System Description . 27
Optical System
The high-performance Lambda spectrometer features an all-reflecting, double-monochromator
optical system. The optical components are coated with silica for durability. Holographic
gratings are used in each monochromator for the UV/Vis range and the NIR range.
Lambda 650/750/850/950 Spectrometer
The optical system of the Lambda 650/750/850/950 spectrometer is shown in Figure 8.
Figure 8 Schematic of the Lambda 650/750/850/950 optical system
Two radiation sources, a deuterium lamp (DL) and a halogen lamp (HL), cover the working
wavelength range of the spectrometer.
For operation in the near-infrared (NIR) and visible (Vis) ranges, source mirror M1 reflects
the radiation from the halogen lamp onto mirror M2. At the same time it blocks the radiation
from the deuterium lamp.
M6
SBA
Dp
Detector compartment
M11
M11′
PMT (below PbS)
M8
Sample compartment
M13
CBM
M9
M10
M10′
C
RBA
DL
HL
Monochromator I
M2
M1
M3
G2
NIR
Monochromator II
FW
UV/Vis
G1
M5
M7
SA
M4
NIR
UV/Vis
S
R
M12
M12′
M13′
M14
PbS
Summary of Contents for Lambda 1050
Page 1: ...HIGH PERFORMANCE LAMBDA SPECTROMETERS Hardware Guide UV VIS SPECTROSCOPY ...
Page 5: ...Introduction ...
Page 11: ...Safety Practices ...
Page 25: ...System Description ...
Page 32: ...32 High Performance Lambda Spectrometers Hardware Guide ...
Page 33: ...Installing your Lambda Spectrometer ...
Page 54: ...54 High Performance Lambda Spectrometers Hardware Guide ...
Page 55: ...Using the Spectrometer ...
Page 64: ...64 High Performance Lambda Spectrometers Hardware Guide ...
Page 65: ...Maintenance ...
Page 76: ...76 High Performance Lambda Spectrometers Hardware Guide ...
Page 77: ...Appendices ...
Page 82: ...82 High Performance Lambda Spectrometers Hardware Guide ...