Mars Confocal Micro-Raman Spectrometer

· The multi-channel confocal micro-Raman spectrometer is an essential tool for analyzing molecular composition and structure. By integrating microscopic imaging technology with Raman spectroscopy, it provides high-resolution, high-sensitivity Raman spectral imaging. The expandable 2D automated translation stage enables Raman spectral scanning and imaging. Confocal Raman spectroscopy is widely applied in cancer and tumor Raman analysis, graphene material characterization, electrochemical reaction monitoring, and the identification and characterization of various substances.
Common Specifications

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Product Features
Applications

Equipped with a 320mm focal length triple-grating turret spectrometer, covering 500nm–1050nm with three gratings (600, 1200, and 1800 lines/mm). It supports 785nm and 532nm dual-channel confocal micro-Raman spectroscopy, achieving a Raman spectral resolution of ≤2 cm⁻¹ and a spatial resolution of ≤1μm. The signal-to-noise ratio (SNR) of the third-order peak of single-crystal silicon is ≥20:1.

★ Features an infinity-corrected metallurgical microscopic imaging system, equipped with 20X, 50X, and 100X objectives, an upper illumination system, and a high-resolution camera (≥10MP). The system integrates Raman and confocal microscopic coupling modules.

Equipped with an automated XY scanning translation stage, covering X ≥ 75mm, Y ≥ 75mm, with a single-step translation error of ≤1μm.

Raman spectral range is configured for 785nm and 532nm excitation sources:

  • 785nm Raman spectral range: 60 cm⁻¹ – 3500 cm⁻¹
  • 532nm Raman spectral range: 60 cm⁻¹ – 4500 cm⁻¹ (optional)

Supports 785nm and 532nm laser wavelengths:

  • 785nm single-mode laser: Peak 785±0.5nm, linewidth ≤0.04nm, power ≤80mW, software-adjustable (precision: 1mW)
  • 532nm single-mode laser (optional): Peak 532±0.5nm, linewidth ≤0.04nm, power ≤80mW, software-adjustable (precision: 1mW)

▲ Utilizes a deep-cooled Raman-specific spectroscopic CCD camera, featuring a peak quantum efficiency (QE) >90%. The CCD operates at -60°C TE deep cooling (at 25°C ambient temperature), with an effective pixel array of 2048×256 and a pixel size of 14μm×14μm.

Based on confocal micro-Raman design, achieving high spatial resolution: XY translation resolution ≤1μm, Z-axis focusing resolution ≤2μm, enabling high-precision spatial imaging analysis.

Raman spectroscopy acquisition software includes hardware settings, sample parameter configurations, and multiple acquisition modes (single, continuous, accumulated, interval collection). It allows control over laser power, detector exposure time, and XY translation stage movement.

Software supports spectrum smoothing (S-G, Whittaker smoothing), fluorescence baseline fitting and subtraction (AirPLS), spectral normalization, peak identification, peak area calculation, and spectral database management with built-in spectral standards.

Features Raman spectral scanning imaging, allowing 2D Raman thermodynamic hyperspectral imaging based on characteristic peaks and peak areas, with automatic image stitching.

Supports multi-mode laser and fiber probe configurations for portable Raman testing. The standard working distance of the probe is 7.5mm, expandable to 29mm, with a 1.5m fiber probe armored with 8.5mm shielding, capable of withstanding 5kg.m tensile force.