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B749 Datasheet(PDF) 1 Page - Hamamatsu Corporation

Part # B749
Description  Photon drag detector
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Manufacturer  HAMAMATSU [Hamamatsu Corporation]
Direct Link  http://www.hamamatsu.com
Logo HAMAMATSU - Hamamatsu Corporation

B749 Datasheet(HTML) 1 Page - Hamamatsu Corporation

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B749
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
INFRARED
DETECTOR
Photon drag detector
High-speed detector with high sensitivity in the 10 µm band (for CO2 laser detection)
ACCESSORIES (Optional)
l Magnet stand
A1447
l Infrared detector module with preamp
B7506-01
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.
I General ratings
Parameter
Specification
Unit
Active area
f5
mm
Output polarity
Positive
-
I Absolute maximum ratings
Parameter
Symbol
Value
Unit
Operating temperature
Topr
0 to +60
°C
Storage temperature
Tstg
0 to +60
°C
I Electrical and optical characteristics (T=25 °C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Photo sensitivity
S
l=10.6 µm
-1.2
-
mV/kW
Rise time
tr
10 to 90 %
-
-
1
ns
Noise equivalent power
NEP
l=10.6 µm
-4 × 10-3
-W/Hz1/2
Output impedance
-
-
50
-
W
Maximum input light level
-
-
1
-
J/cm2


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