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Category Overview (Filters)
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TrueChrome 4k Pro
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CM Series Monochromator/Spectrograph
DK Series Monochromator/Spectrograph
Options and Accessories
Multi Shot Autocorrelator
Single Shot(Fast FROG)
High Power Variable Attenuator
Desktop adjustable light attenuator
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ID900 Time Controller
Laser Diode Drivers
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NANO4TH Frequency Converter
Optical Test Measurement System
RF Test Measurement System
DK Monochromator and DK Spectrometer
-Triple-grating turret allows high efficiency scanning across a broad spectral range with motorized slits
- May be factory configured as a monochromator or spectrograph.- Scans in both directions and with Constant Spectral Resolution (CSR)- Integrates with SP filter wheel for automatic filter switching- Suitable for fluorescence and absorption studies, detector characterization, thin film measurements, etc
- Connects to any computer via RS 232 or IEEE-488.
Visit the Specification Sheet Tab for details on performance and resolution.
The Digikrom DK Monochromator and DK Spectrometer Series has two sets of focal length at 240mm & 480mm. The systems is a completely computer integrated solution with user friendly commands to control the triple grating turret, motorized slits, and optional motorized filter wheel for quick and easy sorting. The DK/DKSP system can be set for constant spectral resolution(CSR), where the slit width is automatically modified to compensate in the change in dispersion with wavelength to maintain constant spectral bandpass.
Rugged cast construction, A-Thermal design, and SP direct grating drive make this unit very reliable in its class. Each instrument is calibrated and certified prior to delivery.
Gratings and Optical Resolutions
Gratings are to be ordered along with DK240 and DK480 allowing users to order their desired grating to meet their needs.
Click here to view gratings.
Each Digikröm contains its own microprocessor, it is controlled via a standard serial port (RS232), IEEE-488 port (GPIB) option, or with SP's hand-held controller option. This compatibility allows your computer, for example, to make automatic adjustments of bandwidth through motorized slits, to select gratings, choose scan speeds and to store your changes in memory. This versatility is intrinsic to the instrument.
Czerny-Turner: Standard Triple Grating Turrets
3.2nm/mm (with 1200g/mm grating)
1.6nm/mm (with 1200g/mm grating)
Worm and wheel with micro-processor control and anti-backlash gearing. Bi-directional. Usable in positive or negative grating orders.
0.01nm (with 1200gv/mm grating)
±0.30nm standard (with 1200gv/mm grating)
1 to 1200nm/min ( with 1200g/mm grating)
Standard: Unilateral- computer controlled – curved entrance – straight exit
Width: 10um – 3000um
Height: 2mm – 20mm
0.2nm (with 1200g/mm grating and
0.1nm (with 1200g/mm grating)
1-3 gratings (68x68mm standard) (68x84mm optional) must be purchased. See Gratings (DK) page
Click here to view Gratings.
Demonstration control program and LabView Driver included.
100 – 240V 50/60Hz 60W
220/230/240 50/60Hz @0.5A optional
It is the ability of the device to return to the same wavelength. The measured wavelength by the equipment should not drift over the range provided.
It is a measure of the deviation of the wavelength when the standard wavelength is measured. You would expect the vaue of the wavelength to be the standard value with the deviation everytime you take a measurement.
It is the the ability of the instrument to differentiate between different
wavelength of light.
It is the rate which the wavelength is being read.
The range of frequencies or wavelengths that can pass through the slits
DK240/480 Demonstration Software-Windows™
DK series monochromator demonstration software is written in Microsoft® Visual Basic™ 16 bit, Ver. 4.0 for Windows™ and will run on Windows™ 3.11, 95, 98, 2000, and NT 4.0. The demonstration software, along with instructions for operation, is found on the CD software disk. If you are interested in writing custom software that supports the DK240/480, we will be pleased to send this source code upon request. If you have any questions about the operation of your monochromator or if you have suggestions, please contact us. We appreciate your comments and suggestions.
DK240/242/480 Labview Executable Demo
DK240/242/480 Labview Source code Demo
DK240/242/480 Labview GPIB Executable Demo
DK240/242/480 Labview Source GPIB Demo
Labview Runtime Engine
NOTE: please install the Labview Runtime Engine and Labview Full Visa (the latest version), if your computer doesn't have any of these.
DK240/242/480 Visual Basic Executable Demo
DK240/242/480 Visual Basic Source Demo
DK240/242/480 Visual C++ Executable Demo
DK240/242/480 Visual C++ Source Demo
Bi-lateral slit option
Bi-lateral slit option for DK240 / 480. Both sides of slits are automatically controlled for maintaining image centering when wider slits are necessary. (Tolerance: ± 10µm)
Internal IEEE-488 / GPIB communication interface option for DK240 / 480. Separate output connector from monochromator.
Infrared (gold) coatings
Infrared (gold) coatings on optics for DK240.
Enhances transmission by up to 40% between 600 - 1100nm. Not suitable for work below 600nm.
Infrared (gold) coatings on optics for DK480. Enhances transmission by up to 40% between 600 - 1100nm
Handheld monochromator controller
Handheld monochromator controller for DK240 / 480. Allows local control of monochromator whether or not a computer is available.
RS 232 Cable assembly for PS/2 style computer
RS 232 cable assembly for MAC style computer
IEEE-488/GPIB universal cable assembly
Six position - 1" diameter automatic filter wheel assembly that bolts directly to the DK entrance.Receives power and commands directly through DK unit.
Attachment to allow DKSP spectrograph to operate as a monochromator. Includes CM standard 6-fixed slit set.
Single filter carrier that mounts directly between DK unit and accessory.
Collimator: Universal Output Conditioner
An output module designed to work with both CM and DK model monochromators. The adjustable position of the internal lens allows the user to condense or collimate for UV to NIR wavelengths.
Click here to access and purchase from the Accessories Page.
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