The
use of a concave aberration corrected holographic grating
simplifies the optical configuration of the H-20 monochromator
in comparison to conventional monochromators. The collimating
and focusing mirrors are in fact eliminated, bringing many
advantages, including flexibility of use, maximum level
of transmission and high spectral purity.
Typical Applications
Variable filter. Absorption/transmission. Fluorescence applications.
Laser diode characterisation. Spectroscopic studies. Fibre
optics characterisation.
High Spectral Purity
The use of holographic gratings gives the H-20 a very low
stray light level and no ghosts. Signal to noise ration
is therefore optimum.
Wide Range of Accessories
When designing complete high performance optical configurations,
the accessories are easy to set up and use. The modular
design of the H-20 and its accessories provides the user
with a versatile easy to use instrument system.
Optional Stepper Motor System
For automatic scanning and computer control.
Resolution
Typically 0.5 nm at 500nm.
Slits
Fixed width, interchangeable
inserts, height continuously adjustable.
OEM
Its compact design is ideal for prototype designs and OEM
work, as well as research and breadboard systems.
Specifications
4 versions available - UV, VIS, IR and FIR. Gratings
are not interchangeable.
| Version |
|
|
|
|
| Focal
Length |
200mm
|
| Spectral
Range |
200-750nm
|
350-800nm
|
0.4-1.6µm
|
0.8-3.2µm
|
| Aperture |
F/4.2
|
| Dispersion |
4nm/mm
|
8nm/mm
|
16nm/mm
|
| Resolution |
0.5nm
|
1nm
|
2nm
|
| Grating |
1200g/mm
|
600g/mm
|
300g/mm
|
| Stray
Light |
10-5
at 8 bandpasses from 632.8nm laser line with 1mm
slits
|
| Reproducibility |
+/-
0.25nm
|
| Slits |
Interchangeable
fixed slits 0.5mm, 1mm and 2mm wide
|
| Dimensions |
339
x 84mm
|
| Weight |
3.2
kg
|
| Control |
Manual
or motorised
Optional RS232 or IEEE488 interfaces
Windows or DOS software
|
