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| bio | website | nl.linkedin.com/in/… |
|---|---|---|
| location | Netherlands | |
| age | 31 | |
| visits | member for | 2 years, 6 months |
| seen | May 12 at 15:10 | |
| stats | profile views | 234 |
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Apr 29 |
answered | What is the difference between Sapphire and BK7? |
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Apr 22 |
answered | Light refraction and causality |
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Apr 20 |
comment |
Third-order susceptibilities of metals? Optical frequencies - visible and near infrared (say 500-1000 nm wavelengths.) |
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Apr 19 |
asked | Third-order susceptibilities of metals? |
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Apr 12 |
answered | How long do reflections take? |
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Apr 12 |
awarded | Citizen Patrol |
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Apr 11 |
comment |
3d holograms - How are they created? From 'Things often confused with holograms' on the Wikipedia page linked above: 'In 2010, there was a series of concerts ... which included Hatsune Miku ... performing on stage as a "holographic" character. This effect was actually achieved through a special method of rear projection against a semi-transparent screen.' |
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Apr 11 |
comment |
How can I determine transmission/reflection coefficients for light? Note that the amplitude coefficients will give you the phase shift in reflection or transmission, and the intensity coefficients won't. So you can go easily from amplitude to intensity, but you can only go from intensity to the modulus of the amplitude. |
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Apr 10 |
comment |
Good algorithm for in-experiment 1-D optimization? @HelderVelez, I have no desire nor time to create a self-learning system. Just want to hit the top of the curve approximately, preferably within a reasonable number of samples since each measurement takes time. |
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Apr 10 |
comment |
Good algorithm for in-experiment 1-D optimization? I added a description of the algorithm I have now. I'm still interested in discussions of the best method, perhaps in an engineering journal? |
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Apr 10 |
revised |
Good algorithm for in-experiment 1-D optimization? added description of slipshod algorithm |
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Apr 5 |
comment |
How much is 1 electron-volt (eV)? A subatomic particle is much, much lighter than a mosquito. In a back-of-the-envelope calculation, let's say a mosquito is 1.7 grams and a proton is 1.7 $\times 10^{-27}$ kg. So to have the same kinetic energy as a flying mosquito, the proton must be travelling about $10^{12}$ times faster than the mosquito. That's a big deal. |
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Apr 5 |
asked | Good algorithm for in-experiment 1-D optimization? |
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Mar 28 |
answered | How does a flat wedge lens work? |
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Mar 15 |
comment |
Can a light beam be used as a wire for telephony? Two students designed a system like this in a lab course I taught. It only worked one way over a distance of two meters and used cheap components, but it worked by modulating the voltage to a laser diode. |
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Mar 4 |
comment |
Quantum Cryptography Do you mean "polarization" instead of "spin" by any chance? |
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Feb 9 |
comment |
Matlab package: graphical calculus for quantum operations including beam splitters and polarizing beam splitters I'd be interested in helping to develop open source Python software for that... |
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Feb 7 |
comment |
How can a human eye focus on a screen directly in front of it? Good question! See also en.wikipedia.org/wiki/Bokode for the opposite effect. |
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Jan 31 |
comment |
What makes some laser beams visible and other laser beams invisible? Perhaps unnecessary to say, but when you are holding the pointer near your head, i.e. at eye level, make sure the beam isn't pointing towards other people either! |
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Nov 9 |
awarded | Nice Answer |
