Optical Photothermal Infrared spectroscopy
1. Submicron infrared spatial resolution
2. Non-contact measurement
3. Technique not requiring sample preparation
4. Convenience of a contactless reflection technique
5. Quality of the FTIR transmission spectra.
Spectra on thick samples correlated to FTIR transmission
Below: Three different O-PTIR spectra collected on 20 µm thick samples (below) were searched in the KnowItAll® database with high matches for polystyrene (PS) (left), polyethylene terephthalate (PET) (medium) and polymethyl methacrylate (PMMA) (right).
Submicron infrared spectroscopy in seconds
Fast, easy-to-use contactless optical technology
mIRage overcomes the limit of IR diffraction with an innovative technique, photothermal infrared optical spectroscopy (O-PTIR).
A tunable pulsed medium infrared laser induces photothermal effects on the surface of a sample, measured using a visible probe laser focused on the sample. Measurements are collected quickly and easily, without the need for contact-based techniques such as ATR spectroscopy.
FTIR transmission quality spectrum in reflection mode
mIRage provides infrared spectroscopy and chemical imaging, regardless of the infrared wavelength. Using O-PTIR, highly sensitive IR measurements are enabled, allowing absorption of transmission quality without contact with the surface. This eliminates the need for thin samples and improves turnaround times.
Bone sample: Reflection mode IR Spectra and hyperspectral imaging 25 x 25 µm array, 500-nm spacing. Left: Single wavelength image (1058 cm-1) from Hyperspectral data set. Right: Single-pixel spectrum – 1s collection time
- Sub-µm spatial resolution whatever the wavelength
- Simultaneous IR and RAMAN spectroscopies
- Quick and easy to use non-contact optical technique
- Eliminates the need for thin layers
|IR Spectral range|
|Raman Spectral range||900-200 cm-1 (c)|
|IR mode||ReflectionTransmission (d)|
|Probe laser(mIRage/Raman)||532 nm (e)|
|Stage minimum step size||100 nm|
|Stage x-y travel range||110x75 mm|
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