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Richardson Gratings™ 79 Grooves, 25 x 50mm, 74° Blaze Angle, Echelle Grating

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Specifications

概況

Type:
Echelle Grating
Master Reference:
402E

物理和機械特性

Dimensions (mm):
25.0 x 50.0 ±0.1
Clear Aperture (%):
>90
Construction:
Ruled Grating
Length (mm):
50.00
Thickness (mm):
6.00 ±0.5
Width (mm):
25.00
Centering of Ruled Area on Substrate (mm):
±1
Alignment of Grooves to Edge (°):
±0.15
Groove Spacing Tolerance (%):
<0.05

光學特性

Groove Density (grooves/mm):
79
Blaze Wavelength (nm):
All
Blaze Angle (°):
74
Coating:
Aluminium
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Float Glass
Reflected Wavefront, RMS:
λ/4
Polarization:
Unpolarized
Spectral Order (m):
98

Regulatory Compliance

RoHS:
Certificate of Conformance:

產品概覽

  • 最高的分辨能力及色散
  • 低溝槽密度適用於更高階
  • 溝槽間距容差 <0.05%
  • Custom Sizes Available

Richardson Gratings™ 階梯反射繞射光柵具備卓越的分辨能力及色散,超越其他反射繞射光柵。這類光 柵的特性包括粗略溝槽間距、相對較低的溝槽密度,以及高閃耀角度,適合用於近紫外線至紅外線波長 (~20μm)。Richardson Gratings™ 階梯反射繞射光柵適合各種應用,例如體積精巧的高分辨率光譜儀,具 備高角度色散及光通量。可依要求供應客製尺寸。

注意: 本系列光柵的表面非常敏感,操作時絕對不得碰 觸。如果需要清除粉塵粒子,建議以乾淨的壓縮空氣進行非接觸式清潔。

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資源

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Richardson Gratings™ Unboxing

Learn about high-precision diffraction gratings from Richardson Gratings available in-stock and ready for immediate shipping from Edmund Optics.

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What are diffraction gratings?

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What is the grating equation?

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What is the blaze angle and blaze wavelength of a grating and how are they related?

How do I handle and clean my gratings?

I would like to select a narrow band of light with a grating, lens and pinhole setup. Since the grating’s resolving power is decided by the number of grooves illuminated by light, can it resolve anymore?

Absolute Efficiency

Blaze Angle

Blaze Wavelength

Diffraction

Diffraction Grating

Grating Equation

Groove Density

Holographic Grating

Nth Order

Relative Efficiency

Ruled Grating

Removing Protective Plastic Coating

A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

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