Hi:
I take the mode of the racetrack resonator in harminv,please see the
attachment about the resonator.
Run 5000times,the results(please see the following),there is a negative Q,
So I increase the time to 10000times,but there is no any
resonance frequency,nothing.
I do not know why?
Maybe because 1.when the run time10000times,the energy in the
resonator decay to nothing?There is output waveguide.
2.The pulse of the source is too
large:(define-param fcen 0.6452) ; (define-param df 0.03) ;
3.Other reasons?
Thank you
Run 5000 times:
harminv0:, frequency, imag. freq., Q, |amp|, amplitude, error
harminv0:, 0.632758606206416, -6.405821852701e-5, 4938.93383828349,
7.6481979243
5801e-5, 7.35731588554319e-5+2.08921862199438e-5i, 1.13884136064198e-6
harminv0:, 0.634139077689153, 6.3845430826049e-4, -496.620564294496,
1.765386207
05626e-5, -3.85423060294552e-6-1.72279932802914e-5i, 1.27657204055308e-4
harminv0:, 0.637078813387616, -2.1898717338507e-4, 1454.60303345568,
0.003161991
49313152, -3.41479654890852e-4-0.00314349834546349i, 4.45579667504362e-6
harminv0:, 0.638294225675256, -0.00442758212659312, 72.0815794518535,
0.00384637
314777458, -0.00382657303176874+3.8977586439066e-4i, 1.7690362681163e-5
harminv0:, 0.641112770168409, -6.03787072813778e-5, 5309.09652620323,
3.42459588
770777e-4, -1.83448379969782e-4+2.89180327525079e-4i, 8.50871418551547e-9
harminv0:, 0.641538548778061, -4.77778937625707e-5, 6713.75921222216,
6.44830941
656465e-4, -1.46293513286071e-4-6.28016839971653e-4i, 5.74439540915849e-9
harminv0:, 0.644169348480598, -0.00251338187344341, 128.147925965199,
0.00828086
547263856, 0.00821595722867782-0.00103478490154919i, 2.85002301583153e-6
harminv0:, 0.645547648488407, -5.65985831123763e-5, 5702.86050453484,
5.11695153
753084e-4, 1.97516850072527e-4-4.72037100567126e-4i, 8.88366136566103e-8
harminv0:, 0.645697891484103, -3.96021533029622e-5, 8152.30786245914,
0.00185830
18110976, 9.27271615536064e-4+0.00161042012287159i, 7.69300609102794e-9
harminv0:, 0.648850810359503, -0.00318961256020143, 101.713107487658,
0.00674633
310354831, -0.0040064109830787-0.00542786158433486i, 4.56136355926527e-6
harminv0:, 0.649882002579438, -3.77565464295435e-5, 8606.21619342445,
4.14597275
457115e-4, -3.35018333130472e-4+2.44240900102631e-4i, 1.39933291386816e-7
harminv0:, 0.654299639187185, -5.82600542140958e-5, 5615.33668319931,
1.90919409
062167e-4, 1.60867652133829e-4+1.0281935252469e-4i, 8.60968715266792e-8
harminv0:, 0.654725094114282, -9.03885580844392e-5, 3621.725514764,
1.4933091405
882e-6, -1.0515435297591e-6-1.06029637101427e-6i, 7.77711726381791e-6
harminv0:, 0.658623878519041, -7.37315567651975e-5, 4466.36357222504,
5.86948585
705714e-5, -3.55998195560065e-5+4.66662540836433e-5i, 3.8173415549977e-7
run 0 finished at t = 5333.35 (106667 timesteps)
<<attachment: Slide1.JPG>>
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