For researchers utilizing fixed-field NMR spectrometers, our in-situ NMR illuminator offers a compact and user-friendly solution for conducting photo-related experiments. This includes seamless integration with commercial high-field NMR systems. Furthermore, its design suggests strong potential and compatibility for integration with benchtop NMR instruments, though some customization may be required to perfectly adapt to specific hardware configurations or software interfaces of different manufacturers. Unlike advanced Field-Cycling NMR systems which feature their own specialized illumination, our illuminator is designed for straightforward integration into 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.

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1. Seamless Integration: The entire set integrates the light guide with the light source, eliminating the need for additional hardware.
2. Universal Compatibility: The light guide is designed to fit the inner diameter of conventional 5mm liquid-state NMR tubes, ensuring compatibility with standard equipment.
3. Optimized Illumination Output & Performance: Our system features a 4mm-diameter output light guide designed for exceptional illumination efficiency and uniform light distribution directly within your 5mm NMR sample tube. This precise light coupling maximizes photochemical reactions and significantly improves signal-to-noise ratios in photo-CIDNP experiments, all while minimizing the need for excessively high light power.
4. Versatile Lighting: Equipped with high-power LEDs, users can choose from optional wavelengths directly installed on the light guide, offering flexibility for various experiments.
5. Easy Installation: Designed for effortless installation onto commercially available NMR tubes, saving time and effort in setup.
6. Precise Synchronization: The system synchronizes illumination timing with NMR pulse programs through TTL triggers, ensuring accurate data acquisition.
7. User-Friendly Control: Utilizing computer aid, users can effortlessly control light powers and select from various illumination timing modes, enhancing experimental control and customization.
8. Compact and Portable: Engineered to be compact and easy to handle, facilitating seamless integration into experimental setups while ensuring convenience and portability.
9. Ready-to-Use: With this set, users can directly initiate experiments without the need for self-made additions or additional add-ons, streamlining the experimental process and minimizing setup time.

Available wavelengths and specifications

Note:
* The specification of maxima power is the end power through the light guide to the sample.
** The other wavelengths are upon customer requests.

Patent application:

• Application No.: Taiwan Utility Model Patent M641967 (Status: Active)
• Application No.: US Patent 18/138,755 (Status: Pending)

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• One LED module with one wavelength on demand
• Option for more than one LED module.
• The light guide
• 5mm NMR tube holder
• Electric power cable for LED module /MMCX/ (the length is according to customer demand)
• Power and control module with USB communication to the computer and TTL trigger to NMR console
• TTL trigger cable /BNC to MCX/ (the length is according to customer demand)
• Software with a graphical user interface for controlling/calibrating the power levels of illumination (Recommend operation system: Windows X and above)
• The illuminator with 200 levels of adjustable optical power.
• A special optical power meter for illumination power calibration from the light guide.

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