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Simulations of a frequency-chirped magneto-optical trap of MgF



Kayla Rodriguez, Nickolas Pilgram, Daniel Barker, Stephen Eckel, Eric Norrgard


We simulate the capture process of MgF molecules into a frequency-chirped molecular MOT. Our calculations show that by chirping the frequency, the MOT capture velocity is increased by about of factor of 4 to 80m/s, allowing for direct loading from a two-stage cryogenic buffer gas beam source. Moreover, we simulate the effect of this frequency chirp for molecules already present in the MOT. We find that the MOT should be stable with little to no molecule loss. The chirped MOT should thus allow loading of multiple molecule pulses to increase the number of trapped molecules
Physical Review A


Laser cooling, diatomic molecules, magneto-optical trap


Rodriguez, K. , Pilgram, N. , Barker, D. , Eckel, S. and Norrgard, E. (2023), Simulations of a frequency-chirped magneto-optical trap of MgF, Physical Review A, [online],, (Accessed May 24, 2024)


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Created September 8, 2023, Updated September 20, 2023