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Stepped Grating

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Etches have a low grating count and a relatively large blaze angle. They are designed to utilize higher-order diffraction spectra. Etches are typically used in conjunction with other spectroscopic elements (gratings or beam splitters) to separate overlapping spectra. Etches offer high spectral resolution, making them ideal for high-resolution spectral applications.

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    • Commodity name: Stepped Grating

    Etches have a low grating count and a relatively large blaze angle. They are designed to utilize higher-order diffraction spectra. Etches are typically used in conjunction with other spectroscopic elements (gratings or beam splitters) to separate overlapping spectra. Etches offer high spectral resolution, making them ideal for high-resolution spectral applications.

    Grating Substrate Material: Float Glass

    Surface Finish: 60-40

    Dimensional Tolerance: ±0.5 mm

    Thickness Tolerance: ±0.5 mm

    Efficiency: 45%~65% @ Peak Wavelength

    Effective Aperture: 90%

    Damage Threshold: 350mJ/cm² @ 200ns Pulsed Laser

                                              40W/cm² (CW) Continuous Laser

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