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

  • Si_CAL UV-enhanced Photodiode
  • Si_CAL UV-enhanced Photodiode
Call us:
+44 (0)118 975 1355

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

MaterialSilicon
Active area10 x 10mm
Window materialQuartz
Spectral response range200-1100nm
Operating modePhotovoltaic
Dark current (typ.)<1pA
Shunt resistance (typ.)0.2GΩ
Peak wavelength (typ.)960nm
Peak responsivity (typ.)0.52 A.W-1
NEP1.8 x 10-14 W.Hz-1/2
Temperature dependence of responsivityUp to 1%/ °C (λ > 950nm)
Maximum photocurrent2mA
Max. operating temperature-20 to +60°C

Calibration

Measurement typeShort-circuit spectral responsivity
Wavelength range200-1100nm
Wavelength interval5nm
Temperature at calibration20°C
TraceabilityPhysicalish Technische Bundesanstalt (PTB, Germany)
Calibration frequencyThree yearly recommended

Mechanical

ConnectorBNC
Compatibility4 x M3 clearance holes (Bentham slit pattern)
Dimensions80L x 50W x 42H (mm)

Calibrations

CALIBRATION-DH-SISpectral responsivity calibration 300-1100nm
CALIBRATION-DH-SI-UVSpectral responsivity calibration 250-1100nm
CALIBRATION-DH-SI-UV200Spectral responsivity calibration 200-1100nm
Si_CAL Calibration Standard Dimensions - Top View
Si_CAL Dimensions - Top View
Si_CAL Calibration Standard Dimensions - Side View
Si_CAL Dimensions - Side View
Typical Si-CAL Responsivity
Typical Responsivity of Si-CAL

Ordering Information

DH_SISilicon spectral responsivity standard
CALIBRATION-DH-SISpectral responsivity calibration 300-1100nm
CALIBRATION-DH-SI-UVSpectral responsivity calibration 250-1100nm
CALIBRATION-DH-SI-UV200Spectral responsivity calibration 200-1100nm

The Bentham Standard

We’re with you from the first call to the final result

Call us on +44 (0)118 975 1355 or email us