Rubidium atomic hyperfine filter for amplitude manipulation of ...

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Outline Femtosecond mode-locked laser pulse train excitation in rubidium 5 2 S 1/2 – 5 2 P 3/2 transition is used for direct mapping of the optical frequency comb to rubidium atom velocity comb. The induced comb-like structure in the rubidium ground state hyperfine level populations is monitored by a weak cw scanning probe laser. By introducing an additional rubidium cell, a hyperfine atomic flter is realized which modifes the amplitude of the selected frequency comb lines. The hyperfine optical flter can be a pure isotope 85 Rb or 87 Rb cell, in which case only that isotope will affect the optical frequency comb. 2
Time and Frequency Domain of Mode-locked Laser t t 1 One pulse E( t) ( t) e N pulses t i c Width: N / f(rep) 3
Page 1: DAMOP08 Meeting of The American Phy
Page 5 and 6: Rb Atoms Interacting with a fs Puls
Page 7 and 8: Rb Atoms Interacting with a fs Puls
Page 9: -500 0 500 1000 1500 2000 2500 3000
Page 12 and 13: 12 6 0 85,87 Rb filter, 795 nm fs l
Page 14 and 15: 80 MHz Freq. comb Rb 795 nm D1 dete
Page 16 and 17: 87 Rb - pure isotope cell Rb D1 795
Page 18 and 19: Cancellation of the coherent accumu

Rubidium atomic hyperfine filter for amplitude manipulation of ...

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