- #1
kelly0303
- 579
- 33
Hello! If I have 2 energy levels split by something of the order of 10 Hz (they can be connected by an electric dipole moment i.e. ##\Delta J = 0## and they have different parities), what would be the best way to measure this difference (even 10% error would be good, but the lower the error the better).
Here is what I have so far with my limited practical experience in spectroscopy: Doing normal Rabi/Ramsey spectroscopy I assume it wouldn't work, as I would need to generate a frequency at ~10Hz, which I don't think it's possible (or is it?). I can in principle still do a Rabi measurement with a detuned frequency, but I assume that the lowest frequency I can generate in practice would still be several orders of magnitude away from 10Hz, so it would take a very long time to populate the excited state enough to have good statistics, so I don't think that would work.
Another thing I can do is to use a Raman like measurement, where the 2 lasers have a frequency difference of 10Hz, but in practice lasers linewidths are much bigger than that, so I am not sure if I could get a good signal from there, i.e. if I can extract the central value with less than 10 Hz error (I don't know much about Raman type measurements, tho). I would appreciate any advice on this and comments on my ideas. Thank you!
Here is what I have so far with my limited practical experience in spectroscopy: Doing normal Rabi/Ramsey spectroscopy I assume it wouldn't work, as I would need to generate a frequency at ~10Hz, which I don't think it's possible (or is it?). I can in principle still do a Rabi measurement with a detuned frequency, but I assume that the lowest frequency I can generate in practice would still be several orders of magnitude away from 10Hz, so it would take a very long time to populate the excited state enough to have good statistics, so I don't think that would work.
Another thing I can do is to use a Raman like measurement, where the 2 lasers have a frequency difference of 10Hz, but in practice lasers linewidths are much bigger than that, so I am not sure if I could get a good signal from there, i.e. if I can extract the central value with less than 10 Hz error (I don't know much about Raman type measurements, tho). I would appreciate any advice on this and comments on my ideas. Thank you!
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