Full-spectrum PEBBLE ultra-compact spectrometers

Expand the capabilities of your fluorescence instrument with PEBBLE

Explore new possibilities with full-spectrum fluorescence spectroscopy.

Using a diode array spectrometer for fluorescence spectroscopy can provide many benefits over optical filter-based instruments. If you are using more than a few emission filters a diode array spectrometer can be less bulky, less expensive, and easier to use. Furthermore, by obtaining the full spectrum you get the possibility to deconvolute overlapping spectra and perform background and Raman subtraction. The latest CMOS diode arrays are even fast enough that you can perform flow cytometry measurements.

The PEBBLE platform is a series of cost-efficient, pre-configured ultra-compact OEM spectrometers that provide:

  • Tiny footprint

  • High optical resolution

  • High throughput

  • Low stray light

  • Robust, athermal design

PEBBLE combines an ultra-compact form factor with high resolution and sensitivity as well as environmental ruggedness and is the ideal OEM solution for all those handheld and portable system applications, where performance cannot be sacrificed to obtain compactness and/or low cost.


Our spectrometers are well suited as the spectral engine in your analytical instrument for a wealth of applications in:

  • Healthcare and lifescience

  • Food and agriculture

  • Light measurements

  • Semiconductor manufacturing

  • Security

  • Biophotonics and pharmaceuticals

On our technology pages, you can learn more about several applications used in spectroscopy, and on our industry pages, you can find inspiration on how our technology can be used in various industries.

PEBBLE vs Filter

Prove diffraction grating technology

PEBBLE is based on the same proven diffraction grating technology used in all other Ibsen spectrometers. This ensures that PEBBLE can be manufactured in high quantities with very small unit-to-unit performance variations. A key benefit of using a transmission grating inside PEBBLE is a high resolution across the full wavelength range. This resolution is one of the best for this size of the spectrometer on the market. Furthermore, the pure transmission-based optics inside PEBBLE ensures very good thermal stability.

You can read much more about the benefits of transmission grating-based spectrometers here.

Which spectrometer to use?

Do you need to evaluate a spectrometer for your next project?
We understand that it can be hard to judge the performance of a spectrometer just from the data sheet. Therefore, we offer a time limited loan of a demo unit to customers that meet certain criteria.

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Would you like to discuss a quotation for one of our standard spectrometers or maybe a customized version? Please, fill in your contact details and we will get back to you shortly.