Portable Raman System-GMDX

GMDX is a portable micro-Raman system. The system includes an XYZ three-axis sample stage, a 5-megapixel CCD camera, and a 10X objective lens. Users can swap in objectives with different magnifications, and scan/imaging is automatically managed by the software.

GMDX allows selection of different laser wavelength combinations based on the application, supporting micro-Raman or micro-PL measurements. For example: PL range: 535–1100 nm; Raman range: 79–3500 cm⁻¹ using a 532 nm laser. When using the 10X objective, the laser spot size on the sample is approximately 0.3 µm or smaller, and users can change objectives according to their specific requirements.

GMDX is particularly suitable for applications involving thin films, trace samples, and SERS substrates.

• Two type of laser power controlling interface

Two software-controlled methods are available for laser power adjustment.

A continuous neutral density filters ( (O.D. 2.0–0.04) with a built-in laser power calibration curve allows precise control with accuracy of better than 1%.

Both default and user-defined laser power transmittance(%) are supported. Additionally, laser output power can be adjusted via software in 1 mW steps.

By combining these two control functions, the laser power can be finely tuned to a minimum output of 0.01 mW.