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Problem 4. An echellette grating containing 1450 blazes (lines) per millimeter was irradiated with a polychromatic beam at an incident angle of 48 degrees to the grating normal. Calculate the wavelengths of radiation that would appear at an angle of reflection of +20, +10, 0, and -10 degrees for the first order, as can be seen in Figure 5. Recompute for the second and third orders as well.

Problem 4. An echellette grating containing 1450 blazes (lines) per millimeter was irradiated with a polychromatic beam at an incident angle of 48 degrees to the grating normal. Calculate the wavelengths of radiation that would appear at an angle of reflection of +20, +10, 0, and -10 degrees for the first order, as can be seen in Figure 5. Recompute for the second and third orders as well.

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Problem 4. An echellette grating containing 1450 blazes (lines) per millimeter was irradiated with a polychromatic beam at an incident angle of 48 degrees to the grating normal. Calculate the wavelengths of radiation that would appear at an angle of reflection of +20, +10, 0, and -10 degrees for the first order, as can be seen in Figure 5. Recompute for the second and third orders as well. 0, =48 Polychromatic Oreflected =48 Beam m =1 m =0 20 -10
Transcribed Image Text:Problem 4. An echellette grating containing 1450 blazes (lines) per millimeter was irradiated with a polychromatic beam at an incident angle of 48 degrees to the grating normal. Calculate the wavelengths of radiation that would appear at an angle of reflection of +20, +10, 0, and -10 degrees for the first order, as can be seen in Figure 5. Recompute for the second and third orders as well. 0, =48 Polychromatic Oreflected =48 Beam m =1 m =0 20 -10
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