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Si-CAL Spectral Responsivity Standard (200-1100nm)

  • Si-CAL Si spectral responsivity reference standard connector
  • Si-CAL Si spectral responsivity reference standard 200-1100nm

Calibrated in our dedicated laboratory, in short-circuit conditions, with respect to standards calibrated by the Physicalish Technische Bundesanstalt (PTB, Germany), a range of calibration intervals within 200-1100nm is on offer.

Housing a 10x10mm active area silicon photodiode (200-1100nm), the Si-CAL delivers enhanced linearity and exceptionally low noise. Operated in the photovoltaic mode, the photocurrent generated by this detector is best measured in using a trans-impedance amplifier such as that of the Bentham 487 or 477.

Core benefits

Features

  • Spectral responsivity standard, 200-1100nm (A.W-1)
  • UV-enhanced silicon photodiode
  • High sensitivity 10x 10mm active area
  • Calibration performed with respect to the Physicalish Technische Bundesanstalt (PTB, Germany)
  • Compatible with the entire range of Bentham monochromators and accessories
  • Recommended for use with the 400 Series of detection electronics 

Electro-Optical

Material Silicon
Active area 10 x 10mm
Window material Quartz
Spectral response range 200-1100nm
Operating mode Photovoltaic
Dark current (typ.) <1pA
Shunt resistance (typ.) 0.2GΩ
Peak wavelength (typ.) 960nm
Peak responsivity (typ.) 0.52 A.W-1
NEP 1.8 x 10-14 W.Hz-1/2
Temperature dependence of responsivity Up to 1%/ °C (λ > 950nm)
Maximum photocurrent 2mA
Maximum operating temperature -20 to +60°C

Calibration

Measurement type Short-circuit spectral responsivity
Wavelength range 200-1100nm
Wavelength interval 5nm
Temperature at calibration 20°C
Traceability Physicalish Technische Bundesanstalt (PTB, Germany)
Calibration frequency Three yearly recommended

Mechanical

Connector BNC
Compatibility 4 x M3 clearance holes (Bentham slit pattern)
Dimensions 80L x 50W x 42H (mm)

Calibrations

CALIBRATION-DH-SI Spectral responsivity calibration 300-1100nm
CALIBRATION-DH-SI-UV Spectral responsivity calibration 250-1100nm
CALIBRATION-DH-SI-UV200 Spectral responsivity calibration 200-1100nm
Si_CAL silicon spectral responsivity reference standard top dimensions
Si_CAL Calibration Standard - Top profile
Si_CAL silicon spectral responsivity reference standard side dimensions
Si_CAL Calibration Standard - Side profile
Si-CAL calibration standard responsive over 200-1100nm
Si-CAL typical spectral responsivity

Ordering Information

DH_SI Silicon spectral responsivity standard
CALIBRATION-DH-SI Spectral responsivity calibration 300-1100nm
CALIBRATION-DH-SI-UV Spectral responsivity calibration 250-1100nm
CALIBRATION-DH-SI-UV200 Spectral responsivity calibration 200-1100nm

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