Edgar Owiti

10 Questions 18 Answers 0 Followers

Questions related from Edgar Owiti

Superposing phase maps for lithographic application?

Hi, i have phase maps of three color components, RGB, which i want to superpose to form a single profile for use in a lithographic process. What are some of the methods for doing this? i need each...

26 May 2016 8,060 1 View

How to increase transmittance of plasmonic resonator in COMSOL?

Hi, i am modeling my unit cell structure (plasmonic rectangular slit) in COMSOL with silver metal as top layer and ITO as substrate. My transmittance, |S21|^2 is too small , ~ 6%. I have...

23 April 2016 1,041 4 View

Left / right circular polarized light in a metasurface using COMSOL?

Hi there, i am working on a transmission mode in metasurface. How do i set the equation for the incident field to have circular polarization? Also how do i plot the electric field for the...

12 March 2016 7,549 8 View

Encoding phase information on a metasurface?

Hello, i would like to know the procedure/ method or any relevant information for obtaining and transferring phase information of a color image onto a metasurface. I have read some literature on...

10 March 2016 4,131 4 View

What are some of the causes of image cross-talk in metasurface holograms?

Cross-talk of images in Multiplexed metasurface holograms reduces their storage capacity. I am wondering, what causes the cross-talk? does it depend on the fabrication technique used or is it the...

23 February 2016 2,198 1 View

How do I include both phase and amplitude in a metasurface hologram?

For a conventional hologram, the phase and amplitude are recorded in the phase gratings of the photographic film. How would the situation for a metasurface hologram be? what are the requirements...

08 February 2016 5,139 6 View

Can COMSOL and HFSS be used interchangeably to simulate metamaterial and produce identical results?

Hi all, Has anyone tried to replicate the results of metamaterial unit cell in the paper by D.R. Smith, using COMSOL Multiphysics? In the paper, the HFSS simulation tool has been used. I have...

10 December 2015 5,068 4 View

What is the fundamental information required from an light field image to determine or estimate its depth information?

Hi all, i have read some literaure on light fiield depth estimation and it seems most of them use either resolution information or shading as a parameter to obtain or estimate depth of the scene....

24 November 2015 10,071 6 View

How can the permeability and permittivity of a metamaterial be determined?

in a research experiment to fabricate metamaterial, what is the procedure to determine both mu and epsilon, especially the mu and epsilon near zero (MENZ)?

21 September 2015 3,031 6 View

what is the procedure for finding the right dielectric material and metal when intending to obtain near zero permeability metamaterial (MNZ)?

Differernt papers show the use of different materials for simulations to obtain zero index metamaterial, is there some kind of a guide in choosing the dielectrics and metals?

06 April 2015 10,075 1 View