I am trying to simulate the lasing of a nanotube (RI=4) in Lumerical FDTD,<\/p>\n
Hello,
I am trying to simulate the lasing of a nanotube (RI=4) in Lumerical FDTD,<\/p>\n
I placed the plane source with a full range (400-800nm) or limited range (400-500 nm, 500-600 nm, 600-700 nm and 700-800 nm) at the begging of the tube. Then, put a DFTMonitor (Frequency-domain field and power) plane at the end of the nanotube. I also used lowQanalusis (analysis group) at the same place as the DFTMonitor, <\/p>\n
I can understand the results, there are different results between the DFTMonitor and lowQanalusis analysis group<\/p>\n
for DFTMonitor:<\/p>\n
In a wide range: 400-800 nm wavelength, the spectra are full with peaks, and the number of peaks is reduced as the nanotube’s radius is reduced (130 nm, 90 nm and 65 nm),<\/p>\n
In a limited range (400-500 nm, 500-600 nm, 600-700 nm, and 700-800 nm):<\/p>\n
For R= 65 nm, they are more peaks in the spectra compared to the full range, and the placed of the peaks are in the same places as the limited range increased, <\/p>\n
For R= 130 nm, the same spectra compared to the full range and are the same as the limited range increased, <\/p>\n
For lowQanalusis analysis group: <\/p>\n
In a wide range: 400-800 nm wavelength, the number of peaks in the spectra are increased and then reduced as the nanotube’s radius is reduced (130 nm, 90 nm and 65 nm), <\/p>\n
In a limited range (400-500 nm, 500-600 nm, 600-700 nm and 700-800 nm):<\/p>\n
For R= 65 nm, almost the same in a limited range (400-500 nm, 500-600 nm, 600-700 nm) but different for 700-800 nm limited range, <\/p>\n
The are more peaks in the spectra compared to the full range, and the placed of the peaks are in the same places as the limited range increased, <\/p>\n
For R= 130 nm, in the limited range (400-500 nm) only one peak and in a different place compared to the other limited range (500-600 nm, 600-700 nm, and 700-800 nm) that have two peaks.<\/p>\n
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