Absorption spectroscopy
Why Ibsen Photonics for Absorption
Absorption spectroscopy is a molecular spectroscopy technique that detects and quantifies specific substances in a sample by analyzing how light is absorbed at different wavelengths. Common wavelength ranges are UV-VIS and near-infrared (NIR). Capturing full absorbance spectra rather than absorption at a single wavelength enables analysis of complex spectra with several overlapping peaks
Ibsen Photonics produces transmission gratings and spectrometers covering wavelengths from 175 nm to 2.5 μm, enabling low stray light, high signal-to-noise ratio and environmental stability in compact, cost effective designs.
Our spectrometers are designed for high-volume manufacturing, ensuring minimal unit-to-unit variation and excellent environmental stability. This makes them ideal for integration into high-performance absorption spectroscopy systems while maintaining a competitive cost.
Ibsen Photonics makes a difference in your absorption spectroscopy system:
Advantages of using Ibsen Photonics for absorption
Our transmission gratings are patterned and etched directly into fused silica in an ultra-clean environment, ensuring high precision and minimal defects. As a result, our gratings exhibit lower stray light than replicated gratings. Our spectrometers incorporate these in-house manufactured gratings along with assemblies specifically optimized for minimal stray light.
Thanks to the high grating dispersion (lines per mm) in our transmission gratings, we can design spectrometers that are significantly more compact than those based on competing technologies.
We offer a variety of detector options for our spectrometers, which, combined with our DISB low-noise electronics, ensure the highest possible signal-to-noise ratio in your instrument.
Spectrometers from Ibsen Photonics have no moving parts and are designed for low sensitivity to environmental influences, ensuring the long-term stability required for robust and accurate absorbance measurements.
Our experienced R&D teams have over 200 years of combined tenure and experience optimizing grating and spectrometer designs to achieve the best possible performance in cost and size-effective platforms.
These factors yield the following benefits:

Transmission gratings for absorption
At Ibsen Photonics, we design and manufacture the world’s best surface relief transmission gratings in fused silica for wavelengths between 175 nm and 2.5 μm. Diffraction efficiencies (DE) for a selection of our gratings in the UV-VIS-NIR spectrum are shown in the figure.
Advantages of using Ibsen transmission gratings for your spectrometer:

Spectrometers for absorption
Our UV-VIS-NIR spectrometers are optimized for different applications, from cost efficient, compact spectrometers for handheld devices to the highest performance spectrometers with low stray light and high signal-to-noise ratio.
For more information on our range of spectrometers for absorption spectroscopy, please select your wavelength range of interest:
Wavelength ranges: UV (175-435 nm) | UV-VIS (190-1100 nm) |
VIS (360-830 nm) | VIS-NIR (475-1100 nm) | NIR (900-2500 nm)

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