Raman spectrometers
for system integration

The best choice of a Raman spectrometer naturally depends on your specific application. Basic technical parameters to consider are laser wavelength, spectral range, sensitivity, and resolution. The choice of laser wavelength is often determined by finding the right compromise between the Raman scattering signal and the fluorescence signal from your sample. In many cases, a laser wavelength of 785 nm is a good starting point. The spectral range is determined by the specific samples you are going to analyze. Most commonly, only the Stokes shift is measured, meaning that the wavenumber shifts are positive and the wavelength range is longer than the laser wavelength.

If the Raman signals are very weak, the spectrometer needs to be highly sensitive. This can be achieved by choosing a spectrometer with as high throughput as possible. Ibsen Photonics offers industry leading sensitivity through our in-house manufactured transmission gratings with the highest diffraction efficiency and widest bandwidth on the market. Furthermore, a  high numerical aperture, a tall entrance slit and the use of a deeply cooled detector can provide high sensitivity. The resolution of a spectrometer determines how well your instrument will be able to resolve closely spaced peaks. High resolution often means lower sensitivity, so it is generally advisable to choose a resolution just slightly larger than the wavenumber separation between the two closest spaced peaks in your anticipated spectra.

Besides the technical requirements, you should also consider how the instrument is going to be used. If the instrument is a handheld unit, it is important to consider size, weight, and possibly power consumption for prolonged battery operation. In that case, cooling should generally be avoided as it increases both weight and power consumption. If the instrument is a tabletop unit, the constraints on size, weight, and power consumption are not as stringent.

Finally, the Raman spectrometer cost is naturally an important factor. Factors that drive the Raman spectrometer price upwards include cooled detectors and high numerical aperture optics. As a general rule of thumb, the smaller the spectrometer, the lower the Raman spectrometer cost.

At Ibsen, we understand that volume manufacturing of application-specific Raman spectrometers is a completely different task than building a single scientific instrument. We are an ISO 9001 and 13485 certified manufacturer with decades of experience in volume manufacturing of OEM spectrometers.

Our emphasis is on the high and consistent quality of our products, ensured through our proven, robust designs and 100% outgoing inspection. Especially for Raman spectrometers, our low unit-to-unit variation can help you achieve model transferability between your instruments.

Our spectrometer designs have undergone environmental qualification to ensure proper operation within specified thermal, humidity, vibrational, and drop test conditions.

We have established long-term relationships with a range of qualified sub-suppliers, ensuring you a stable supply chain. Furthermore, we offer our OEM customers flexible supply options, typically based on frame order contracts or Kanban agreements.

All in all, Ibsen Photonics is a well-established spectrometer supplier that enables you to focus on your core business.