DigiTect Detectors0 pages

Bruker Optics
Product Note M25-01/07
DigiTect detectors
for Bruker Optics
VERTEX and TENSOR
series FT-IR-spectrometers
Bruker Optics offers a broad variety of different types of
detectors which provide optimum results and maximum
experimental flexibility. The full spectral range from the very
far IR (or THz) through the mid and near IR up to the visible
and UV spectral ranges are covered. The advanced DigiTect
detector technology prevents external signal disturbances
Bruker Optics DigiTect detector technology (US Patent
5,963,322) together with the applied data acquisition
electronics of the TENSOR and VERTEX series spectrometer provide as a final result oustanding signal-to-noise-ratio.
In the following table the major DigiTect advantages are
listed.
Detector characteristics
DETECTORS
(HE-NE) LASER
= 0.6328 µm
P
13
Ga
DETECTIVITY
WAVELENGTH
1000 µm
100 µm
0
2
D5
Si
10
D5
424
SD
aA
InG
12
I
TE
11
TE
4
sD
25
D4
InA
G
e
23
D211-F
7
42
D
As
a
nG
10
10 µm
1µm
logD* [cm Hz/W] 250nm
and guarantees the highest signal-to-noise ratios.
The data acquisition of the VERTEX and TENSOR series
FT-IR spectrometers are based on 2-channel delta-sigma
ADC’s with true 24-bit dynamic range which are integrated
into the detector preamplifier electronics.
DigiTect advantages
Si Bolometer D211
13
InS
4
bD
g
3
31
T D 16
MC T D3
MC
SiB
5
09
GS
LaT
D
25000 13000
10000 4000
40000
UV VIS
NIR
room temperature
LN
LHe
D31
T
MC
KBr/
0
D32
DLa
Csl/
1
D30
g
g
201
GS D
g
LaT
PE/D
1000
MIR
302
D
TGS
g
400
g
40
100
WAVENUMBER (cm )
think forward
-1
FIR
10
4
g
g
True 24 bit dynamic range
No gain-switching artefacts
Parallel dual channel technology
Integrated detector electronics
Short analog signal lines
No disturbing “spikes” in the IR spectrum
Compact electronics design
Well suited to harsh environments.
FT-IR