RG PRO Raman Spectrometer
The RG PRO Raman Spectrometer from Lightnovo extends the spectral range into the terahertz (THz) range. A single measurement covers a spectral range from 25 cm-1 to 4,000 cm-1. The RG PRO spectrometer combines an excellent signal-to-noise ratio with high spectral resolution.
The ability to select one of three excitation wavelengths (532 nm, 785 nm and 830 nm) and various slit sizes (20 µm, 35 µm and 50 µm) offers maximum flexibility in terms of resolution and signal intensity. In addition, various laser power levels are available, allowing for the analysis of a wide variety of samples. The configurations include a Low Power (LPR) version [for samples that can only withstand low laser power; SERS], High Power, or a combination of low and high laser power.
Like the RG Spectrometer, the RG PRO features a compact design measuring 350 mm × 110 mm × 60 mm. It is only slightly larger than the RG Spectrometer, and, weighing less than 1.65 kg, only slightly heavier than the RG Spectrometer. The RG PRO Spectrometer is suitable for mobile use, laboratory environments, and OEM integration.
Key Features
- Ultra-low-frequency detection from 25 to 70 cm-1
- Direct Insight into Crystal Structure, Phase Transitions, and Polymorphism
- Simultaneous access to the fingerprint area and the area below 70 cm-1
- High spectral resolution with a good signal-to-noise ratio
- Compatible with the RG microscope
- Portable Spectrometer
Distinctive features of THz Raman spectroscopy and how it differs from conventional fingerprint Raman spectroscopy
The extended spectral range opens up new possibilities for material characterization as well as applications in pharmaceuticals, semiconductor technology, and nanotechnology. Using intermolecular and lattice vibrations, it is possible to investigate crystal structures, phase transitions, and polymorphism—features that are often not detected by conventional Raman spectrometers. This provides insights into the higher-order structure. Classical Raman spectroscopy primarily provides information about the chemical composition of the sample, the present vibrational modes, and functional groups.
Software
The RG PRO Spectrometer can be controlled via an app for Android-based mobile devices using Bluetooth or via a USB cable connected to a computer (Windows 10 and 11). In addition to operating the device and acquiring/saving Raman spectra, the Miraspec software enables data acquisition (control of laser power, exposure time, sensor gain, number of repetitions, and spectral range), data preprocessing (baseline correction, spectral smoothing, and spectrum normalization), as well as qualitative and quantitative analysis (PCA [principal component analysis], material identification, creation of spectral libraries, principal component regression, and calibration of peak heights and areas). The spectral data can be exported in formats such as TSV, TXT, or JDX.
Accessories
Thanks to Lightnovo’s extensive portfolio of accessories—including variable Raman probes, contact and non-contact samples, and focusing modules—the RG PRO can be flexibly adapted to a wide variety of research and industrial applications. All accessories are universally compatible with all models in the miniRaman, RG, and respective PRO series. You can find an overview of all available accessories here:
Accessories for Raman spectrometer
Applications
The applications of THz Raman spectroscopy range from the analysis of active pharmaceutical ingredients to the investigation of materials (e.g., semiconductor structures) and are intended for use in research and development, universities, and by the general public.
- Pharmaceuticals: Crystallinity and Polymorphism of active ingredients and excipients
- Biomedical diagnostics: Biomolecular interactions and tissue organization
- Semiconductors and nanomaterials: Organic and 2D materials, phonon analysis of quantum dots
- Industry and petrochemicals
- Structural properties of the products
Specifications
| RG PRO 532 | RG PRO 785 | RG PRO 830 | |
|---|---|---|---|
| Laser wavelength | 532 nm | 785 nm | 830 nm |
| Power on sample | 10-100 mW 0.01-90 mW (LPR) | 10-95 mW 0.01-80 mW (LPR) 5->500 mW (Power) 0.01->500 mW (Power LPR) | 5-70 mW 0.01-65 mW(LPR) 10->500 mW (Power) 0.1-400 mW (Power LPR) |
| Spectral range | 38-3700 cm⁻¹ 38-2040 cm⁻¹ (HR) | 25 - 2500 cm⁻¹ | 40 - 2400 cm⁻¹ |
| Spectral resolution | 4 / 5 / 6 cm⁻¹ 2.3 / 3 / 3.7 cm⁻¹ (HR) | 3 / 4 / 5 cm⁻¹ | 3 / 4 / 5 cm⁻¹ |
| Signal-to-noise ratio | 1200:1 1000:1 (LPR) 800:1 (HR) 600:1 (HR LPR) | 1000:1 800:1 (LPR) 3000:1 (Power) 2500:1 (Power LPR) | 900:1 800:1 2500:1 (Power) 2000:1 (Power LPR) |
** Slit size dependent; slit size can be customized (20,35,50 um slits)
*** Determined as peak signal-to-noise ratio of polystyrene spectrum at maximal laser power, integration time 0.3s, number of repetitions 10
RG PRO Raman Spectrometer vs RG Spectromter
| Feature | RG Spectrometer | RG PRO Spectrometer |
|---|---|---|
| Spectral range | 70 – 4000 cm⁻¹ | 25 – 4000 cm⁻¹* |
| Low-frequency capability | Limited | THz-optimized filters |
| Information | Molecular fingerprint | Fingerprint + intermolecular / lattice modes |
| Applications | Standard Raman analysis | Advanced R&D: polymorphs, 2D materials, phonons |
| Form factor | Handheld/Portable / OEM integration | Handheld/Portable / OEM integration |
| Size and Weight | 257 x 110 x 61 mm; 1,5 Kg | 350mm, 110mm, 61mm; 1,650 kg |
| Laser wavelenght | 532 /638/ 785 / 830 | 532 / 785 / 830 |