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Gratings

1. What application is the grating planned for (if this can be disclosed)?

2.

Form of grating surface

3.

Type of imaging grating

4. Imaging gratings

A. Resolution or groove density

B. Dimensions of desired sensor intended for application

C. Maximum focal lengths

5. Size of grating

6. Size of light spot on grating/minimal size
     of diffractive surface

A. Length (parallel to grooves)

A. Length (parallel to grooves)

B. Diameter

B. Diameter

C. Where applicable, width (perpendicular to grooves)

C. Where applicable, width (perpendicular to grooves)

7.

Is the light in the application polarized?

8. Required diffraction efficiencies (relative to mirror)

9. Desired reflective layer (e.g. aluminum or gold)

10. Required planarity of diffractive wavefront? (x/λ at 633nm)

11. Substrate material (e.g. NBK7, fused quartz, Zerodur)

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