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I have some basic doubts- Why is TE mode so important in rectangular silicon optical waveguides? Why not TM mode? Why most researchers always prefer single mode over multimode waveguide? Could any...
27 September 2022 9,275 7 View
In a standard nanoindentation test of thin films, one must be careful about the indentation depth. If the penetration is too low (comparable to roughness), the resulting hardness can be much...
21 September 2022 6,637 1 View
i am trying to learn laser locking in Rb87 saturation absorption spectroscopy setup, while reading few papers i cam across the term "subnatural linewidth", I understand linewidth to be the FWHM of...
04 September 2022 7,783 2 View
Hi everyone, Are there any biodegradable polymers around that can be used to form a shell (containing aqueous system) with high transparency, high permeability ? From what I know nowadays people...
24 August 2022 2,755 3 View
Suppose we want to coat Silicon nitride as an ARC layer. When using a refractive index with their wavelength PC1D show an error.
03 August 2022 2,976 0 View
I have to analyse my Chitosan Cu nanocomposite sample through XPS. I need an idea about the energy of Ar+ ion and the time of sputtering if etching is done prior to XPS analysis.
11 July 2022 8,485 3 View
I am doing FMR frequency variation by sweeping the magnetic field using a thin film, but the FMR spectra show multiple peaks merged in a single peak. 1. do I have to take the linewidth and...
11 July 2022 1,347 0 View
Hi, everyone. I already synthesized the zinc oxide nanoparticles using ( the pellets of bacteria with lysis buffer + zinc nitrate 0.25 M). However, I have made characterization By DLS. Zeta...
15 June 2022 1,907 2 View
Hi, I am simulating an optical waveguide structure (Type: Channel) in Synopsys RSoft. It's Silicon Nitride structure embedded in SiO2 background material. The OWG structure has multiple openings...
06 June 2022 4,268 0 View
in the chemical composition of zeolites the formula is written with alumina Al2O3 and silica SiO2 while in the synthesis sodium aluminate NaAlO2 and sodium silicate Na2SiO3 are used.
25 May 2022 2,320 2 View
What is lattice mode in RAMAN vibration mode? In general, can you help me about what the lattice mode is in the RAMAN analysis? I'm working on Sb2S3 thin films. During the Raman analysis, I saw...
21 May 2022 9,598 4 View
Hi I would prepare a homebrew stock of ferrite magnetic nanoparticles (MNPs) coated with silica oxide. I`m going to use this stock for gDNA extraction/purification. Do you have any suggestions...
18 May 2022 4,142 2 View
We are trying to apply spectral quasi linearization technique to solve fluid flow stretching sheet problem in matlab. We can solve the momentum equation alone in this method. We are in need of...
16 May 2022 7,584 0 View
Although the M-T measurement clearly exhibits an AFM behavior, the M-H measurement displays FM like hysteresis curve.
15 May 2022 9,694 3 View
I am studying on the occupation of particular activator (which is coordinated with 9 and 7 oxygen atoms) in a crystal host where the author mentioned this: 6c site in the 1-fold axis and 2b site...
13 May 2022 5,521 2 View
Hello everyone, I want to study the change in oxygen vacancies in gallium oxide using AES. I looked for papers, but couldn't find any. If you have any references please let me know.
04 May 2022 2,033 3 View
The P2-type NaCoO2 cathode material was prepared by a sol–gel technique, and citric acid was used as a chelating agent. Stoichiometric amounts of sodium acetate (NaCH3COO) and cobalt acetate...
12 April 2022 5,154 1 View
I'm working on dielectric properties of bulk ferrites. The plots of dielectric constant with frequency and dielectric loss show Maxwell-Wagner behavior. FESEM images show there are grain and...
08 April 2022 5,712 2 View
Hello everyone, I want to electro polymerize PEDOT:PSS using 0.5 M 3,4-ethylene dioxythiophene (EDOT, Sigma-Aldrich, USA) aqueous solution containing 0.6 wt% of poly(sodium 4-styrene...
22 February 2022 1,393 1 View
Hello everyone, I have just started using Xpert highscore for analyzing my XRD raw data. I have access to PDF2 database(Powder diffraction file) using my university license. I have also just...
21 February 2022 4,796 8 View
Using a muffle furnace, I synthesised several ferrite materials with varying sintering temperatures. Cotton and wood are used inside a muffle furnace, but they are not burnt since the muffle...
20 February 2022 720 3 View
Hi, i am using electron beam evaporator to make 100 nm gold thin films. i am using 5 nm Ti as a adhesion layer on prime grade SiO2/Si substrate. Recently, I started to face the problem that...
11 February 2022 2,022 0 View
if we can design the short base-pairing ssDNA by the 3', 5' and middle of Aptamer, and testing the DNA statue aftter adding the target, such as arsenic?
21 January 2022 6,944 2 View
To prepare TEM samples from a wire of 1 mm in diameter, I am looking for a suitable preparation method other than the FIB.
15 January 2022 373 3 View