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Echellette Grating (Hughey)

Last updated

Jan 8, 2021
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- Echellette Grating (Griffith)
- EDTA Chelation and Titrations

Contributor
Analytical Sciences Digital Library

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Name

Echellette Grating. A diffraction grating has 25,000 grooves uniformly spaced over 25 mm. It is illuminated at normal incidence by white light (380 – 700 nm). Find the angular range of the first-order and second order spectrum produced by the grating.

d (m) = _____________________________________

Fill out the table below.

λ, nm	Color	λ, m (1^st order)	θ_r (degrees) (1^st order)	λ, m (2^ndorder)
400	violet	4.00x10^-7	23.6	4.00x10^-7
465	blue
550	green
580	yellow
605	orange
700	red

Sketch an Echellette grating and show how the visible radiation is dispersed according to your calculations in the table above. Be sure to label ALL aspects of your drawing (e.g., d, θ_i, θ_r (λ or color) and n).

Contributors and Attributions

Christine Hughey, James Madison University (hugheyca@jmu.edu)
Sourced from the Analytical Sciences Digital Library

Contributors and Attributions

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