VIGO SYSTEM S.A.

Products

PCI



2-11 μm IR PHOTOCONDUCTORS OPTICALLY IMMERSED

Description

The PCI-λopt photodetectors series (λopt - optimal wavelength in micrometers) feature IR photoconductive detector, optically immersed to high refractive index GaAs hyperhemispherical (standard) or hemispherical or any intermediate lens (as option) for different acceptance angle and saturation level.

This series is easy to use, no cooling or heatsink needed. The devices are optimized for the maximum performance at λopt. Cut-on wavelength is limited by GaAs transmittance (~0.9 µm). Bias is needed to operate photocurrent. Performance at low frequencies (<20 kHz) is reduced due to 1/f noise. Highest performance and stability are achieved by application of variable gap (HgCd)Te semiconductor, optimized doping and sophisticated surface processing.

Standard detectors are available in TO39 or BNC packages without windows. Various windows, other packages and connectors are available upon request.

  • Ambient temperature operatiion
  • Perfect match to fast electronics
  • Convenient to use
  • Wide dynamic range
  • Low cost
  • Prompt delivery
  • Custom design upon request
Parameter
Symbol
Unit
PCI-4
PCI-5
PCI-6
PCI-9
PCI-10.6
Optimal Wavelength
λopt
µm
4
5
6
9
10.6
Detectivity*):
peak, 20kHz
opt, 20kHz
D*
cm⋅Hz1/2⋅W-1
 
≥1.0×1010
≥6.0×109
 
≥6.0×109
≥4.0×109
 
≥2.5×109
≥1.0×109
 
≥5.0×108
≥1.0×108
 
≥1.0×108
≥8.0×107
Voltage Responsivity - Width Product @ λopt, 1×1 mm
Rv⋅w
V⋅mm⋅W-1
≥600
≥300
≥60
≥3
≥1
Time Constant
τ
ns
≤1000
≤500
≤200
≤2
≤1
1/f Corner Frequency
1/f
kHz
1 to 20
Bias Current - Width Ratio
Ib⋅w-1
mA⋅mm-1
1 to 2
2 to 4
3 to 10
3 to 15
5 to 20
Sheet Resistance
Rsq
Ω
300 to 1000
200 to 400
100 to 300
50 to 150
40 to 120
Operating Temperature
T
K
~300
Acceptance Angle, F/#
Φ, -
deg, -
36, 1.62

*) Data Sheet states minimum guaranteed D* values for each detector model. Higher performance detectors can be provided upon request.

Type
Optical Area [mm×mm]
0.025×0.025
0.05×0.05
0.1×0.1
0.2×0.2
0.25×0.25
0.5×0.5
1×1
2×2
3×3
4×4
PCI-4
 
 
 
 
X
X
X
X
 
 
PCI-5
 
 
 
 
X
X
X
X
 
 
PCI-6
 
 
 
 
X
X
X
X
 
 
PCI-9
 
 
 
 
X
X
X
X
 
 
PCI-10.6
 
 
 
 
X
X
X
X
 
 

x - standard detectors