Transfer pa formed molecules to v=o state Earliest work on RbCs molecule by Dave DeMille, Yale(2005) V=0 RbCs a 28000 「单MM ()(1)n Time of flight (us) 13545 13560 13575 13590 () (2)∑+1 (b) Non-coherent Pump-Dump method with pulsed lasers a3∑+ 1. Triggered the idea of molecules (v=37) transfer with Stirap (e 2000 (v=0 2. Triggered the idea of feshbach molecule STIRAP Internuclear distance R (A) 2/3/2021
2/3/2021 16 Transfer PA formed molecules to v=0 state Earliest work on RbCs molecule by Dave DeMille, Yale (2005) Non-coherent Pump-Dump method with pulsed lasers 1. Triggered the idea of molecules transfer with STIRAP 2. Triggered the idea of Feshbach molecule + STIRAP
Transfer pa formed molecules to v=0 state More recent work by Shin Inouye from Tokoyo(2010)using STIRAP 20x10 滥 41 10 Time(us) 5 Decay Similar technology as the Feshbach molecule transfer works 0 Molecule number is much smaller Still many left in other states -5 Internuclear separation(A) 2/3/2021
2/3/2021 17 Transfer PA formed molecules to v=0 state More recent work by Shin Inouye from Tokoyo (2010) using STIRAP Similar technology as the Feshbach molecule transfer works; Molecule number is much smaller; Still many left in other states
New applications of PA: Rydberg molecule Ultra-long range molecule former by one ground-state atom and one Rydberg atom 5s+ 30fs 5s+ 30p 5s+30d 479.4m n=35 298mm 1=-x=-55+5p 1000120014001600180020002200 R[ au nm 5s+5s Butscher et al. JPB. 2011 5s+5s Greene et al. PrL 2000 Homonuclear molecule with a large dipole moment; A sensitive probe to external fields 2/3/2021
2/3/2021 18 New applications of PA: Rydberg molecule Ultra-long range molecule former by one ground-state atom and one Rydberg atom Butscher et al, JPB, 2011 Greene et al, PRL 2000 Homonuclear molecule with a large dipole moment; A sensitive probe to external fields
New applications of PA: Ultracold molecular ions 3200 x'x'(Ca =91s±9s 2400 目0 B2t (b) Time [s] Producing and trapping ultracold molecular ions 15 R(units of a Eric Hudson group, UCLA, 2011 2/3/2021
2/3/2021 19 New applications of PA: Ultracold molecular ions Eric Hudson group, UCLA, 2011 Producing and trapping ultracold molecular ions
Summary: photoassociation 1. PA is still going to play a important role in ultracold physics with many new applications 2. There are still many un-explored species Group I: LINa, LiRb, Nak, Narb, KCs Group I+ Group ll(and Yb): ground-state(2)has both electron and magnetic dipole moments 3. Make sure your setup is BEC standard for future possibilities 2/3/2021
2/3/2021 20 Summary: photoassociation 1. PA is still going to play a important role in ultracold physics with many new applications 2. There are still many un-explored species: Group I: LiNa, LiRb, NaK, NaRb,KCs Group I + Group II (and Yb): ground-state ( 2Σ)has both electron and magnetic dipole moments 3. Make sure your setup is BEC standard for future possibilities