Monochromator
Lab Equipment, Spectroscopy
Reliable, Low Price Grating Monochromator — Coming Autumn 2025!
Precise and reliable wavelength selection for your spectroscopy experiments
Overview | Specifications | Features | Gallery | Related Products
The Ossila Monochromator compact, reliable and can easily integrate into many optical setups, increasing the versatility of your spectroscopy measurements. Choose a specific excitation wavelength for fluorescence measurements, isolate and measure specific emission signals, or simply improve the sensitivity and accuracy of absorbance measurements with just the touch of a button.
Select specific wavelengths between 380 – 1000 nm with <1 nm accuracy, or quickly measure across this spectral range with scanning rates of up to 1000 nm/s using the Monochromator Console software. Alternatively, for more control or for integration into complex setups, this system can also be controlled via serial commands.
Whatever your experimental needs, use the Ossila Monochromator to step up your optical spectroscopy measurements.
Compact Size
Fits into your experimental setup
High-Speed Scanning
For fast data acquisition
Easy to Use
With innovative free software
High Resolution
With Czerny-Turner configuration
What is a Monochromator?
A monochromator is an optical instrument that split light into constituent spectrum, before isolating and transmitting a specific narrow band of wavelengths. Often, they use a diffraction grating to disperse the light. This dispersion is directed towards an adjustable exit slit, which transmits only the desired wavelengths. By rotating the diffraction grating, different wavelengths of light can be directed through the exit slit.
Monochromators can be used to select specific wavelengths or to scan through a range of wavelengths. They are extremely useful for many applications including excitation and emission fluorescence spectroscopy or for sensitive absorbance measurements.
Specifications*
| Wavelength Range | 380 nm – 1000 nm |
|---|---|
| Wavelength Accuracy | <1 nm |
| Wavelength Repeatability | <0.1 nm |
| f Number | f/4 |
| Configuration | Crossed Czerny-Turner |
| Slit Type | Manual |
| Possible Slit Sizes | 50 μm – 6 mm (W) x 10 mm (H) |
| Weight | TBC |
| Dimensions | 110 x 110 x 75 mm |
*The Ossila Monochromator is currently under active development. Some features and specifications are subject to refinement as we approach our Autumn 2025 launch.
Monochromator Features
Reduced Noise for Accurate Measurements
The Czerny-Turner optical configuration reduces noise from unwanted reflections and multiple dispersions. This improves resolution and accuracy of your measurements, achieving sub-nanometer wavelength accuracies.
High Scanning Speed Over Wide Wavelength Range
Achieve rapid sample analysis with scanning speeds up to 1000nm/s. Quickly acquire measurements over a wide spectral range (380 - 1000 nm) while maintaining the high accuracy and precision that a monochromator can offer.
Easy-To-Use with Monochromator Console
The Ossila Monochromator can be controlled using the Monochromator Console offering plug-and-play functionality. Simply plug in, and use the compatible software to select specific wavelengths or scan through a desired wavelength range. Alternatively, the system can be controlled with serial commands, for integration into your specific optical systems.
Compact and Low Cost
We designed this monochromator to be as versatile and affordable as possible. Its small footprint means it is easily portable and doesn't take up much valuable lab space. The competitive price point and add on accessories make this an accessible way for any researcher to enhance their optical spectroscopy measurements.
Monochromator vs. Spectrometer
Monochromators and spectrometers both use diffraction gratings or prisms to split light into its component wavelengths, but they serve different primary purposes.
Monochromators select and output a single beam of light with a narrow wavelength range. The internal diffraction grating disperses light into its constituent wavelengths, and this grating rotates directing a specific wavelength towards an adjustable exit slit. This allows users to tune output light, selecting individual wavelengths or measure one wavelength at a time. These systems are used within spectrofluorometers for more accurate measurements.
In contrast, spectrometers are designed to measure the intensity of all wavelengths simultaneously. Both diffraction grating and detector are housed in one unit. A stationary grating directs dispersed light towards a charge-coupled device (CCD) array. Each pixel corresponds to a different wavelength, so it measures an entire spectrum at once. These systems measure spectra more quickly, but with lower resolution.
