TY - JOUR
T1 - Coherent control of bond making
AU - Levin, Liat
AU - Skomorowski, Wojciech
AU - Rybak, Leonid
AU - Kosloff, Ronnie
AU - Koch, Christiane P.
AU - Amitay, Zohar
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/6/10
Y1 - 2015/6/10
N2 - We demonstrate coherent control of bond making, a milestone on the way to coherent control of photoinduced bimolecular chemical reactions. In strong-field multiphoton femtosecond photoassociation experiments, we find the yield of detected magnesium dimer molecules to be enhanced for positively chirped pulses and suppressed for negatively chirped pulses. Our ab initio model shows that control is achieved by purification combined with chirp-dependent Raman transitions. Experimental closed-loop phase optimization using a learning algorithm yields an improved pulse that utilizes vibrational coherent dynamics in addition to chirp-dependent Raman transitions. Our results show that coherent control of binary photoreactions is feasible even under thermal conditions.
AB - We demonstrate coherent control of bond making, a milestone on the way to coherent control of photoinduced bimolecular chemical reactions. In strong-field multiphoton femtosecond photoassociation experiments, we find the yield of detected magnesium dimer molecules to be enhanced for positively chirped pulses and suppressed for negatively chirped pulses. Our ab initio model shows that control is achieved by purification combined with chirp-dependent Raman transitions. Experimental closed-loop phase optimization using a learning algorithm yields an improved pulse that utilizes vibrational coherent dynamics in addition to chirp-dependent Raman transitions. Our results show that coherent control of binary photoreactions is feasible even under thermal conditions.
UR - http://www.scopus.com/inward/record.url?scp=84935855384&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.114.233003
DO - 10.1103/PhysRevLett.114.233003
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AN - SCOPUS:84935855384
SN - 0031-9007
VL - 114
JO - Physical Review Letters
JF - Physical Review Letters
IS - 23
M1 - 233003
ER -