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Calculate z using Wavelength and n
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Free online tool to calculate the z position of a diffracted beam given wavelength and order using thin-film interference principles.
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\n \n \n Enter the wavelength in nm (e.g., 550 for 550nm green light).\n
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\n \n \n Enter the refractive index of the medium (e.g., 1.5 for glass).\n
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\n \n \n Enter the diffraction order (m), typically a positive integer.\n
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Diffraction Angle (θ)
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Calculated value: –
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The angle (θ) in radians is approximately: –
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Key Assumptions
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Film Thickness: Assumed to be 100nm for this calculation.
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Angle of Incidence: Assumed to be normal incidence (0 degrees).
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