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FFT-CPL in the IR Spectral Range!

The first and only IR CPL spectrometer was developed by OLIS in 2025 and is ready for you to use now. Buy the prototype or the Gen 2* model from us or visit here to run your samples on our in-house model, specifications below.

Circularly Polarized Luminescence on Excitation Sources and other IR active samples with full implementation of FFT-CPL for uncontaminated gLUM calculation!

The first model was built around the classic dispersive IR monochromator of an PE 983. This is NOT an FTIR, but a dispersive IR device. (It does not function as a dispersive IR, only as an IR CPL.)

• Spectral range of 2,000 to 12,000 nm; 5000 – 833 wavenumbers

• Abscissa Accuracy: ±3 cm⁻¹ (5000–4000 cm⁻¹), ±2 cm⁻¹ (4000–2000 cm⁻¹), ±1 cm⁻¹ (2000–180 cm⁻¹)

• Repeatability: 0.005 cm⁻¹ run-to-run

• Stray Light: <0.1 % (5000–2000 cm⁻¹), rising to <1 % at lowest range

• Ambient Use: 15–35 °C; 15–75 % humidity

• Sample is the presumed source of measurement light, although an excitation source can be added by you or OLIS.

• Detection: HgCdTe three-stage thermoelectrically cooled, optically immersed photoconductive detector

• Modulation: a 37 kHz Hinds PEM

• Data Acquisition: OLIS SpectralWorks software with free-standing FFT-CPL data processing

• Supplied: an external QWP and wire-grid polarizer to demonstrate the instrument's ability to detect CPL without seeing any influence from LPL.

Most likely candidates for IR CPL will be lanthanide complexes, as well as biopolymers, supramolecular assemblies, and chiral solids.

* The Gen 2 OLIS IR CPL will employ an OLIS IR single grating (dispersive) monochromator, resulting in an optically duplicate system with a smaller footprint. The electronics, detector, and data acquisition and FFT-processing will be unchanged.