Observation of a Long‐lived Electronic Coherence Modulated by Vibrational Dynamics in Molecular Nd3+‐Complexes at Room Temperature

• Published in: Chemphyschem Vol. 24; no. 12; pp. e202300001 - n/a
• Main Authors: Ghosh, Jayanta, Gheibi, Mirali, Kalas, Tillmann, Sarpe, Cristian, Zielinski, Bastian, Ciobotea, Ramela, Burghard Morscher, Christoph, Koehne, Ingo, Pietschnig, Rudolf, Senftleben, Arne, Baumert, Thomas, Braun, Hendrike
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 15.06.2023
• Subjects: electronic coherence; femtochemistry; Femtosecond pulsed lasers; Femtosecond pulses; fluorescence; lanthanides; Quantum phenomena; Room temperature; Wave packets
• ISSN: 1439-4235; 1439-7641
• DOI: 10.1002/cphc.202300001

Temporally delayed, phase‐locked coherent pairs of near IR femtosecond laser pulses were employed to study electronic coherences in molecular Nd3+‐complexes at room temperature. Dissolved and solid complexes were studied under a confocal microscope set‐up with fluorescence detection. The observed electronic coherence on a few hundred femtoseconds time scale is modulated by additional coherent wave packet dynamics, which we attribute mainly to be vibrational in nature. In future, the complexes may serve as prototypes for possible applications in quantum information technology. Phase‐locked coherent pairs of pulses are used to investigate the electronic coherence in Neodymium molecular complexes in condensed phase at room temperature. The lifetime of the created electronic coherence is estimated by measuring the fluorescence modulation as a function of the delay between the two near IR pulses.