MonoSpec 18 Monochromator/Spectrograph

The MonoSpec 18 Monochromator/Spectrograph is the ultimate in high quality compact instruments. Only 6.5 x 6.5 x 5 inches, it features much greater user flexibility than any instrument on the market today. The MonoSpec 18's 90° optical configuration lends itself to easy adaptability in OEM system design.

Because its kinematic grating is easily interchanged, the MonoSpec 18 has a wavelength range that extends from 190 nm - 40µm. There are many gratings available to suit a variety of requirements for resolution and dispersion. Plus ... scattered light is at a minimum due to the Crossed Czerny-Turner optical design, which also virtually eliminates re-entry spectra.

By a simple change in the exit flange, the MonoSpec 18 is converted from a monochromator to a spectrograph. The MonoSpec 18 Model 82-479 Spectrograph is configured to provide an expanded focal plane at the exit port when the spectrograph flanges are in place. This unique feature allows the user to interface the MonoSpec 18 with a variety of multielement detectors including CCD, or photodiode systems.

Monochromators are passive optical devices that can be used to present one wavelength of light at a time. They include an optical configuration of lenses and mirrors, a separating element (commonly a diffraction grating), and an optomechanical means for selecting the wavelength of light displayed.

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Specifications
Focal Length:	156 mm
Aperture (f/number):	3.8
Resolution:	0.6 nm with 1200 g/mm grating
Reciprocal Linear Dispersion:	4.5 nm/mm with 1200 g/mm grating
Stray Light:	0.0015%

Popular Ruled Diffraction Gratings

Groves/mm	Blaze Wavelength	Useful Spectral Range	Reciprocal Linear Dispersion nm/mm
2400	260 nm	185 nm-550 nm	2.2
1800	250 nm	180 nm-550 nm	3.3
1200	300 nm	180 nm-550 µm	3.3
1200	500 nm	350 nm-1.2 µm	6.6
600	500 mm	400 nm-1.2 µm	6.6
600	1.0 µm	700 nm-2.0 µm	13.2
300	300 mm	180 nm-750 nm	25.6
300	2.0 µm	180 nm-3.6 µm	37.8
150	4.0 µm	7.0 µm-21.0 µm	75.4
100	6.5 µm	21.0 µm-40.0 µm	128.0
50	10.0 µm	7.0 µm-21.0 µm	108.0
30	30.0 µm	21.0 µm-40.0 µm	180.0

MonoSpec 18 Systems & Accessories

82-477

MonoSpec 18 Monochromator 156 mm focal length, f/3.8. Crossed Czerny-Turner with entrance and exit slits 90° apart. With digital micrometer drive calibrated for a 1200 g/mm grating. Requires one grating and two slits.

82-479

MonoSpec 18 Spectrograph. Spectrograph is equipped with a coupling flange for allowing attachment of OMA (EG&G/PAR) or OSMA (Princeton Instruments) array detector. Requires one grating and one slit.

Accessories

00-6279	Exit Focus Tube for monochromator without slit.
00-6260	Coupling Flange allowing attachment of OMA (EG&G/PAR) or OSMA (Princeton Instruments) array detector.
00-4420	MonoSpec 18 Operator's Manual
00-6845	Grating Mount (Alignment bracket/holder).

Ruled and Holographic Gratings

28 mm x 46 mm ruled area on a glass blank 32.0 x 50.0 x 6.4 mm The following grating assemblies include mounting to the alignment bracket/holder
11-115	Ruled grating, 2400 g/mm, 250 nm blaze
11-120	Ruled grating, 1800 g/mm, 250 nm blaze
11-125	Ruled grating, 1200 g/mm, 300 nm blaze
11-130	Ruled grating, 1200 g/mm, 500 nm blaze
11-135	Ruled grating, 600 g/mm, 500 nm blaze
11-140	Ruled grating, 600 g/mm, 1.0 µ blaze
11-145	Ruled grating, 300 g/mm, 300 nm blazev
11-150	Ruled grating, 300 g/mm, 2.0 µ blaze
11-155	Ruled grating, 150 g/mm, 4.0 µ blaze
11-160	Ruled grating, 100 g/mm, 6.5 µ blaze
11-165	Ruled grating, 50 g/mm, 10.0 µ blaze
11-170	Ruled grating, 30 g/mm, 30.0 µ blaze
11-220	Holographic grating, 1200 g/mm, 200-800 range
11-230	Holographic grating, 600 g/mm, 200-800 range

The following gratings require an 11-098 alignment bracket/holder
985411420	Ruled grating, 1800 g/mm, 400 nm blaze
985411422	Ruled grating, 1800 g/mm, 500 nm blaze
985411917	Ruled grating, 1200 g/mm, 240 nm blaze
985411920	Ruled grating, 1200 g/mm, 300 nm blaze
985411924	Ruled grating, 1200 g/mm, 600 nm blaze
985411926	Ruled grating, 1200 g/mm, 700 nm blaze
985412917	Ruled grating, 600 g/mm, 240 nm blaze
985412918	Ruled grating, 600 g/mm, 300 nm blaze
985412920	Ruled grating, 600 g/mm, 400 nm blaze
985412926	Ruled grating, 600 g/mm, 700 nm blaze
985412937	Ruled grating, 600 g/mm, 2.5 µ blaze
985413922	Ruled grating, 300 g/mm, 500 nm blaze
985413930	Ruled grating, 300 g/mm, 1.0 µ blaze
985413938	Ruled grating, 300 g/mm, 3.5 µ blaze
985414921	Ruled grating, 150 g/mm, 450 nm blaze
985414942	Ruled grating, 150 g/mm, 5.0 µ blaze
985415424	Ruled grating, 100 g/mm, 600 nm blaze
985415444	Ruled grating, 100 g/mm, 6.0 µ blaze
985417457	Ruled grating, 40 g/mm, 22.5 µ blaze

Many additional options and accessories are available for the MonoSpec 18. Please contact the factory or your representative for more information.

Thermo Vision Colorado
2527 Foresight Circle
Grand Junction, CO 81505