Technology - Discrete Amplification (DA)

The research team at Amplification Technologies Inc. has developed a new approach for the detection of low-level signals - multichannel Discrete Amplification (DA) - that allows the simultaneous attainment of very high gain, high speed and ultra-low excess noise in a silicon device. The Discrete Amplification (DA) involves three basic functions::

  • Distributing individual signal electrons into a separate independent amplification channel
  • Amplifying each individual signal electron in a separate channel to a readable charge packet
  • Reading the amplified charge packets

Amplification Technologies' DA photodetectors could function in both analog and photon counting modes. The DA photodetectors provide:

  • Photon-counting level sensitivity
  • Wide spectral range
  • Relatively flat spectral sensitivity curve
  • High photon detection efficiency
  • Wide dynamic range
  • Fast response
  • High voltage stability
  • High thermal stability

See below for device characterisitics.  More information to be made available soon.

Characteristics of DA Photon Detectors

 

Spectral Response

 

 

Dynamic Range
  • High photon detection efficiency at high dynamic range

 

Histogram
Pulse response

Short rise-fall time for a one electron pulse is characteristic of DA photodetectors.

 

Gain Voltage
Parameter
Definition
Unit
DAPD 
Temperature coefficient of reverse bias U
dV/dT
mV/˚C
20 - 30
Temperature coefficient of Gain
dGain/Gain/dT
%/˚C
0.1 - 0.5
Temperature coefficient of PDE
dPDE/PDE/dT
%/˚C
0.1 - 0.6
Overvoltage
V - Vbr
V
7 - 20
High voltage and temperature stability.

 

 

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