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| The TTS Second Harmonic Generation (SHG) spectroscopy/imaging test system uses a 1030 nm fiber femtosecond laser as the excitation source. Integrating an upright optical microscope module with a synchronized high‑speed scanning stage, it enables rapid SHG intensity imaging. | |||||||||
Products Feature
Polarization-dependent SHG intensity mapping (polar plots)
The software rotates the half-wave plate to change polarization automatically and measures SHG intensity as a function of input laser polarization.
High-speed, high-resolution SHG intensity imaging (SHG mapping)
Using a synchronized high-speed stage, high-sensitivity detector, and high-speed acquisition card, the system achieves scanning speeds exceeding 700 points/s.
Measurement of SHG intensity versus excitation power
Software-controlled laser power adjustment enables fast acquisition of SHG spectra under different excitation powers.
Easy integration of confocal fluorescence, Raman, and other modules for fluorescence lifetime imaging, Raman spectroscopy/imaging, etc.
Specifications
| Excitation Light Source | 1030 nm femtosecond laser |
| Objective Magnification | 5×,20×,50×,100× (other magnifications available upon request) |
| Spatial Resolution | <2μm (50x objective) |
| High-Speed Motorized Stage | Minimum step size: 50 nm Repeatability: 250 nm Synchronized output Maximum scanning speed: 300 mm/s |
| Polarization Control | 320 mm focal length grating spectrometer Optional Fiber spectrometer |
| Light Source | LED |
| Software Function | Data acquisition and processing ROI selection Field-of-view movement Polarization control Scan speed control |
| Extension Module | Supports low-temperature stage Confocal fluorescence and lifetime (including electroluminescence), Raman modules |
Sample Data

Figure 1. Sample of monolayer WS₂: (A) Optical bright-field image; (B) SHG imaging; (C) Polarization-dependent SHG intensity diagram.

Figure 2. Sample of monolayer WS₂: (A) Optical bright-field image; (B) SHG imaging (35° polarization); (C) SHG imaging (70° polarization). Signal differences across three sample regions arise from different orientations.

Figure 3. (A) SHG spectra under different excitation light powers; (B) Log-scale plot of SHG intensity vs. excitation power.