Hamza Humayun

7 Questions 13 Answers 0 Followers

Questions related from Hamza Humayun

Modelling of scattering from gold hemispherical nanoparticle on substrate (COMSOL)?

Hi, I am trying to get scattering cross-section from gold hemispherical nanoparticle (r = 20 nm) placed on the Silicon substrate. I am attaching my image of the geometry. Substrate is being...

12 December 2019 381 5 View

Plasmonic enhanced fluoresence (PEF)?

Hi, I wanted to clarify a few points about PEF phenomenon. 1. To observe the enhancement in PL setup, how important is the excitation wavelength of source? for instance if I am using AU NP around...

04 April 2018 10,033 4 View

Heating and cooling rates for annealing on metal nano islands formation?

Hi, In research papers, researchers mention the heating rates/cooling rates they used, for thermal annealing for formation of metal nanoislands (MNIs) after despostion of metal (using thermal...

04 April 2018 6,734 0 View

Rapid thermal annealing?

How does RTA differ from furnace annealing in its science? For RTA, what parameters I can vary to stabilize the temperature? For instance, lets say I want to use RTA at 500 C under nitrogen...

09 September 2017 462 2 View

Any advice on the scattering from solutions?

I am confused and need help to get out of the mental block i am in. I am looking at scattering in solutions. In one case i have laser dyes in ethanol and also solution with liquid crystal as...

08 August 2015 1,376 3 View

How can I see the changes in resonance with changing wavelength in MEEP?

Hi, İ was wondering if we have a method, similar to parametric sweep in Comsol, in MEEP. İ want to see the resonance in microdisk change with wavelength that is off and on resonance. Also I am...

04 April 2015 7,309 0 View

Does anyone know how the 4X4 method is developed by pochi yeh for anisotropic media?

'Electromagnetic propagation in birefringent layered media Pochi Yeh' www.opticsinfobase.org › JOSA › Volume 69 › Issue 5

06 June 2014 4,014 8 View