49 Questions 138 Answers 0 Followers
Questions related from Kaleem Ullah
Hello dear researchers, has anyone experience in obtaining the monolayer of material MoTe2 successfully by the mechanical exfoliation method ?? I have tried a lot of times, but the best thinner...
09 September 2018 7,559 3 View
Hello dear researchers, Is that true, due to the modulation, we can map the weak signals and alone with modulation, we can get super-resolution??? If we can get the weak signals by using...
09 September 2017 3,191 0 View
Hello dear all researchers, as we all know for the single sphere (Monomer) we have Mie solution of the Maxwells equations. By using Mie theory, we can easily calculate the multipolar effects...
08 August 2017 6,340 10 View
I have already used COMSOL, FDTD, and CST software, But they do not offer to map the near and far field distribution at the same simulation area around the particle. Is there any way to simulate...
08 August 2017 4,379 3 View
Hello dear researchers, Scanning near field microscopy is a standard method for mapping the near field localized amplitude and phase. Is that possible, by inverse calculation( Inversely fit the...
08 August 2017 565 17 View
Hello, dear researchers, I want to ask that I am using the system as shown in figure 2. I performed an experiment and I measured total reflected intensity from the CCD as shown in figure 1(a). I...
10 October 2016 842 7 View
Hello Dear researchers, especially from China, I want to study the NF and FF scattering from Chiral shape nanoparticle of the size ranges from 700 nm to 1200 nm, From where i can buy in a cheap...
06 June 2016 4,255 4 View
hello dear all, i have performed some NF measurement on nanoparticles whose size range in the 500nm to 1500 nm with wavelength of 532 nm. The system is like polarization microscopy. i have heated...
06 June 2016 7,852 4 View
Hello Guys i want to know that what are the possible ways that we can image the object beyond the diffraction limit using polarization Modulation?
05 May 2016 4,370 5 View
Hello dear researchers, I have Tio2 nanowires, what will be possible effects on scattering spectra if we anneal them at 700C and 800C. Thanks
05 May 2016 1,833 6 View
Hello, guys , I want to use DDA code on windows, someone told me it's better to use Linux for it, is like that??? What are its limitations in your point of view?? what is the easiest way to run...
04 April 2016 1,376 2 View
Hello everybody, I measured scattering of light from a nanoparticle (which is 70% non-spherical , and a composite of many closely packed ,unshaped particles inside it according to SEM results) by...
03 March 2016 5,695 4 View
Hello, all! our group (Research Institute of Nano resolution Optics) professor required students for Masters and Ph.D. who will work on the following areas: 1)Medical Imaging 2) Near field...
03 March 2016 7,591 3 View
Hello dear researchers, Hope so you all will be fine and doing great research.I want to ask the following questions about the internal field of nano-particles: 1) we can calculate the field by...
03 March 2016 9,500 11 View
Hello, i want to get glass nano beads, can anyone give information from where i can purchase it especially in china?
03 March 2016 6,979 4 View
Hi guys, we can break the diffraction limit by narrowing the Point Spread Function (PSF), I want to know that what are the possible ways to narrow the PSF ??
03 March 2016 2,034 6 View
HI, i have experimental optical microscopic results of Oral skin effected from cancer. I want to get the images by using some simulations methods like FDTD, FEM etc. Is it possible to have...
02 February 2016 2,319 2 View
What are the materials (non-biological and biological ) which are more sensitive to the Polarized Light Microscopy and how can we increase the sensitivity of the material under study. Thanks
02 February 2016 7,476 0 View
I have measured Oral skin sample by using IR Confocal Microscopy (A1MP) by Nikon. Please tell me is that the normal cell or effected from any decease???
02 February 2016 1,627 8 View
Suppose I have a fluorescence intensity image which having data like 2000*2000*8unit. How can I calculate the Ex, Ey and Ez of that intensity image? Any suggestions???
02 February 2016 4,888 4 View
Hello everyone, i did not understand why we are finding polarization states by assuming light as a wave? Don't you think that if we assume light also particle i.e photon then by using quantum...
02 February 2016 2,707 6 View
Hello everyone, i have oral skin sample which is effected by a cancer. I have no idea about what kind of cancer is and what looks like a cancereous cell because i have no biological background. So...
02 February 2016 572 6 View
hi every one please suggest me some SCI(A grade or B grade) journal in the field of Optics,Applied optics,photonics,nano-technology which takes minimum time to make decision, and also analysed...
01 January 2016 2,072 8 View
Hi everyone i have performed near field scattering measurement from my newly designed system the particle is composite particle the strange thing we have gotten is that in the inside of the...
01 January 2016 3,720 5 View
Hi everyone please suggest me software for optical simulations of the biological samples i.e scattering spectra and other properties(optical).
12 December 2015 982 0 View
Hi everyone recently i have performed simulation i take 5 particles which have distance more than their size (700nm) between them and i detected many azimuthal variation lobes than the usual...
12 December 2015 3,350 1 View
Hello every one hope so you all will be doing good work.. i want to ask a question i have got experimental results in which i have near field distribution around a nano-particle about one...
12 December 2015 4,920 2 View
Hello everyone hope so you will be fine. i have now a days reading research articles some are really good and they published in not very high impact factor journal but some are really not good to...
11 November 2015 9,149 1 View
Hi everyone i have exported 3D data of Scattered Ex from the COMSOL which is in 4 coloumns "X',"Y","Z","Ex" when i plot this data this data into the matlab then matlab did not plot because Matlab...
11 November 2015 5,066 7 View
Hello everyone i want to know that as we know stokes parameters are polarization observable and time average parameters which describe the polarization status. Can also they also explain...
11 November 2015 5,497 0 View
Hello everyone as you know when light scattered from any object then both kind of waves produced propagating and non propagating or evanescent waves. From the scattering spectra of the propagating...
11 November 2015 7,004 11 View
Please suggest me literature which covers the following points: (1) Introduction and application of Evanescent Electromagnetic Field (2)Scattering of Evanescent E.M waves to the near field...
11 November 2015 9,717 2 View
Hi actually i am trying to get the near field scattering spectra around a metal alloy by using a new numerical method for that method we have a system which is called polarization indirect...
11 November 2015 8,422 2 View
Hi everyone i have data from FDTD(software) which represents image in which on X& Y-axis are microns(as shown in figure) but when i plot that data into MATLAB it gives me image with pixels on...
10 October 2015 8,442 5 View
Hi everyone i have do some optical measurement which shows me a particle which is of 900 nm when i have performed SEM with higher magnification then i amazed that it was not a single particle...
10 October 2015 8,997 4 View
Hi everyone, I am Using FDTD for the Near Field scattering i got the data from FDTD in the form of data matrix where each pixels has value it shows me the image like in figure "Ex-FDTD" as...
10 October 2015 8,469 2 View
Hi all! I am using COMSOL 5, i have done some simulation related to the near field scattering now when i have exported data from the comsol and put it into the matlab and tried to plot it as image...
10 October 2015 371 11 View
I have the whole wafer data which is so big. I want to know about a software which is like google map from which we can click to the small part of data and it explore that part.. so does anybody...
06 June 2015 6,150 3 View
I have the whole wafer image data which is so big. i cannot use the excel because excel just have the capacity of 60000 pixels and my data is about 4million*4 million and it occupies memory of...
06 June 2015 1,783 4 View
I would like a code from lumeric FDTD and I would like to convert that code into MATLAB code. How can I do that? I would like to find the function of my simulations so for this I have to convert...
05 May 2015 2,514 2 View
How can I identify that the data which I export from a simulator is an array or matrix of which size and dimension in MATLAB? By finding this, I would like to fit that image by using some...
04 April 2015 5,792 10 View
In FDTD we just take a nano particle and take its near field results. and relate it with other microscopy experimental results But in the Experimental results we use some mirrors,Lenses but in...
03 March 2015 2,423 0 View
Can anyone suggest me that which software is good for the simulations of a light scattering through a nanoparticle in the sample. i need the electric field images and other results very close the...
03 March 2015 6,512 6 View
what are the best way to increase your knowledge related to optics??? are there open free online courses of physics and after that they will take exams and give certificate???? what about MIT?...
03 March 2015 7,424 5 View
You know Evanescent light has no diffraction limit and it having a lot of information related to nano-particle to the atomic level but it is lost and not participate as far-field. I have heard...
03 March 2015 4,761 10 View
Hello every one i have come to know that how to define the materials in FDTD(Lumeric) but for this we have to define Real and imaginary part of refractive index for the range of 400 nm to 700...
03 March 2015 7,088 6 View
hi i want to calculate the gas concentration, in ppm, in the closed chamber of volume 1025 cm3. i have a cylinder of mixture of NH3 and air with the 10 and 90% ratio respectively. we are flowing...
02 February 2015 906 2 View
I want to say what is the Hyperbolic media and how it can increase the resolution??????
02 February 2015 4,221 2 View
Except for Some Special Directions Non-Spherical Field or Other Broad Class of Fields.What you think kindly share your concept and personal experience
01 January 2015 2,723 4 View
