Raman Spectrometer

Raman Spectrometer Galaxy Solar is suitable for both spectroscopy and imaging. It has high spectral resolution and extremely low stray light, ensuring data accuracy and repeatability, greatly improving the quality and speed of Raman spectroscopy imaging. The new imaging algorithm can extract useful spectral information from complex big data. The unique high-efficiency asymmetric optical path design, combined with grating on-axis scanning, suppresses stray light, eliminates diffracted light, and quickly and accurately obtains high signal-to-noise ratio spectra and imaging.

SPECIFICATIONADVANTAGES DOWNLOAD

Content	Specification
Spectral range	0-2000 cm^(-1)
Spectral repeatability	After single crystal silicon calibration, ≤520±0.02 cm^(-1)
Adjustable slit range	0-2 mm; Automatically adjust the slit width
Test platform scanning range	X×Y×Z:15815825 mm, can support up to 8-inch samples
Laser	325nm laser, laser power ≥12 mW, low wave number to ≤150 cm^(-1)
Spectrometer	Medium-long focal length spectrometer
UV sensitivity	The signal count of the silicon first-order peak is better than 1000 (1 second integration time) Detection conditions: using single crystal silicon wafer, wavelength 325 nm, full power, integration time 1s
Grating	Includes two options: ≤2400 gr/mm / ≤1800 gr/mm
Detector	TE cooled back-illuminated detector
Chip size	≥1 foot
Number of pixels	≥2048 pixels
Visible standard objective	Includes 10X, 40X UV objective

Easy to operate

Install a beam sampling camera in the optical path and configure the focus observation software. During normal testing, the focus of the 325 nm laser can be observed directly through the UV camera without switching the camera to observe the sample. Observe the light spot through the UV camera, adjust the focus value in the focus observation software to the minimum, and then you can get a spectrum with a good signal-to-noise ratio.

Data statistics

Data export can be selected in Excel form, or spectrum, integral intensity, crystallization rate and other data can be exported in an integrated manner. Import the exported Excel data with one click, and the software can automatically generate a new Excel table with statistics of integral intensity, crystallization rate and other data, so as to intuitively observe the trend of crystallization rate changes of samples.

Optimized optical path design

In the incident light path, there is a 4-axis angle adjustable optical path to ensure that the laser is incident normally into the objective lens and focused at the center of the field of view, optimize the 325 nm Raman test efficiency design, and efficiently utilize the excitation light and signal light. In the spectrometer, a UV-coated lens is used to couple the signal light into the slit, and a UV-optimized reflector is used in the collection light path section, with a reflectivity of up to 97%.

Optimized design of spectrometer

Equipped with imported iHR imaging spectrometer, it adopts asymmetric optical path design, so that there is no dark corner in the entire flat field range and no light flux loss at the edge of the focal plane; it can accurately optimize the position of optical components to achieve the purpose of eliminating secondary diffraction light. At the same time, the grating on-axis scanning design is adopted. This technology can keep the signal light on the surface of the center of the grating, thereby maximizing the grating's splitting efficiency and accuracy, and ensuring high light flux and spectral stability.

CCD Optimized Design

Using TE cooling back-illuminated detectors, it has higher quantum efficiency than traditional front-illuminated sensors. The peak quantum efficiency in the ultraviolet band exceeds 60%. TE cooling reduces dark current, reduces detector operating temperature, and reduces thermal noise, ensuring that higher signal intensity can be obtained under 325 nm lasers, improving the signal-to-noise ratio of Raman spectroscopy.

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