freq = 5*10**14 plane = DispersivePlane(YTFSFPlane(UPMLPlane(PBCPlane(Plane((length,length)))))) plane.pbcx = False plane.pbcy = False # plane.pmly = False plane.pml_thick = 10 plane.set_pml() plane.tminc.enter = 2 plane.xtfsf = [50,251] plane.ytfsf = [50,251] metal = PolarDPlane(plane.shape, a=(9.39*10**15)**2, b=0, c=3.14*10**13, d=1, dt=deltat) metal.set_factor() circle(metal.mask, [121,151], 25, 1) circle(metal.mask, [181,151], 25, 1) for t in range(0,2000): plane.tminc.update(sin(2*pi*freq*t*deltat)) plane.update_hpbc() plane.update_dfield().update_dtfsf() metal.update(plane) plane.update_efield(metal) plane.update_epbc() plane.update_bfield().update_btfsf() plane.update_hfield() hdf5.require_group("timeline/"+str(t))
freq = 8.63*10**14 hdf5.attrs["freq"] = freq hdf5.attrs["deltat"] = deltat plane = DispersivePlane(YTFSFPlane(UPMLPlane(PBCPlane(Plane((length,length)))))) plane.pbcx = False plane.pbcy = False # plane.pmly = False plane.pml_thick = 13 plane.set_pml() plane.teinc.enter = 2 plane.ytfsf = [25,length-25] plane.xtfsf = [25,length-25] circle(plane.epsilon_r, [151,151], 25, 12) import pylab pylab.imshow(plane.epsilon_r[100:201,100:201]) pylab.savefig("/tmp/epsilon_r.png") pylab.clf() for t in range(0,2000): plane.teinc.update(sin(2*pi*freq*t*deltat)) plane.update_hpbc() plane.update_dfield().update_dtfsf() plane.update_efield() plane.update_epbc() plane.update_bfield().update_btfsf() plane.update_hfield()
def circle(self, center, r, value): circle(self.maskx, twodim.center_ex(center), r, value) circle(self.masky, twodim.center_ey(center), r, value) circle(self.maskz, twodim.center_ez(center), r, value) return self
def circle_e(self, center, r, value): circle(self.epsilon_rx, twodim.center_ex(center), r, value) circle(self.epsilon_ry, twodim.center_ey(center), r, value) circle(self.epsilon_rz, twodim.center_ez(center), r, value) return self
freq = 5*10**14 plane = DispersivePlane(YTFSFPlane(UPMLPlane(PBCPlane(Plane((length,length)))))) plane.pbcx = False plane.pbcy = False # plane.pmly = False plane.pml_thick = 15 plane.set_pml() plane.tminc.enter = 2 plane.xtfsf = [50,251] plane.ytfsf = [50,251] metal = PolarDPlane(plane.shape, a=(9.39*10**15)**2, b=0, c=3.14*10**13, d=1, dt=deltat) metal.set_factor() circle(metal.mask, [151,151], 25, 1) for t in range(0,2000): plane.tminc.update(sin(2*pi*freq*t*deltat)) plane.update_hpbc() plane.update_dfield().update_dtfsf() metal.update(plane) plane.update_efield(metal) plane.update_epbc() plane.update_bfield().update_btfsf() plane.update_hfield() hdf5.require_group("timeline/"+str(t)) hdf5["timeline"][str(t)]["ez"] = plane.ezfield
from yafdtd.grid import Plane, PBCPlane, UPMLPlane, XTFSFPlane, DispersivePlane, PolarDPlane from yafdtd.utils import * from scipy.constants import c from math import sin, pi from yafdtd.geometry import circle length = 301 plane = DispersivePlane(XTFSFPlane(UPMLPlane(PBCPlane(Plane("silicon-rod-25nm-xtfsf-te-dx1nm", (length,length)))))) plane.open("result/%s/%s.hdf5" % (plane.name, plane.name)) plane.wavelength(347.5*10**-9).dx(10**-9).save_attrs() plane.pbc(x = False, y = False).pml(thick = 13).set_pml() plane.teinc.enter = 2 plane.ytfsf = [50,length-50] plane.xtfsf = [50,length-50] circle(plane.epsilon_rx, [151,151.5], 25, 12) circle(plane.epsilon_ry, [151.5,151], 25, 12) circle(plane.epsilon_rz, [151,151], 25, 12) prepare("result/%s/ex" % plane.name) prepare("result/%s/ey" % plane.name) prepare("result/%s/hz" % plane.name) for t in range(0,2000): plane.t = t plane.teinc.update(sin(2*pi*plane.attrs["frequency"]*t*plane.attrs["dt"])) plane.update_hpbc() plane.update_dfield().update_dtfsf() plane.update_efield()