[Meep-discuss] help

2009-09-09 Thread lfwang
Dear Steven and MPB users: Thank you in advance. How to calculate the light propagation in a medium of randomly arranged dielectric spheres? And how to design the symmetry points in the first Brillouin zones? Please help me. Best regards, Lan-fen Wang Institute of Chemistry, Chinese

Re: [Meep-discuss] relationship between the power intersity I' (units in meep) and the intensity I (units in SI).

2009-09-09 Thread Steven G. Johnson
On Sep 8, 2009, at 7:06 AM, 加祥 张 wrote: Meep tutorial says that the units of power and electric field in meep could be arbitrary which depend on the geometry, so I think that the unit of electric field in meep could be V/a, a is the lattice constant, Is it right? and the power

[Meep-discuss] 回复: meep-discuss Digest, Vol 43, Issue 7

2009-09-09 Thread 加祥 张
Dear Mr. steven:      I want to add kerr nonliear in my simulation and caculate the transmittance curve. For example, the nonliear index (experiment data) n2=0.0435um^2/W, if i want to get the changing of the index n2*I with  order of 1e-3, we should use pump intensity of   0.02299 W/um^2. 

Re: [Meep-discuss] 回复: meep-discuss Digest, Vol 43, Issue 7

2009-09-09 Thread Steven G. Johnson
See: http://ab-initio.mit.edu/wiki/index.php/Units_and_nonlinearity_in_Meep On Sep 9, 2009, at 9:04 PM, 加祥 张 wrote: Dear Mr. steven: I want to add kerr nonliear in my simulation and caculate the transmittance curve. For example, the nonliear index (experiment data) n2=0.0435um^2/W, if