B749 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – Photon drag detector

INFRARED DETECTOR
Photon drag detector
B749
High-speed detector with high sensitivity in the 10 µm band (for CO2 laser detection)
B749 is a photon drag detector that utilizes the photon drag effect in which carriers created by input photons are dragged in the direction of
photons, generating an electromotive force. B749 ensures high-speed operation even at room temperatures and has high sensitivity in the 10 µm
band, making it well suited to detection of CO2 lasers. An easy-to-use detector module integrated with a preamplifier (B7506-01) is also available.
Features
l Room temperature operation with high-speed response
l Easy-to-use detector module with amplifier (B7506-01)
is available
Applications
l CO2 laser detection
ACCESSORIES (Optional)
l Magnet stand
l Infrared detector module with preamp
A1447
B7506-01
I General ratings
Parameter
Active area
Output polarity
I Absolute maximum ratings
Parameter
Operating temperature
Storage temperature
Symbol
Topr
Tstg
I Electrical and optical characteristics (T=25 °C)
Parameter
Symbol
Condition
Photo sensitivity
S
l=10.6 µm
Rise time
tr
10 to 90 %
Noise equivalent power
NEP l=10.6 µm
Output impedance
-
Maximum input light level
-
Specification
f5
Positive
Value
0 to +60
0 to +60
Min.
Typ.
-
1.2
-
-
-
4 × 10^-3
-
50
-
1
Unit
mm
-
Unit
°C
°C
Max.
-
1
-
-
-
Unit
mV/kW
ns
W/Hz^1/2
W
J/cm²