Timeline for Energy of light as EM wave and photon
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| Oct 15 at 15:03 | comment | added | mmesser314 | 3blue1brown has a series of videos on physics. for an explanation of why the wavelength changes in a medium, see But why would light "slow down"? | Optics puzzles 3 | |
| Oct 15 at 13:02 | comment | added | Root Groves | Macron also its better to use η when talking about wave propagation because cε cannot contain phase shift between E and H while η does. | |
| Oct 15 at 12:48 | answer | added | Root Groves | timeline score: 0 | |
| Oct 15 at 10:52 | comment | added | James | An electromagnetic wave leaves various traces/wakes of its passing, but a photon leaves theoretically no trace of its passing, so the photon seems to be a more confined "particle"-form of energy transfer compared to an arbitrary electromagnetic wave-based energy transfer. | |
| Oct 15 at 10:45 | history | edited | Qmechanic♦ |
edited tags
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| S Oct 15 at 10:38 | history | suggested | Refik Mansuroglu | CC BY-SA 4.0 |
Cleaned up Latex expressions and grammar errors/missing articles etc.
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| Oct 15 at 10:34 | review | Close votes | |||
| Oct 15 at 11:27 | |||||
| Oct 15 at 10:18 | comment | added | naturallyInconsistent | You need to be clearer with your questions. You really have two questions, mostly unrelated to each other, mashed into one post. For free space, there is really no problem; the classical intensity expression is easily connected to the quantum expression by changing the number of photons per unit time. As for the behaviour of electromagnetic energy inside a material, the fight between people who believe different expressions should be considered, is still ongoing, after almost a century. You should just look it up. | |
| Oct 15 at 10:18 | review | Suggested edits | |||
| S Oct 15 at 10:38 | |||||
| Oct 15 at 10:16 | comment | added | Ofek Gillon | The energy of a single photon is $hf$, and in vacuum $f=c/\lambda$ so the formula you wrote is true in vacuum but not in different media. f doesn't change when entering a medium | |
| Oct 15 at 10:06 | history | asked | Macron | CC BY-SA 4.0 |