• DH_GE Ge detector 800-1800nm

Housing a 5mm diameter active area germanium photodiode (800-1800nm), the DH_Ge is operated in the photovoltaic mode. The photocurrent generated by this detector is best measured using the 487 picoammeter or the 477 pre-amplifier followed by the 496 lock-in amplifier.

The mounting flange supplied with the DH_Ge is compatible with the entire range of Bentham monochromators and accessories.

Core benefits


  • 5mm diameter active region Germanium detector
  • Operated in either the DC or AC regimes
  • Compatible with Bentham's entire range of monochromators and accessories
  • Suitable for free standing applications
  • Recommended for use with 400 series detection electronics


Material Germanium
Active area 5mm diameter
Spectral response range 800-1800nm
Operating mode Photovoltaic
Dark current (typ.) <1pA
Shunt resistance (typ.) 15kΩ
Peak wavelength (typ.) 1500nm
Peak responsivity (typ.) 0.90 A.W-1
NEP 1.5 x 10-12 W.H-1/2
Max. operating temperature -20 to +60°C


Connector BNC
Compatibility 4 x M3 clearance holes in Bentham slit pattern
Dimensions 80L x 50W x 18H (mm)

Ordering Information

DH_GE_5 Germanium photodiode

Share this:

The Bentham Standard

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

Call us on +44 118 975 1355 or email us

You are currently offline. Some pages or content may fail to load.