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The
TVC Jarrell-Ash MonoSpec27 features a triple grating turret rotated
by an external control knob. This turret will hold one, two or three
gratings at the same time. You can change quickly from grating to
grating without removing the cover.
The MonoSpec27
with its three grating mount can be used to maximize the spectral
coverage of the region of interest by, for example, using three
gratings blazed at different wavelengths to give optimum efficiency
over the entire range of interest. Another approach would be to
use three gratings all blazed at the same wavelength but with different
groove spacings, for example, 1200, 600 and 300 g/mm. Using this
combination of gratings with a diode array detector, one can cover
a wide spectral range with the 300 g/mm grating and then zero in
on a region of specific interest with the 600 or 1200 g/mm grating.
Stray light
is at a minimum with the MonoSpec27 due to the Crossed Czerny-Turner
optical design, which also virtually eliminates re-entry spectra.
And, there is no sacrifice of throughput; the monochromator has
an f/number of 3.8. For maximum flexibility in system design, the
entrance and exit slits are in a straight line.
Two configurations
are available: the MonoSpec27 can be a monochromator or a spectrograph.
Spectrograph models are configured with an expanded focal plane
at the exit port. This focal plane is 25 mm wide by 18 mm high with
virtually no vignetting!
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Specifications
|
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Focal
Length:
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275
mm
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Aperture
(f/number):
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f/3.8
|
|
Resolution:
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0.3
nm with 1200 g/mm grating
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Reciprocal
Linear Dispersion:
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3.0
nm/mm with 1200 g/mm grating
|
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Stray
Light:
|
0.001%
|
Popular
Ruled Diffraction Gratings
|
Groves/mm
|
Blaze
Wavelength
|
Useful
Spectral Range
|
Reciprocal
Linear Dispersion nm/mm
|
|
2400
|
260
nm
|
180
nm-550 nm
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1.5
|
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1800
|
250
nm
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180
nm-650 nm
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2.2
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1200
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500
nm
|
350
nm-1.1 µm
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3.0
|
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600
|
500
nm
|
400
nm-1.2 µm
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6.0
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600
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1.0
µm
|
700
nm-2.0 µm
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6.0
|
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300
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2.0
µm
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1.3
µm-3.6 µm
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12.0
|
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150
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4.0
µm
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3.3
µm-7.2 µm
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24.0
|
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100
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6.5
µm
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4.5
µm-10.8 µm
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36.0
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50
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10.0
µm
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7.0
µm-21.0 µm
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72.0
|
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30
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30.0
µm
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21.0
µm-40.0 µm
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120.0
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MonoSpec27
Systems & Accessories
82-497
MonoSpec27
Monochromator
Crossed Czerny-Turner design with 275 mm focal length, f/3.8,
with triple grating turret, and wavelength counter for 1200 g/mm
grating. Requires minimum of one grating (67.5 x 67.5 x 6.4 mm)
and two slits.
82-499
MonoSpec27
Spectrograph
Same as 82-497 except outfitted with coupling flange for OMA (EG&G/PAR)
or OMSA (Princeton Instruments) array detector. Requires minimum
of one grating (67.5 x 67.5 x 6.4 mm) and one slit.
Accessories
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132315-00
Stepping Motor
Drive Kit, to convert MonoSpec27 to a computer controlled scanning
monochromator/spectrograph. Includes motor, digital readout controller
with RS-232 interface, cables, manual, software, and mounting
hardware.
82-474
Monochromator
Conversion Kit, to adapt exit focus tube and slit to MonoSpec27
to convert spectrograph to monochromator.
82-473
Spectrograph
Conversion Kit, to adapt OMA array detector mount to MonoSpec27
to convert monochromator to spectrograph.
00-4167
MonoSpec27
Operator's Manual
11-098
Grating Mount
Alignment bracket/holder for MonoSpec27
Ruled
and Holographic Gratings
64 mm x 64 mm
ruled area on a glass blank 67.5 x 67.5 x 6.4 mm
The following grating assemblies include mounting to the alignment
bracket/holder
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11-082
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Ruled
grating, 2400 g/mm, 250 nm blaze
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11-090
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Ruled
grating, 1800 g/mm, 250 nm blaze
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11-080
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Ruled
grating, 1200 g/mm, 500 nm blaze
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11-081
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Ruled
grating, 1200 g/mm, 300 nm blaze
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11-083
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Ruled
grating, 600 g/mm, 500 nm blaze
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11-084
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Ruled
grating, 600 g/mm, 1.0 µ blaze
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11-085
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Ruled
grating, 300 g/mm, 2.0 µ blaze
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11-086
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Ruled
grating, 150 g/mm, 4.0 µ blaze
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11-087
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Ruled
grating, 100 g/mm, 6.5 µ blaze
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11-088
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Ruled
grating, 50 g/mm, 10.0 µ blaze
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11-089
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Ruled
grating, 30 g/mm, 30.0 µ blaze
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11-092
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Holographic
grating, 2400 g/mm, 190-450 range
|
|
11-093
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Holographic
grating, 1800 g/mm, 190-700 range
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11-094
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Holographic
grating, 1200 g/mm, 200-800 range
|
|
11-095
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Holographic
grating, 600 g/mm, 200-800 range
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11-096
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Holographic
grating, 300 g/mm, 200-800 range
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11-097
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Holographic
grating, 150 g/mm, 200-800 range
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The
following gratings require an 11-098 alignment bracket/holder
| 985301420 |
Ruled
grating, 1800 g/mm, 400 nm blaze
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| 985301422 |
Ruled grating, 1800 g/mm, 500 nm blaze |
| 985301917 |
Ruled
grating, 1200 g/mm, 240 nm blaze |
| 985301920 |
Ruled
grating, 1200 g/mm, 400 nm blaze |
| 985301924 |
Ruled
grating, 1200 g/mm, 600 nm blaze |
| 985301926 |
Ruled
grating, 1200 g/mm, 750 nm blaze |
| 985302917 |
Ruled
grating, 600 g/mm, 240 nm blaze |
| 985302918 |
Ruled
grating, 600 g/mm, 300 nm blaze |
| 985302920 |
Ruled
grating, 600 g/mm, 400 nm blaze |
| 985302926 |
Ruled
grating, 600 g/mm, 700 nm blaze |
| 985302937 |
Ruled
grating, 600 g/mm, 2.5 µ blaze |
| 985303918 |
Ruled
grating, 300 g/mm, 300 nm blaze |
| 985303922 |
Ruled
grating, 300 g/mm, 500 nm blaze |
| 985303930 |
Ruled
grating, 300 g/mm, 1.0 µ blaze |
| 985303938 |
Ruled
grating, 300 g/mm, 3.5 µ blaze |
| 985304921 |
Ruled
grating, 150 g/mm, 450 nm blaze |
| 985304942 |
Ruled
grating, 150 g/mm, 5.0 µ blaze |
| 985305424 |
Ruled
grating, 100 g/mm, 600 nm blaze |
| 985305444 |
Ruled
grating, 100 g/mm, 6.0 µ blaze |
| 985307457 |
Ruled
grating, 40 g/mm, 22.5 µ blaze |
Many additional
options and accessories are available for the MonoSpec 27. Please
contact the factory or your representative for more information.
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