532nm带通滤光片

作为可见光谱中的绿光，532nm 光表现出高单色性、相干性和比能量输出，通常由倍频固体激光器（例如 Nd:YAG）产生。

  • 应用1 ：在激光打标和切割系统中，532nm带通滤光片可阻挡非目标波长的杂散光，将532nm激光能量集中到非金属表面（例如塑料、陶瓷）上，实现高精度打标和复杂材料加工。
  • 应用2 ：对于流式细胞仪或荧光显微镜中的生物医学检测，该滤光片可隔离由532nm光激发的荧光信号，消除背景噪声，从而提高细胞分选或荧光成像的灵敏度和准确性。
  • 应用3 ：在使用拉曼光谱仪进行环境监测时，532nm带通滤光片可抑制强散射光和噪声，仅允许532nm激发光聚焦在样品上，从而能够清晰地获取来自分子振动的特征拉曼信号，从而进行精确的污染物成分分析。

BP532 滤波器演示

特色产品和应用

  • Raman Spectroscopy (Laser Line Filter)

    • OD > 3
    • FHWM <= 3nm

    Extremely narrow FWHM is needed to pass only the laser line and reject a large portion of the surrounding laser noise. High OD provides deep blocking of unwanted light, but a separate, even higher OD edge or notch filter is used to block the main 532 nm scattered light from the sample.

    BP532-1 

  • Laser Line Clean-up/OEM Laser Systems

    • FWHM < 5nm
    • OD > 3

    Used directly on a 532 nm laser (often frequency-doubled Nd:YAG) to eliminate spontaneous emission, residual pump light, and harmonics. Narrow FWHM ensures spectral purity, and high OD blocks unwanted out-of-band radiation.

    BP532-3 

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