• RAMaker


Micro Raman/PL/TR-PL Spectrometer
Model : RAMaker

RAMaker Spectrometer

RAMaker is a professional Raman / PL system which allows multiple excitation wavelengths on a wide range of laser selection. Maximum of 3 lasers can be built-in inside the chamber, available wavelengths are: 355, 375, 405, 473, 488, 532, 633, 785 and 830 nm. UV or NIR sources such as 248, 266 and 325 nm can be mounted externally as well.

It has gained Taiwan invention Patent (I709732) and USA invention Patent (US 11,340,114 B2), parallel optical design remains system qualitative without calibration, each laser wavelength is completely fixed and optimized, the optimized Rayleigh filter is automatically switched by the software for wavelength correction and measurement.

The switching of different wavelengths is controlled by the software to achieve the purpose of fully automatic micro-Raman switching light source without any manual adjustment.

New patent design for visible light source automatically measuring, software controls the switching of laser, stable optical system, convenient to do sample co-location measurement by using different laser lights.

Novel confocal design including two sets of confocal apertures could precisely focus to obtain the best signal. The slit is controlled by software and continuously adjusted from 10um to 2500 μm and 0.8~8 mm. The confocal aperture can be 10~1000 mm, which can increase the signal resolution by more than 30%. 

Continuous neutral density filters (O.D 2.0~0.04), energy calibration line internally, its error value of energy control is by less than 1% precisely, build-in and self-input attenuation ratio; at the same time, the built-in laser can also be set by software at a rate of 1 mW/ Step to adjust the laser energy output. With the cooperation of the two, the laser power can be adjusted to 0.01 mW a minimum of output.


Detectors with high-sensitivity and low-noise can improve system sensitivity. The third-order peak of silicon wafer can be measured S/N >20:1

RPRM (Raman Polarization Rotating Mapping) for samples with high crystallinity or thin films, when it is necessary to measure the difference of polarized Raman, the software can automatically search for the laser and the angle of the light-receiving signal; another, the software can automatically find the laser with the best signal or the setting of zero signal angle, which is convenient for researchers to observe the lattice arrangement.


The micro-Raman system uses a 5-megapixel CCD and a 5-watt LED light source as the sample image observation module. The measurement of Raman or observing the surface image of sample is automatically controlled by the software. When observing the position of the sample, the laser energy is automatically attenuated less than 0.01%, to equalize the balance between laser and observed white light brightness; the standard configuration is 10X, 50X long working distance, 100X, it can be added 5X, 20X, 40X UV objective lens by requirements; when switching each objective lens, the error of laser light spot on sample position is within 1 μm.