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Jobin Yvon
offer two types of single channel detectors for use with scanning
spectrometers - Photomultiplier Tubes (PMT) and Solid
State Detectors.
For multichannel applications with spectrographs, a range of CCD
Detectors is available.
The
Photomultiplier Tube (PMT) Detector
PMT
detectors typically offer much higher sensitivity than solid state
detectors and operate effectively in the UV/VIS and NIR. However,
typically their spectral coverage is limited to about 950nm. PMT
detectors also require high voltage power supplies.
The PMT
detectors offered by Jobin Yvon are high quality PMTs in ambient or
water cooled housings and head-on or side-on configurations.
|
Model |
PMT
Type, Cooling & Housing |
Spectral Range |
Notes |
|
1911(F or G)
|
R928
multi-alkali PMT
Ambient cooled
Side window housing |
190-860nm |
Requires HV
source between 200-1200V
|
|
1912(F or G)
|
S1 R406 PMT
Water / TE cooled
Side window housing
|
400-1100nm |
Requires HV
source and can go to 1500V. Should use current input, although photon
counting can be approximated. Also includes 1630C field lens adapter
|
|
1913(F or G)
|
R943-02
GaAs PMT
Water / TE cooled
End-on
window housing
|
200-930nm |
Photon
counting recommended. Requires 1500V for HV supply, can go to 1800V.
Also includes 1630C field lens adapter.
|
|
1914(F or G)
|
R928
multi-alkali PMT
Water / TE cooled
Side window housing
|
190-860nm |
Requires HV
source and can go to 1500V. Use current input or photon counting.
Also includes 1630C field lens adapter.
|
Solid State Detectors
Solid state
detectors are opto-electronic devices used to convert incident
photons to electronic signals. Available with wavelength ranges from
below 200nm to beyond 20µm, solid state detectors offer
sensitivity, dependability, cost and efficiency.
Jobin Yvon
has a large number of solid state detectors that cover any
application. They are available as ambient, thermoelectric, or liquid
nitrogen cooled depending on your sensitivity needs.
Solid state
detectors can be divided into three classes: photoemissive,
photoconductive and dual colour.
Photoemissive
detectors are fast, sensitive detectors which
generally do not require lock-in amplifiers and choppers except for
low-light applications where a chopper and lock-in are recommended.
Their upper spectral range is limited to about 5µm.
Photoconductive
detectors are slower and not as sensitive but
are available up to 12µm or beyond. A chopper and lock-in are
required with photoconductive detectors.
Dual Colour detectors
are sandwich detectors with usually a silicon detector in front and a
second detector behind. The silicon operates up to 1.1µm above
which it becomes transparent and the second detector cuts in.
Detector efficiency of the silicon drops by about 40%, the second
detector efficiency remains the same. Dual colour detectors
incorporating PbS and PbSe require a chopper and lock-in amplifier
which are also recommended for rest.
To maximise
the sensitivity of the solid state detectors, we offer an Infrared
Detector Housing for use with all the DSS detectors. The housing
includes an elliptical mirror which concentrates the signal at a 6:1
ratio on a 90 degree beam path. By using mirror optics, the energy is
at focus on the detector at all wavelengths.
|
Type |
Cooling |
Spectral Range |
NEP |
Notes |
|
Photoemissive
Detectors |
|
|
|
|
|
Silicon (Si) |
Uncooled |
0.2 - 1.1µm |
- |
Unamplified.
Large area 10x10mm. NEP determined by analogue input |
|
Silicon (Si) |
Uncooled |
0.3 - 1.1µm |
2 x 10-14 |
Preamplified.
Requires +/-15V |
|
Germanium (Ge) |
Uncooled |
0.8 - 1.8µm |
7 x 10-13 |
Preamplified.
Requires +/-15V |
|
Germanium (Ge) |
TE Cooled |
0.8 - 1.75µm |
5 x 10-14 |
Preamplified.
Requires +/-15V |
|
Indium
Gallium Arsenide
(InGaAs) |
Uncooled |
0.8 - 1.7µm |
6 x 10-14 |
Preamplified.
Requires +/-15V |
|
Indium
Gallium Arsenide
(InGaAs) |
TE Cooled |
0.8 - 1.65µm |
1 x 10-14 |
Preamplified.
Requires +/-15V |
|
Indium
Gallium Arsenide
(InGaAs) |
LN Cooled |
0.8 - 1.6µm |
1 x 10-15 |
Preamplified.
Requires +/-15V |
|
Indium Arsenide
(InAs) |
Uncooled |
1 - 3.6µm |
2 x 10-10 |
Preamplified.
Requires +/-15V |
|
Indium Arsenide
(InAs) |
TE Cooled |
1 - 3.55µm |
1 x 10-11 |
Preamplified.
Requires +/-15V |
|
Indium Antimonide
(InSb) |
LN Cooled |
2 - 5.5µm |
1 x 10-12 |
Preamplified.
Requires +/-15V |
|
Photoconductive
Detectors |
|
|
|
|
|
Lead
Sulphide (PbS) |
Uncooled
|
1 - 3µm |
2 x 10-12 |
Preamplified.
Requires +/-15V
Chop speed 100-500Hz |
|
Lead
Sulphide (PbS) |
TE Cooled
|
1 - 3µm |
1 x 10-12 |
Preamplified.
Requires +/-15V
Chop speed 100-500Hz |
|
Lead Selenide
(PbSe) |
Uncooled
|
1 - 5µm |
5 x 10-11 |
Preamplified.
Requires +/-15V
Chop speed 1KHz |
|
Lead Selenide
(PbSe)
|
TE Cooled
|
1 - 5µm |
2 x 10-11 |
Preamplified.
Requires +/-15V
Chop speed 1KHz |
|
Mercury Cadmium
Telluride (HgCdTe) |
TE Cooled
|
1 - 12µm* |
5 x 10-11 |
Preamplified.
Requires +/-15V
Chop speed 1KHz.
*Wavelength
response can be modified with loss in range. |
|
Mercury Cadmium
Telluride (HgCdTe)
|
LN Cooled
|
1 - 12µm* |
5 x 10-12 |
Preamplified.
Requires +/-15V
Chop speed 1KHz.
*Wavelength
response can be modified with loss in range. |
|
Dual
Colour Detectors |
|
|
|
|
|
Si/InGaAs |
Uncooled |
0.3 - 1.7µm |
- |
Preamplified.
Requires +/-15V |
|
Si/InGaAs |
TE Cooled |
0.3 - 1.65µm |
- |
Preamplified.
Requires +/-15V |
|
Si/Ge |
TE Cooled |
0.3 - 1.75µm |
- |
Preamplified.
Requires +/-15V |
|
Si/PbS |
TE Cooled |
0.3 - 3µm |
- |
Preamplified.
Requires +/-15V |
|
Si/PbSe |
TE Cooled |
0.3 - 5µm |
- |
Preamplified.
Requires +/-15V |
|
Si/InAs |
Uncooled |
0.3 - 3.6µm |
- |
Preamplified.
Requires +/-15V |
|
Si/InAs |
TE Cooled |
0.3 - 3.55µm |
- |
Preamplified.
Requires +/-15V |
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