c*****e
发帖数: 44 | 1 Sincerely ask: Are there any standard method, or what methods have been
tried?
Thanks very much. |
b****y
发帖数: 103 | 2 well I never heard about the impedance of an optical system
I ponly heard about the impedance of a eletrical circuit
so what's your defination?
【在 c*****e 的大作中提到】
: Sincerely ask: Are there any standard method, or what methods have been
: tried?
: Thanks very much.
|
c*****e
发帖数: 44 | 3 The detailed definition is here:
http://en.wikipedia.org/wiki/Electromagnetic_impedance
It's still a acceptable reference.
【在 b****y 的大作中提到】
: well I never heard about the impedance of an optical system
: I ponly heard about the impedance of a eletrical circuit
: so what's your defination?
|
b****y
发帖数: 103 | 4 here is what I think.
I guess you want to characterize the impedance of a waveguide.
from the reference in wikki, it seems to me that you only need to figure out
the cutoff frequency.
so maybe you can first estimate the cut off frequency, then get a tunable
laser near that range, and find out the cut off frequency by fine tuning the
laser.
after the cut off frequency is found, you can get the impedance
【在 c*****e 的大作中提到】
: The detailed definition is here:
: http://en.wikipedia.org/wiki/Electromagnetic_impedance
: It's still a acceptable reference.
|
c*****e
发帖数: 44 | 5 I need to characerize the impefance of more complex system, plasmon
couplers for example.
out
the
【在 b****y 的大作中提到】
: here is what I think.
: I guess you want to characterize the impedance of a waveguide.
: from the reference in wikki, it seems to me that you only need to figure out
: the cutoff frequency.
: so maybe you can first estimate the cut off frequency, then get a tunable
: laser near that range, and find out the cut off frequency by fine tuning the
: laser.
: after the cut off frequency is found, you can get the impedance
|
