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Revolutionary Multipass Cell by IRsweep the Ircell (Long Path, Compact and Robust)

Introducing the IRcell

Zurich, Switzerland, March 17, 2016 --( IRsweep is a company which is justifiably proud of the company's recently-established pedigree in designing and manufacturing accurate and reliable optical sensing technology solutions. IRsweep’s customer base includes academic, industrial and research institutions worldwide IRsweep’s is proud of it's market position of being the source for which spectroscopists around the globe have depended continually upon, when it comes to keeping ahead of the changing requirements of their industry.

The reason for IRsweep’s continual growth is credited to its product IRcell, USP of this product is its unique design as the multipass cell consists of only a single, circular mirror. “In this cell, the body at the same time acts as the mirror reflecting the optical beam,” says IRsweep co-founder Markus Geiser. “This has given the company the leading edge, when it comes to providing solutions for infrared spectroscopy, in an ever changing world,” he further adds.

Many industrial applications are in rough environments with mechanical shocks and large temperature changes. The uniqueness of the IRcell is based on two outstanding properties: its single piece construction and the two-dimensional, star-shaped beam pattern in the cell. Thanks to the two-dimensional beam pattern, the internal volume of the cell can be kept very low. Therefore, IRsweep can reach an optical path of several meters with a sample volume that is ten-fold smaller than in most competing gas cells, resulting in short gas exchange times. The single-piece construction makes the IRcell especially robust and invariant to temperature changes.

Technology used for IRCELL
Quantum cascade laser comb sensing
IRsweep develops optical sensing solutions in the mid-infrared range - the fingerprint region of most light molecules - offering high selectivity and speed combined with wide spectral coverage. An electrically pumped semiconductor based frequency comb integrated into a single few mm long laser diode emits many well controlled wavelengths at the same time.

The frequency comb interacts with the sample substance. The frequency and intensity of the transmitted light contains the necessary information to define the type and concentration of chemical species. The acquisition of all wavelengths is performed simultaneously with no moving parts required by heterodyning with a second frequency comb.

Currently, IRsweep is the sole manufacturer and distributor for the IRcell. For sales enquiries connect with us at +41 78 956 32 19 or email at

About IRsweep: Founded in 2014, based in Zürich, Switzerland, the company offers cutting edge optical sensing solutions based on semiconductor quantum cascade laser frequency combs in the mid-infrared spectral range. The company was awarded Venture Kick and the Volkswirtschaft-Stiftung Award in the year 2015
Contact Information
IRsweep GmbH
Swati Shinde

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