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References

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  1. R. A. Brown, R. L. Hilliard, A. L. Phillips, Appl. Opt. 21, 167 (1982).
    [CrossRef] [PubMed]
  2. S. Engman, P. Lindblom, Appl. Opt. 21, 4356 (1982).
    [CrossRef] [PubMed]

1982 (2)

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Figures (2)

Fig. 1
Fig. 1

Measured angles of incidence for the intensity maximum position in the Littrow mounting of the R4 grating plotted as a function of λ2. The central point is estimated from Fig. 2 of Ref. 1 for λ = 546.1 nm. The plot indicates a linear dependence of the maximum intensity position on λ2. The line drawn through the points intersects with the ordinate for λ = 0 at α ≈ 75.4° being an estimate for the blaze angle of the R4 grating.

Fig. 2
Fig. 2

(A) Groove profile of the R4 grating and the mounting used to measure the blaze angle. When α > θ the blaze is described by the diffraction in the slit defined by edges a and b prior to reflection from the reflecting facet (B). In this mounting the influence of the steep groove side is excluded. For a detailed description of the model see Ref. 2.

Tables (2)

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Table I Blaze Angle Determination by Intensity Measurements

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Table II Blaze Angle Determination by Recording Blaze Minima

Equations (2)

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θ α 3 tan 3 θ π 2 m 2 9 tan 4 θ ,
n ( n π ) 2 = min ,

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