Equipment of the optical laboratories

Bruker FTIR microscope and spectrometers

• Hyperion 3000: FTIR microscope with MCT and FPA (focal plane array) detectors
• Vertex 80V Spectrometer
• IFS 66/V Spectrometer

Variable angle far-infrared ellipsometer with rotating compensator

Custom constructed instrument consists of a vacuum chamber attached to a FTIR spectrometer (Bruker V80v). It operates in the far- and mid-infrared frequency range (30-5000 cm-1). For high signal to noise, a closed cycle bolometer is used. It features theta-2theta goniometer with 0.01 degree precision and laser sensitive detector for precise sample alignment to achieve best reproducibility. Possibility to use a Si based compensator in order to measure depolarisation. It will be possible to measure 12 elements of the Muller matrix in the PCSA arrangement. The ellipsometer is equipped with 4K closed cycle cryostat with differentially pumped goniometer for measurements between 4-300K range. The ellipsometer complements the commercial ellipsometers Woollam IR-VASE and Woollam VASE for the MIR and NIR-UV range present within CEITEC laboratories.

Intended usage

• Precise optical characterisation of the bulk samples and thin films
• Determination of the dielectric function including in-plane and out-of-plane anisotropy.
• Studies of phonon resonances and conducting charge carriers.
• Contactless characterisation of interfacial conductivity and Berreman modes (plasmons) similar to the work presented in PRL 104, 156807 (2010).

The tool is part of the CEITEC Nano core facility.

Woollam VASE ellipsometer – range 190–2500 nm, microfocusing probes

Woollam IR-VASE ellipsometer – range 1.7–30 micrometers

NT-MDT NTegra Spectra

Raman + AFM setup

• EM CCD (VIS) + InGaAs (NIR) camera
• laser wavelengths 325,441, 532 and 1064 nm

Renishaw inVia Raman spectroscope

• objectives 5×, 20×, 50×
• lasers He-Ne, Ar + Fianium supercontinuum setup
• optionaly mounted with liquid nitrogen cryostat

TIRE with rotating Au pin

• Source: light
• Detectors: cold
• Methods: miscellaneous
• Environments: ambient conditions; low-temperature (down to nnn °C)

The tool is part of the CEITEC Nano core facility.