Monochromators for UV –visible- infrared ranges (190nm<λ<2000nm): MDR-2, AMKO-LTI and appropriate photomultiplier and photodiode detectors.
  • Multichannel photon counter for kinetic measurements in 100 nanosecond and longer time intervals: Fastcomtec 7882.
  • Cryostats and He refrigerator system for optical measurements in the temperature range 10K to 300K: Heraeus RW2/RGD210/ROK 10-300.
  • Optical and optomechanical elements for flexibly reconfigurable optical experiments involving luminescence and Raman scattering techniques: holders, positioners, filters, polarizers, light sources detectors, data acquisition systems with custom- developed (Labview) software.
  • Custom-built high-sensitivity Raman spectrometer : 532nm 1W excitation, backscattering geometry, registration by cooled CCD..
  • X-ray source for sample irradiation and X-ray induced luminescence measurements: URS60 (50kV, 15mA)
  • Equipment for measuring of UV-to-NIR range spectral losses in multimode optical fiber waveguides and for studying of losses induced by UV light ("solarization") or by ionizing radiation: optical positioners, fiber-optic SMA905 standard patch cables, excimer lasers, light source Ocean Optics DH200.