All Questions
Tagged with wavelength diffraction
52
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Why is the shorter the wavelength, the smaller the object you can image? and vice-versa?
I know that the shorter the wavelength the smaller the object you can image clearly. Why wavelength matters in imaging something? How having big wavelength wont let u image smaller object, like if u ...
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What is the upper limit of size for diffracting an object?
All items in the universe can be said to have a De Broglie wavelength which is significant if that wavelength is comparable to the object's size (I don't have to worry about my wavelength diffracting ...
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Why Do Harmonic Components Define Wavelength in Diffraction and Interference Phenomena?
I'm exploring the physical principles underlying diffraction and interference, specifically how these phenomena depend on the wavelength of harmonic (sinusoidal) components of a wave. My question ...
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Finding the Bremsstrahlung in diffraction patterns of NaCl
I recently got the chance to measure the diffraction pattern of a NaCl crystal using the Bragg-Brentano method. I can see the peaks caused by the characteristic lines of the used X-ray tube (in this ...
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DIY Spectrophotometer doesn't work properly in the IR range
I've built an optical spectrometer by following the instruction given on the Theremino website: Theremino_Spectrometer_Construction.pdf, but I'm having a little issue with it.
Everything works ...
- 321
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470
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Young's double slit experiment with two wavelengths of light
I know that a double-slit experiment pattern for blue, and red light individually gives the intensity patterns easily found in textbooks. But I fail to understand the exact pattern produced by a ...
- 413
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Photon though a single-slit and uncertainty in the $z$- (longitudinal) direction
Heisenberg's uncertainty principle is sometimes invoked in explaining the width of the diffraction pattern as light passes a single slit. In the case of single photons, when a photon is directed ...
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Do neutrons change their wavelengths when diffracted?
Both neutrons and X-rays are used in diffraction. In XRD, the diffracted beam is of the same wavelength of the incident beam. The reason is that X-rays are EM waves which cause electrons to vibrate. ...
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Huygens principle and small aperture
Does Huygens principle depend on the ratio of the wavelength and the dimension of the aperture?
Do waves extinguish themselves by ratio 10 or more due to interference, e.g. will the wave pass through ...
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Why is the resolution of a tunneling microscope not limited by the wavelength of the electrons?
Why is the resolution of a tunneling microscope not limited by the wavelength of the electrons? Is it impossible for the electrons that are tunneling across the gap to appear somewhere in the gap, ...
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Where does the 1.22 come from in Rayleigh criterion for circular apertures?
For the formula 1.22, $\lambda/b$, which describes the angle at which resolution occurs, where does the 1.22 come from? I have looked at the derivation and there doesn't seem to be any explanation?
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Will there be any diffraction if the gap width is smaller than the wavelength?
As the diffraction will be the largest when the wavelength is equal to the gap width, I wondered if there would be any diffraction if the gap width is smaller than the wavelength, and If there is, why ...
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When is diffraction most pronounced?
My notes says the following things about diffraction:
The larger the ratio of wavelength to slit (or object) width, the more pronounced the diffraction is and the more spread out the wave energy is. ...
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How Small a Slit can Light Pass through?
If you imagine light source passing through a single slit of variable thickness, as you lower the thickness of the slit the light will diffract more and more until the slit is small enough that no ...
- 535
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Maximum resolution of lens with infinite aperture
Because the resolution of an objective is limited by the diffraction of its circular aperture, I don't understand why an infinite lens can not have an infinitely good resolution power.
People use Abbe ...
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