What physical process determines the property of photon entanglement in a SPE?

For instance, both nitride NW-QDs and h-BN point defect based SPEs seem to exhibit photon entanglement. Which platform will provide stronger entanglement? I suspect, that purity of the single...

31 December 2019 8,377 2 View

How to remove HOPG substrate from thin film?

I have grown h-BN on HOPG by MBE and now I need to remove the substrate. Please let me know which process I should follow.

08 September 2019 6,082 3 View

Is it possible that phosphorus dopants escape from wafer at high temperature annealing (1000 deg )?

Phosphorus was implanted via plasma immersion in implantation technique.

05 June 2016 8,524 3 View

How could I calculate a) out of plane lattice mismatch and b) in-plane lattice mismatch between SiGe (67.93 degree) and Si (69.13 degree) ?

Si and SiGe . Kindly provide your answer with required formulas.

01 February 2015 2,357 1 View

What is the basic physical explanation of the acceptor-bound-exciton peak in PL for ZnMgO?

I have got references claiming acceptor peak at 3.33 eV [J.C. Fan, C.Y. Zhu, B. Yang, S. Fung, C.D. Beling, G. Brauer, W. Anwand, D. Grambole, K.S. Wong, Y.C. Zhong, Z. Xie, C.C. Ling, J. Vac....

11 December 2014 6,511 1 View

Why is the mobility of electron higher than that of hole?

10 November 2014 2,323 12 View

Is it possible to manipulate the band structure of any material to change the curvature of the band and thus change the effective mass and mobility?

07 August 2014 1,058 3 View

What is the basic physics behind choosing a peak as Acceptor-bound-exciton(AoX) peak in Photoluminescence (PL) measurements?

Acceptor-Bound-exciton peak of ZnO/ZnMgO.

07 August 2014 291 1 View

Does anyone have knowledge on the composition of ZnMgO?

07 August 2014 3,052 6 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View