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    HELIOS IR: MID-IR Femtosecond Transient Absorption Spectrometer

    HELIOS IR is a broadband mid-infrared pump-probe femtosecond Transient Absorption Spectrometer. A complete turn-key system, HELIOS IR can measure photoinduced absorbance changes across a broad (2-13 µm) spectral range with femtosecond time resolution over an 8 ns time window. The time window can be extended to sub-milliseconds with an EOS IR add-on

    Overview

    HELIOS IR is a broadband mid-infrared pump-probe femtosecond Transient Absorption Spectrometer. A complete turn-key system, HELIOS IR can measure photoinduced absorbance changes across a broad (2-13 µm) spectral range with femtosecond time resolution over an 8 ns time window. The time window can be extended to sub-milliseconds with an EOS IR add-on

    Key Features

    • Broad Probe Spectral Range (MID-IR).
    • Variable Spectral Resolution.
    • Extendable Time Window up to ms.
    • Built-in Automation for Alignment and spectral range switching.
    • Large Sample Compartment.
    • Versatile and User-friendly Software.

    Specifications

    Probe spectral range 2 – 13 μm (Extendable to 20 μm)
    Gratings used in Monochromator
    • 50 g/mm (6 – 16 μm)
    • 75 g/mm (3 – 10 μm)
    • 150 g/mm (2 – 7 μm)
    Optical delay line
    • Time window: 8 ns (extendable to ms)
    • Resolution: 14 fs
    • Automated alignment time: 3-5 min
    • Beam pointing drift: < 10 μm over 8 ns delay range
    Detectors
    • Single-pixel MCT detector
    • Multi-pixel MCT detector

    Applications

    • Photophysics.
    • Materials science.
    • Photochemistry.
    • Nanoscience.
    • Photobiology.
    • Transient spectrometry.
    • Cell biology.

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