New answers tagged antennas
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You can also consider a photo detector as much more sensitive than a very sensitive antenna. Single photons are not typically detected with antennas, antennas use very large numbers of photons to generate voltage.
Historically (1801s) the DSE was said to show a pattern just like water thus the term "interference" and it must be due to waves. ...
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Let me first comment a sentence from SuperCiocia’s answer.
The photodetector clicks ... are caused by the photoelectric effect, that is bound electrons in the photodetector are in quantised orbits and are only capable of discrete energy jumps. (1)
In addition to this statement, please recapitulate that any observation of the wave behaviour of light during ...
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The simple answer is no. For a photon to be observed, all its energy must be collected. You cannot observe half a photon, either you observe it or you do not. The observation or detection can only happen in one place. This is often referred to as "the collapse of the wave function".
As an electromagnetics engineer I sometimes monitored very faint ...
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Light does not behave like a wave some times and like a particle some other times. Light behaves as light. Trying to categorise some behaviour as "wave-like" or "particle-like" is just an attempt to build an intuitive understanding for quantum phenomena by relating them to simpler everyday things like water waves or marbles hitting a wall....
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EM waves are generated in a circuit having a physical inductor and capacitor but in an ideal "$LC$" circuit charges move and oscillate without EM waves being generated. The reason for no waves is the assumption that the circuit consists of infinitesimally small elements and connections, in practice, having linear extent negligible compared to $\...
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It will originate from everywhere: the wires, the capacitor and all the elements carrying the current or the displacement current. Indeed, thee emission of the EM waves is described by the Maxwell equations where the sources are the time-dependent currents and fields.
What is confusing in LC circuit is that it is not suitable for the description of the ...
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