Broadband two-dimensional electronic spectroscopy in an actively phase stabilized pump-probe configuration
Weida Zhu,Rui Wang,Chunfeng Zhang,Guodong Wang,Yunlong Liu,Wei Zhao,Xingcan Dai,Xiaoyong Wang,Giulio Cerullo,Steven T. Cundiff,Min Xiao +10 more
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TLDR
A novel configuration for two-dimensional electronic spectroscopy (2DES) that combines the partially collinear pump-probe geometry with active phase locking is introduced and is demonstrated on a solution sample of CdSe/ZnS nanocrystals by employing two non-collinear optical parametric amplifiers as the pump and probe sources.Abstract:
We introduce a novel configuration for two-dimensional electronic spectroscopy (2DES) that combines the partially collinear pump-probe geometry with active phase locking. We demonstrate the method on a solution sample of CdSe/ZnS nanocrystals by employing two non-collinear optical parametric amplifiers as the pump and probe sources. The two collinear pump pulse replicas are created using a Mach-Zehnder interferometer phase stabilized by active feedback electronics. Taking the advantage of separated paths of the two pump pulses in the interferometer, we improve the signal-to-noise ratio with double modulation of the individual pump beams. In addition, a quartz wedge pair manipulates the phase difference between the two pump pulses, enabling the recovery of the rephasing and non-rephasing signals. Our setup integrates many advantages of available 2DES techniques with robust phase stabilization, ultrafast time resolution, two-color operation, long delay scan, individual polarization manipulation and the ease of implementation.read more
Citations
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Recent advances in multidimensional ultrafast spectroscopy
TL;DR: This review article summarizes the key technological advances that have permitted these recent advances, and the insights gained from new multidimensional spectroscopic probes.
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Optical Gain from Biexcitons in CsPbBr3 Nanocrystals Revealed by Two-dimensional Electronic Spectroscopy.
Wei Zhao,Wei Zhao,Zhengyuan Qin,Chunfeng Zhang,Guodong Wang,Xinyu Huang,Bin Li,Xingcan Dai,Min Xiao,Min Xiao +9 more
TL;DR: Two-dimensional electronic spectroscopy is used to resonantly probe the interplay between near-band-edge transitions during the buildup of optical gain in CsPbBr3 NCs and finds compelling evidence to conclude that optical gain is generated through stimulated emission from strongly interacting biexcitons.
Journal ArticleDOI
Coherent Two-Dimensional and Broadband Electronic Spectroscopies
TL;DR: In this paper , the authors provide a detailed theoretical framework of coherent broadband and two-dimensional electronic spectroscopy (2DES) and discuss a selection of experimental approaches and considerations of 2DES along with best practices for data processing and analysis.
Journal ArticleDOI
Inhomogeneous Biexciton Binding in Perovskite Semiconductor Nanocrystals Measured with Two-Dimensional Spectroscopy.
TL;DR: This work uses polarization-dependent two-dimensional electronic spectroscopy to quantify the excitation energy-dependent biexciton binding energy at cryogenic temperatures and finds the spectral line width for the exciton-biexciton transition is much broader than that for the ground state to exciton transition, suggesting weakly correlated broadening between these transitions.
Journal ArticleDOI
Two-dimensional electronic spectroscopy of anharmonic molecular potentials.
TL;DR: It is found that the zero-phonon line shape is essentially transferred to the diagonal in 2DES spectra, and that anharmonicities break a horizontal mirror-symmetry in the infinite waiting time limit.
References
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TL;DR: Observations provide compelling evidence for quantum-coherent sharing of electronic excitation across the 5-nm-wide proteins under biologically relevant conditions, suggesting that distant molecules within the photosynthetic proteins are ‘wired’ together by quantum coherence for more efficient light-harvesting in cryptophyte marine algae.
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Gregory D. Scholes,Graham R. Fleming,Graham R. Fleming,Alexandra Olaya-Castro,Rienk van Grondelle +4 more
TL;DR: The principles learned from studies of various natural antenna complexes are described and how to elucidate strategies for designing light-harvesting systems are suggested to be used for solar fuel production, to direct and regulate excitation energy flow using molecular organizations that facilitate feedback and control, or to transfer excitons over long distances.
Journal ArticleDOI
Two-dimensional spectroscopy of electronic couplings in photosynthesis
Tobias Brixner,Tobias Brixner,Jens Stenger,Jens Stenger,Harsha M. Vaswani,Harsha M. Vaswani,Minhaeng Cho,Robert E. Blankenship,Graham R. Fleming +8 more
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