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Results tagged with diffraction
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user 44840
Diffraction is defined as the bending or flaring of light around the corners of an obstacle or aperture into the region of geometrical shadow of the obstacle. This flaring is consistent with the spreading of wavelets in the Huygens construction. Diffraction occurs for waves of all types, not just light.
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Bandpass of diffraction grating - exit slit width?
I'm supposed to derive a relation for the range of wavelengths that's being transmitted by a spectrometer (bandpass) in terms of the dispersion, focal length and exit slit width.
Given grating is $10 …
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Fabry Perot Etalon - changing wavelength and plate distance
Given reflectivity $R = 0.75$, an etalon is used as an interference filter, transmitting light of wavelength $4.3\mu m$ at normal incidence. The full width half maximum is about $\Delta \lambda = 0.2 …
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Quick question on convolution - Diffraction through a pair of slits
We know that the fourier transform of the amplitude function (in terms of $y$) gives you the amplitude function (in terms of $\theta$)
Consider a pair of triangular slits:
Fourier transform of G(y …
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Covering centeremost slit of a N slit diffraction grating - what happens?
Without covering the slit, we have the usual diffraction:
$$u = u_0 e^{i(kz-\omega t)} \space \frac{1- e^{iN\delta}}{1- e^{i\delta}} = u_0 e^{i(kz-\omega t)} e^{i(\frac{N}{2}\delta - \frac{\delta}{2}) …
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Covering centeremost slit of a N slit diffraction grating - what happens?
For an N-slit diffraction grating, the distance from a maxima to a minima at order p is given by
$$\delta \theta = \frac{\lambda}{Np}$$
What happens to this width when the centremost $\frac{N}{2}$ slit …
- 943