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    Experimental equipment

    1. Terahertz spectrometer based on backward-wave oscillators.

    Operational frequency range — 0.03 ТHz – 1.45 ТHzBWO

    Operational beam power — 1mW – 100mW

    Measurable values — spectra of:

    Complex transmission coefficient — Tr* 

    Reflection coefficient— R

    Refractive index — n* = n + ik

    Dielectric permittivity — epsilon* = epsilon1+i epsilon2

    Conductivity — s* = s1 + is2

    Magnetic susceptibility — mu* = mu1 + i mu2

    Dielectric loss angle — tg delta

    Absorption index — a

    Frequency resolution:

    Relative — Delta f/f ~ 10-4 – 10-5

    Average absolute — 0.001 cm-1

    Dynamic range — 40 dB – 60 dB

    Signal-noise ratio — 104 – 106

    Degree of polarization of working radiation— 99.99%

    Time to record a 100 point spectrum:

    Amplitude range T(f) or R(f) — 10s – 20s

    Phase spectrum — 20s– 40s

     

    A description of the BWO spectrometer can be found in: 


    Menlo.jpg

    2. Time-domain Terahertz spectrometer – company MenloSystems Tera K15





    Bruker.jpg3. Infrared vacuum Fourier spectrometer Bruker Vertex 80v.

    Microscope Hyperion 2000

     
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    4. Terahertz puls time-domain spectrometer TeraView TPS Spectra 3000.

    • Measurement of transmission coefficient and dielectric parameters of plane parallel solid samples and liquids.
    • Spectral range 0.06 - 4 THz (2 cm-1 - 133 cm-1).
    • Dynamical range 80 dB.
    • Spectral resolution 0.2 cm-1
    • Temperature measurements 4 - 300 К.
    • Measurements in vacuum.







    5. Fluorimeter Cary eclipse 600Флуориметр.jpg
    • Optical range 290 - 900 nm
    • Spectral resolution 0.2 nm
    • Scan speed 400 nm/sec
    • Thermostate cell 
    • Nitrogen cryostat 




    TechCut.jpg
    6. Precision low speed saw Allied TechCut4
    • 3-6" (75-150 mm) diameter blade range, 0.5" (12.7 mm) arbor hole
    • Variable speed with LED display: 10-500 RPM (10 RPM increments)
    • Cutting capacity: 2" (51 mm) thickness
    • Micrometer sample indexing, 1 µm resolution, 1" (25 mm) range



    MultiPrep.jpg
    7. Precision polishing system Allied MultiPrep

    • Dual axis, micrometer controlled angular positioning of the sample (pitch and roll): +10°/-2.5° range (0.02° increments)
    • Rear digital indicator to display vertical positioning (static) with zeroing function, 1 µm resolution
    • Automatic sample oscillation, adjustable sweep with 6 speeds




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    8. Wire saw model ws22
    • Maximum sample size 40 mm * 40 mm
    • Wire diameter 20 - 60 micron.
    • Wire oscillation frequency 300 movements/min

     

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