New optoelectronic devices for the Mid-Infrared spectral range open completely new possibilities for portable sensors creation. Using Mid-infrared LED-PD optopairs allows developing an instrument that is smaller, less expensive and versatile.


Photodiodes produced by LED Microsensor NT can be used in a wide temperature range without additional cooling, they do not require appliance of reverse voltage and are operated in a photovoltaic mode (with no reverse bias). Lms36PD-05-R(W) photodiode model has ~3600 nm cut-off and 0.5 mm sensitive area diameter. It has a vast number of applications and mainly used for detection of infrared light for CH4 and other hydrocarbons measurement.

Main features
  TO-18, with a parabolic reflector, with/without window
  Maximum sensitivity range
  2.2-3.4 μm
  Cut-off wavelength
  3.6-3.7 μm
  Dark current (Ur=0,1 V)
  50-1000 μA
   Shunt resistance (Ur=10 mV)
  200-800 Ohm
  >1.0-1.5 А/W
  Noise equivalent power
  (3-9)×10-12 W/Hz1/2
  Specific detectivity
  (4-14)×109 cm×Hz1/2/W

See also: