A compact in-situ illuminator for photo-NMR experiments on any fixed-field NMR spectrometer — no modification to the spectrometer or probehead required. Delivers superior illumination efficiency and uniform light distribution directly within the sample, compatible with high-field and benchtop NMR systems.
For researchers utilizing fixed-field NMR spectrometers, our in-situ NMR illuminator adds photo-NMR capability without any modification to the spectrometer or probehead — simply insert the light guide alongside the NMR tube and connect the TTL trigger to your console. It integrates seamlessly with commercial high-field NMR systems, and its design also offers strong potential for integration with benchtop NMR instruments, though some customization may be required for specific hardware configurations. Unlike the Field-Cycling NMR Illuminator which is designed for use with the HFFC shuttle system, this illuminator is purpose-built for straightforward use on existing fixed-field setups. A key advantage of our system is its exceptional illumination efficiency and uniform light distribution within the sample. This ensures that target molecules receive optimal and consistent light energy, maximizing reaction quantum yields and significantly improving the signal-to-noise ratio in photo-CIDNP experiments, without the need for excessively high light power. Its major components – a light source module and a light guide – efficiently deliver light directly into samples within the NMR tube, enabling photo-related experiments without additional hardware requirements and expanding the accessibility of cutting-edge photo-NMR research.
| Color | **Peak Wavelength (nm) | #Typical Spectral Half-Width (nm) | *Max. Power (mW) |
| Near UV | 410 ~ 420 | 13.7 | 500 ± 50 |
| Royal Blue | 440 ~ 455 | 22 | 2000 ± 200 |
| Blue | 465 ~ 485 | 28 | 1500 ± 150 |
| Green | 520 ~ 535 | 36 | 750 ± 75 |
| Red | 620 ~ 630 | 22 | 800 ± 80 |
Note:
* The specification of maxima power is the end power through the light guide to the sample.
** The other wavelengths are upon customer requests.
# Spectral half-width is the spectral bandwidth at 50% of the peak intensity.
Get Details on in-situ NMR Illuminator
The In-Situ NMR Illuminator is designed for standard fixed-field NMR spectrometers — no sample shuttling is involved. Light is delivered directly into the NMR tube via a light guide while the sample remains stationary at the detection field. The Field-Cycling NMR Illuminator is an add-on to the HFFC shuttle system, designed to irradiate the sample at a specific stray field position during shuttling. Choose the In-Situ Illuminator if you want to add photo-NMR capability to your existing spectrometer without any shuttle hardware.
No. The light guide is inserted alongside the NMR tube through the top of the magnet bore. No hardware modification to the spectrometer or probehead is required. It is compatible with standard 5 mm NMR tubes on Bruker, JEOL, and Varian systems.
Typical applications include photo-CIDNP at fixed field, in-situ photoreactions monitored by NMR, photoactivation of caged compounds, in-cell NMR with light-sensitive systems, and metabolic pathway studies involving photosensitive substrates. The TTL trigger interface allows illumination timing to be controlled directly within the NMR pulse program.
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