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Spectroscopic Magneto - Optic Rotation
Measurement System
Faraday Rotation Measurements

Model: HO-VIS214ORMS

It is designed for Faraday rotation angle measurements in the range of wavelength 385nm to 845nm. Magnetic field dependency of Faraday rotation can be measured precisely with this equipment. Working of this Faraday Effect Measuring Equipment is based on the rotation analyzer method. Max. magnetic field of 15,000 Gauss can be generated at pole gap of 12mm. Optical rotation measurement resolution is ± 0.01 deg.

By using optional device, thermal dependence can be also measured. It is possible to evaluate thermal dependency property in the range of -70 to 300°C, because it can be designed to mount heating chamber and cryostat. The software allows users to control the sample temperature and magnetic field.

    Light source :     Spectra 20W Quartz halogen lamp
    Polarization analysis method :     Rotation analyzing method
    Cuvette :     10 mm path length glass cuvette
        (Custom holders can be provided on request)
    Sample chamber options :     High / low temperature sample holder
    Sample moving stage :     X, Y & Z axis positioner
    Travel :     X, Y & Z (± 5mm)
    Positioning resolution :     10 micron
    Angular resolution :     0.1 deg.
    Electro magnet Unit :     PC controlled constant current operation
    Cooling :     Water cooled
    Max. magnetic field :     1.5 Tesla @ 12mm pole gap
    Min. field Detection :     1 Gauss
    Field detection :     Hall probe based (PC based field measurement)
    Feed back of magnetic field :     Feed back as the sensor of hall element
    Chiller :     5 ~ 25°C chilling water (for cooling electromagnet)
    Power supply for electro magnet :     Bi-polar type ( Max. ± 90V / 5A )
        2kVA AC220V 50Hz
    Control unit :     1kVA AC220V 50Hz
    Software :     Spectra ORMS software

    Flexible and Adaptable Optical Layout

    385 - 845 nm Measurement Range

    0.009 Degree Optical Rotation Resolution

    Option for fully automatic control

    Magnetic field detecting sensor

    Magnetic field feedback facility


Model  :  HC 85

Sample chamber can be heated from room temperature to 200°C to measure temperature dependence.

Temperature Range from RT to 85°C, PID Temperature control

Setting resolution  :  0.1°C

Thermo sensor  :  Pt 100 Ohms


Model  :  NC 70

Sample holder for low temperature ( Nitrogen CRYOSTAT)

Chamber to cool sample around to -70°c by liquid nitrogen.

Setting resolution  :  1°C

Thermo sensor  :  Pt 100 Ohms


Model  :  TE 05

Heating / cooling method by TE cooler

Temperature range, -5 to 40°C

Thermo control method  :  PID control

Thermo stability  :  ± 0.5°C

When options are mounted on the equipment, max. magnetic field may be reduced.

Custom magneto-optical system can be supplied.
Special sample stages can be provided for precision movement of the sample about vertical and horizontal axes


    Optical rotation measurement resolution  :  0.009 degree (at transparence more than 20%)

    Detecting sensitivity  :  0.009deg.

    Optical rotation measuring range  :  ± 90 deg.

    Measuring wavelength range  :  385nm - 845nm

    Spectral bandwidth  :  1nm ( Variable band pass up to 10nm)

    Max. magnetic field  :  15,000 Gauss at 12mm pole gap

    Min. field detection  :  1 Gauss

    Magnetic field preciseness  :  ± 0.05%

Measuring items

    OR Measurement of Thin film, crystal, fluids etc, having Faraday effect

    Measurement Verdet Constant of Transparent Solids and Liquids

    Magnetic field vs. Faraday rotation angle at a desired wavelength

    Faraday rotation angle vs. Wavelength dispersion

    Faraday rotation angle vs. Thermal dependence (Optional Feature)

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