Theoretical model for ultracold molecule formation via adaptive feedback control
Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN: 0953-4075, Vol: 39, Issue: 19, Page: S1001-S1015
2006
- 33Citations
- 19Captures
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Conference Paper Description
We theoretically investigate pump-dump photoassociation of ultracold molecules with amplitude- and phase-modulated femtosecond laser pulses. For this purpose, a perturbative model for light-matter interaction is developed and combined with a genetic algorithm for adaptive feedback control of the laser pulse shapes. The model is applied to the formation of Rb molecules in a magneto-optical trap. We find that optimized pulse shapes may maximize the formation of ground state molecules in a specific vibrational state at a pump-dump delay time for which unshaped pulses lead to a minimum of the formation rate. Compared to the maximum formation rate obtained for unshaped pulses at the optimum pump-dump delay, the optimized pulses lead to a significant improvement of about 40% for the target level population. Since our model yields the spectral amplitudes and phases of the optimized pulses, the results are directly applicable in pulse shaping experiments. © 2006 IOP Publishing Ltd.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33749174410&origin=inward; http://dx.doi.org/10.1088/0953-4075/39/19/s14; https://iopscience.iop.org/article/10.1088/0953-4075/39/19/S14; https://dx.doi.org/10.1088/0953-4075/39/19/s14; https://validate.perfdrive.com/fb803c746e9148689b3984a31fccd902/?ssa=b778787b-d087-4619-890d-c1ffc8fb5ac2&ssb=07090201139&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1088%2F0953-4075%2F39%2F19%2FS14&ssi=8e043ddc-8427-4ef2-aedc-844758aca1e7&ssk=support@shieldsquare.com&ssm=786602592679915691356763622412115266&ssn=299377157c8fcfacab096058d72111336473a842bdc0-9b7b-4e59-b9346f&sso=08b360fa-9e3578620ac42631486b3e36f55bb557f7c2658258f20d9e&ssp=43035121511719940589172053353278615&ssq=56644359272520611039741132786392930090650&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJyZCI6ImlvcC5vcmciLCJfX3V6bWYiOiI3ZjYwMDBiM2EzMDFlNy1mMjVlLTRkMzktOTQ0Yi1hYjlhOGY0NDkwYzYxNzE5OTQxMTMyNTY0NjUxNTkyNTMyLTBjMGQ1ODIwN2RkYzgxOWMxMzU2NzAiLCJ1em14IjoiN2Y5MDAwZWQ3OGYyMmMtODkyYi00NTZhLWFmZTItMzg4OWE4YzkyNDE0OS0xNzE5OTQxMTMyNTY0NjUxNTkyNTMyLWE5NzNkZWM5M2JlNjRlMTUxMzU2NzAifQ==
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