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Questions related to Optics
If I want to improve the photocatalytic activity of Ni doped ZnO thin film then which would be the better deposition process for thin film Spin Coating or Dip Coating?
19 June 2024 7,597 2 View
Hello everyone, without going too much into details, my thesis is about improving the bonding strength at the wire bonding process. I should focus on laser pretreatment of the substrate. Has...
18 June 2024 287 1 View
What if we have bottom emissive OLED and the top-emissive microcavtiy OLED, which one will have a longer lifetime referring to the TRPL measurement?
25 May 2024 3,560 0 View
I am working on modifying polymer membranes with surfactants to improve their pervaporation performance. I noticed that the glass transition temperature (Tg) of the membranes decreased as the...
17 January 2024 5,330 4 View
Hello all dear If you know any reference or website about this subject, please share it with me Thanks in advance
09 November 2023 3,190 4 View
I designed an mzi structure where the input is complete, but the output changes badly at the end of the coupling zone.How do I need to change the structure？
27 October 2023 455 0 View
Cell line studies
24 October 2023 5,108 0 View
I am facing an issue in electroplating of copper, Nickel and Gold over the sputtered thin film of Titanium and Copper on Alumina substrate. We are depositing 60nm Titanium and 400nm of copper. Our...
05 October 2023 3,757 2 View
Why is (BER) in the near distance its value (1e-54) and in the far distance its value is (1e-9)? Is there a law for these calculations, noting that I worked (simulation) on the (Optisystem software) ?
27 September 2023 3,303 1 View
Hi everyone, in Rsoft there are choose to select ridge waveguide, However the profile index is step ( 90 degree-angle ) so, i want to create ridge waveguide at 70 degree . could you please guide...
08 September 2023 1,173 1 View
This is my new area of research who can help with video tutorials on the material geometry, layers, material sweep, wave equation, absorbance etc.
25 July 2023 256 0 View
At present a large number of mirrors are placed around the receiver and concentrate all of them on the receiver.why can't we use convex lens to concentrate sunlight
15 July 2023 1,461 1 View
I need the steps for calcualting the EML for different frequecny and how to plot it in excel. How do I extract the computed data from comsol and plot it.
30 June 2023 8,423 0 View
Hi, I diluted a nanocomposite solution with D5x to measure its UV-Vis absorbance. What I did was just simply times 5 with the UV-Vis absorbance results I have and assume this is the full...
19 June 2023 5,381 1 View
Bonjour a tous, je voudrais savoir la relation entre la temperature du verre ( viscosite ) et le radius de la fibre de verre? merci
05 June 2023 4,698 1 View
Dear Altruists I would like to know that how can I model a stochiometric nanocluster e.g (CdSe)n with a spherical shape? Is there any software or code available to do so? Thank you very...
26 May 2023 8,868 0 View
Can anyone have any idea which Tauc plot I used for my work actually I plotted the Graphene oxide Tauc plot for different values of transition but in all the cases I got a plot with different...
14 May 2023 7,362 1 View
Several articles suggest, in a MOPA configuration high power fiber laser, the SRS can be mitigated by increasing the bandwidth of the OC FBG. How to determine the optimized bandwidth of such FBG?...
10 April 2023 3,083 3 View
Hi, When I tried to S2 Resampling using SNAP 9.0.0, I get an error and the processing fails. I kept all parameters default. Error as follows, A problem occurred during the target product...
15 February 2023 2,015 1 View
Could you explain briefly, what is the use of the effective mass approximation in semiconductor quantum dots ?
11 January 2023 1,973 2 View
I am attaching an image of RBS spectra plotted using RUMP software. The target is 193-Iridium on Aluminium backing. In the attached image, there are some parameters and (gross and net)...
28 December 2022 6,984 3 View
If we operate with Raman laser well above threshold, for example, about 10 times, then the increase of laser efficiency due to double-pass pumping should be minimum in comparison with a...
11 November 2022 7,518 1 View
Dear all! I am testing a new type of reactor where 2 liquids and a gas are made to interact together with a thorough and rapid mixing, but I am more fluid dynamic specialist than chemist and I...
12 October 2022 5,293 4 View
How can use the multiple launch fields by using the Rsoft Fullwave and MOSTMultiVarFormat. Namely, how can I design the name of the second launch field? Optionally, the name of launch file is the...
23 September 2022 647 0 View