All Questions
Tagged with material-science experimental-physics
54
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Electron microscopy and Interatomic distances of miller planes [duplicate]
I am studying Transmission Electron Microscopy (TEM), and have been seeing in articles TEM images of different materials typically come accompanied by these diffraction patterns, caused by the ...
- 548
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1
answer
48
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How do materials scientists find and make candidate materials?
When searching for new materials that might exhibit interesting quantum effects such as superconductors or topological insulators, how do experimental physicists go about the process of making ...
- 147
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23
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Vibrating object on optical table
Wikipedia says this about optical tables:
Many optical systems require that vibration of optical elements be kept small. As a result, optical tables are typically very heavy and incorporate vibration ...
- 1,440
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33
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Question regarding Neel temperature for antiferromagnetic material
I am doing an experiment, where I find that the neel temperature (AFM - PM transition) of a sample is increasing with increase in the magnetic field. Although I tried to find an explanation, I could ...
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Can infrared light pass through solid materials
I have an IR sensor at about few tens of mm (millimeter) from a heating source (incandescent bulb or heating element). The phototransistor in my sensor is lead lined but I guess it is sensitive to a ...
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1
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147
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Refractive index of titanium dioxide films as a function of wavelength for 400 C ° annealed films
I used UV-Vis/NIR spectrophotometer to extract the measurements of refractive index %R corresponding with wavelengths in the range of 190-1100 nm of TiO2 thin film deposited on FTO glass substrate. ...
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27
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Definition of carrier concentration $p = 0.1$?
When reading some literature in physics I came across expressions like:
"Our super-high-resolution ARPES experiments reveal an insulator–superconductor transition at a critical doping level of P ...
1
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5
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320
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How to figure out whether vacuum or air is inside a bottle?
I'm trying to figure out how air tight the sealing of a bottle is. A friend is crafting privately beer and is using a machine like this (though the depicted one below is much more advanced..):
For ...
- 1,507
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190
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How can I determine the initial conditions for the fit applied to the data obtained from the ellipsometry measurement?
For thin film solar cells, I need to know the refractive and extinction coeffiecients of these materials in order to make optical calculations of some materials on the computer.
For this I had to use ...
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1
answer
210
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Relationship between extinction coefficient and the imaginary refraction index
I'm trying to add an ITO glass material made by SPI to an FDTD Lumerical simulation. For that I need the real and imaginary parts of the refractive index. In their website though, they give the real ...
- 113
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101
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How might one design an infinity balloon without an appropriate material
A while ago, I was working on a idea I had. I wanted to design a hypothetical sail that was effectively weightless. Why I wanted a 'weightless' sail is a rabbit hole that I'm not going to get into but ...
- 151
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29
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Confusion between statically determinate and indeterminate beams
Why is it that statically determinate beams can take some degree of misfits without any generation of strains or stress, but not statically indeterminate beams?
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88
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Ovalization of a pvc pipe under a weight
I'm not sure if this is the right place to ask this question, but it came up in one of my physics courses so here goes.
I want to measure a weight using a Fiber Bragg Grating optic cable. Someone ...
- 31
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1
answer
39
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Specific applications of the various modes of optical microscopy [closed]
My question is primarily about reflected and transmitted light microscopy, and the BF and DF modes in both. I am aware of the basic working principles, to state it down briefly:
Transmitted light ...
- 881
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96
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Why does this sine wave like pattern appear in cut plastic?
I was opening a package that was plastic wrapped from the super market with the prong of a fork, and this pattern (in the picture) emerged:
I started by poking the prong of the fork (right side of ...
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