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Gu B, Keefer D, Mukamel S. Wave Packet Control and Simulation Protocol for Entangled Two-Photon Absorption of Molecules. J Chem Theory Comput 2021; 18:406-414. [PMID: 34920666 DOI: 10.1021/acs.jctc.1c00949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Quantum light spectroscopy, providing novel molecular information nonaccessible by classical light, necessitates new computational tools when applied to complex molecular systems. We introduce two computational protocols for the molecular nuclear wave packet dynamics interacting with an entangled photon pair to produce an entangled two-photon absorption signal. The first involves summing over transition pathways in a temporal grid defined by two light-matter interaction times accompanied by the field correlation functions of quantum light. The signal is obtained by averaging over the two time distribution characteristics of the entangled photon state. The other protocol involves a Schmidt decomposition of the entangled light and requires summing over the Schmidt modes. We demonstrate how photon entanglement can be used to control and manipulate the two-photon excited nuclear wave packets in a displaced harmonic oscillator model.
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Affiliation(s)
- Bing Gu
- Department of Chemistry & Department of Physics and Astronomy, University of California Irvine, Irvine, California 92697, United States
| | - Daniel Keefer
- Department of Chemistry & Department of Physics and Astronomy, University of California Irvine, Irvine, California 92697, United States
| | - Shaul Mukamel
- Department of Chemistry & Department of Physics and Astronomy, University of California Irvine, Irvine, California 92697, United States
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Gu B, Keefer D, Aleotti F, Nenov A, Garavelli M, Mukamel S. Photoisomerization transition state manipulation by entangled two-photon absorption. Proc Natl Acad Sci U S A 2021; 118:e2116868118. [PMID: 34799455 PMCID: PMC8617409 DOI: 10.1073/pnas.2116868118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/15/2021] [Indexed: 11/18/2022] Open
Abstract
We demonstrate how two-photon excitation with quantum light can influence elementary photochemical events. The azobenzene trans → cis isomerization following entangled two-photon excitation is simulated using quantum nuclear wave packet dynamics. Photon entanglement modulates the nuclear wave packets by coherently controlling the transition pathways. The photochemical transition state during passage of the reactive conical intersection in azobenzene photoisomerization is strongly affected with a noticeable alteration of the product yield. Quantum entanglement thus provides a novel control knob for photochemical reactions. The distribution of the vibronic coherences during the conical intersection passage strongly depends on the shape of the initial wave packet created upon quantum light excitation. X-ray signals that can experimentally monitor this coherence are simulated.
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Affiliation(s)
- Bing Gu
- Department of Chemistry, University of California, Irvine, CA 92697
- Department of Physics & Astronomy, University of California, Irvine, CA 92697
| | - Daniel Keefer
- Department of Chemistry, University of California, Irvine, CA 92697
- Department of Physics & Astronomy, University of California, Irvine, CA 92697
| | - Flavia Aleotti
- Dipartimento di Chimica Industriale "Toso Montanari", Università degli studi di Bologna, 40136 Bologna, Italy
| | - Artur Nenov
- Dipartimento di Chimica Industriale "Toso Montanari", Università degli studi di Bologna, 40136 Bologna, Italy
| | - Marco Garavelli
- Dipartimento di Chimica Industriale "Toso Montanari", Università degli studi di Bologna, 40136 Bologna, Italy
| | - Shaul Mukamel
- Department of Chemistry, University of California, Irvine, CA 92697;
- Department of Physics & Astronomy, University of California, Irvine, CA 92697
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Gu B, Mukamel S. Manipulating Two-Photon-Absorption of Cavity Polaritons by Entangled Light. J Phys Chem Lett 2020; 11:8177-8182. [PMID: 32877607 DOI: 10.1021/acs.jpclett.0c02282] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We demonstrate that two-photon excitations to bipolariton states created by placing several molecules in an optical cavity can be manipulated by quantum light. Entangled photons can access classically dark bipolariton states by modifying the quantum interferences of two-photon transition pathways involving different single-polariton intermediate states and time-ordering of the two photon beams.
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Affiliation(s)
- Bing Gu
- Department of Chemistry and Department of Physics and Astronomy, University of California, Irvine, California 92697, United States
| | - Shaul Mukamel
- Department of Chemistry and Department of Physics and Astronomy, University of California, Irvine, California 92697, United States
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Lavigne C, Brumer P. Pulsed two-photon coherent control of channelrhodopsin-2 photocurrent in live brain cells. J Chem Phys 2020; 153:034303. [PMID: 32716190 DOI: 10.1063/5.0012642] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Channelrhodopsin-2 (ChR2) is an ion channel activated by the absorption of light. A recent experiment demonstrated that the current emanating from neurons in live brain cells expressing ChR2 can be controlled using two-photon phase control. Here, we propose an experimentally testable coherent control mechanism for this phenomenon. Significantly, we describe how femtosecond, quantum coherent processes arising from weak-field ultrafast excitation are responsible for the reported control of the millisecond classical dynamics of the neuronal current.
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Affiliation(s)
- Cyrille Lavigne
- Chemical Physics Theory Group, Department of Chemistry, and Center for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Paul Brumer
- Chemical Physics Theory Group, Department of Chemistry, and Center for Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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Nairat M, Konar A, Kaniecki M, Lozovoy VV, Dantus M. Investigating the role of human serum albumin protein pocket on the excited state dynamics of indocyanine green using shaped femtosecond laser pulses. Phys Chem Chem Phys 2015; 17:5872-7. [DOI: 10.1039/c4cp04984e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
When indocyanine green (ICG) is confined inside the pocket of human serum albumin its triplet state formation is mitigated and coherent vibrational motion becomes more observable.
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Affiliation(s)
- Muath Nairat
- Department of Chemistry
- Michigan State University
- East Lansing
- USA
| | | | - Marie Kaniecki
- Department of Chemistry
- Michigan State University
- East Lansing
- USA
| | | | - Marcos Dantus
- Department of Chemistry
- Michigan State University
- East Lansing
- USA
- Department of Physics and Astronomy
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Konar A, Lozovoy VV, Dantus M. Solvent Environment Revealed by Positively Chirped Pulses. J Phys Chem Lett 2014; 5:924-928. [PMID: 26274090 DOI: 10.1021/jz500291h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The spectroscopy of large organic molecules and biomolecules in solution has been investigated using various time-resolved and frequency-resolved techniques. Of particular interest is the early response of the molecule and the solvent, which is difficult to study due to the ambiguity in assigning and differentiating inter- and intramolecular contributions to the electronic and vibrational populations and coherence. Our measurements compare the yield of fluorescence and stimulated emission for two laser dyes IR144 and IR125 as a function of chirp. While negatively chirped pulses are insensitive to solvent viscosity, positively chirped pulses are found to be uniquely sensitive probes of solvent viscosity. The fluorescence maximum for IR125 is observed near transform-limited pulses; however, for IR144, it is observed for positively chirped pulses once the pulses have been stretched to hundreds of femtoseconds. We conclude that chirped pulse spectroscopy is a simple one-beam method that is sensitive to early solvation dynamics.
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Affiliation(s)
- Arkaprabha Konar
- †Department of Chemistry and ‡Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, United States
| | - Vadim V Lozovoy
- †Department of Chemistry and ‡Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, United States
| | - Marcos Dantus
- †Department of Chemistry and ‡Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, United States
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Konar A, Lozovoy VV, Dantus M. Solvation Stokes-Shift Dynamics Studied by Chirped Femtosecond Laser Pulses. J Phys Chem Lett 2012; 3:2458-2464. [PMID: 26292133 DOI: 10.1021/jz300761x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The early optical dynamic response, resulting population, and electronic coherence are investigated experimentally and modeled theoretically for IR144 in solution. The fluorescence and stimulated emission response are studied systematically as a function of chirp. The magnitude of the chirp effect on fluorescence and stimulated emission is found to depend quadratically on pulse energy, even where excitation probabilities range from 0.02 to 5%, in the so-called "linear excitation regime". Interestingly, the shape of the chirp dependence on fluorescence and stimulated emission is found to be independent of pulse energy. The chirp dependence reveals dynamics related to solvent rearrangement following excitation and also depends on electronic relaxation of the chromophore. The experimental results are successfully simulated using a four-level model in the presence of inhomogeneous broadening of the electronic transitions.
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Affiliation(s)
- Arkaprabha Konar
- †Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Vadim V Lozovoy
- †Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Marcos Dantus
- †Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
- ‡Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, United States
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Biggs JD, Cina JA. Studies of impulsive vibrational influence on ultrafast electronic excitation transfer. J Phys Chem A 2012; 116:1683-93. [PMID: 22236325 DOI: 10.1021/jp2094609] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We investigated electronic energy-transfer dynamics in three model dimers within which coherent intramonomer nuclear motion had been induced by impulsive Raman excitation using an optimized, electronically preresonant control pulse. Calculations of the donor-survival probability, the ultrafast pump-probe signal, and the pump-probe difference signal are presented for dithia-anthracenophane and homodimers of 2-difluoromethylanthracene and 2-trifluoromethylanthracene. Survival probabilities and signals, along with phase-space analyses, elucidated the mechanisms, extent, and spectroscopic manifestations of external vibrational or torsional control over electronic excitation transfer.
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Affiliation(s)
- Jason D Biggs
- Department of Chemistry and Oregon Center for Optics, University of Oregon, Eugene, Oregon 97403, USA
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Plenge J, Wirsing A, Raschpichler C, Meyer M, Rühl E. Chirped pulse multiphoton ionization of nitrogen: Control of selective rotational excitation in N2+(B Σ2u+). J Chem Phys 2009; 130:244313. [DOI: 10.1063/1.3158603] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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10
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Goswami T, Karthick Kumar SK, Dutta A, Goswami D. Control of laser induced molecular fragmentation of n-propyl benzene using chirped femtosecond laser pulses. Chem Phys 2009; 360:47-52. [PMID: 19696899 PMCID: PMC2722903 DOI: 10.1016/j.chemphys.2009.04.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2008] [Accepted: 04/16/2009] [Indexed: 10/30/2022]
Abstract
We present the effect of chirping a femtosecond laser pulse on the fragmentation of n-propyl benzene. An enhancement of an order of magnitude for the relative yields of C3H3+ and C5H5+ in the case of negatively chirped pulses and C6H5+ in the case of positively chirped pulses with respect to the transform-limited pulse indicates that in some fragmentation channel, coherence of the laser field plays an important role. For the relative yield of all other heavier fragment ions, resulting from the interaction of the intense laser field with the molecule, there is no such enhancement effect with the sign of chirp, within experimental errors. The importance of the laser phase is further reinforced through a direct comparison of the fragmentation results with the second harmonic of the chirped laser pulse with identical bandwidth.
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Affiliation(s)
- Tapas Goswami
- Department of Chemistry, Indian Institute of Technology Kanpur, UP 208016, India
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Tkaczyk ER, Tkaczyk AH, Mauring K, Ye JY, Baker JR, Norris TB. Control of Two-photon Fluorescence of Common Dyes and Conjugated Dyes. J Fluoresc 2008; 19:517-32. [DOI: 10.1007/s10895-008-0441-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2008] [Accepted: 11/03/2008] [Indexed: 10/21/2022]
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12
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Carroll EC, Florean AC, Bucksbaum PH, Spears KG, Sension RJ. Phase control of the competition between electronic transitions in a solvated laser dye. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.01.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Brixner T, Damrauer NH, Kiefer B, Gerber G. Liquid-phase adaptive femtosecond quantum control: Removing intrinsic intensity dependencies. J Chem Phys 2003. [DOI: 10.1063/1.1538239] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lozovoy VV, Pastirk I, Walowicz KA, Dantus M. Multiphoton intrapulse interference. II. Control of two- and three-photon laser induced fluorescence with shaped pulses. J Chem Phys 2003. [DOI: 10.1063/1.1531620] [Citation(s) in RCA: 172] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Ohtsuki Y, Sugawara M, Kono H, Fujimura Y. Quantum Control of Molecular Reaction Dynamics by Laser Pulses: Development of Theory and Its Application. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2001. [DOI: 10.1246/bcsj.74.1167] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Abstract
This review focuses on the study of the dynamics of isolated molecules and their control using coherent nonlinear spectroscopic methods. Emphasis is placed on topics such as bound-to-free excitation and the study of concerted elimination reactions, free-to-bound excitation and the study of bimolecular reactions, and bound-to-bound excitation and the study of intramolecular rovibrational dynamics and coherence relaxation. For each case the detailed time-resolved information reveals possible strategies to control the outcome. Experimental results are shown for each of the reactions discussed. The methods discussed include pump-probe and four-wave mixing processes such as transient grating and photon echo spectroscopy. Off-resonance transient-grating experiments are shown to be ideal for the study of ground state dynamics, molecular structure, and the molecular response to strong field excitation.
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Affiliation(s)
- M Dantus
- Department of Chemistry and Center for Fundamental Materials Research, Michigan State University, East Lansing, Michigan 48824, USA.
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18
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Hoki K, Ohtsuki Y, Kono H, Fujimura Y. Quantum Control of NaI Predissociation in Subpicosecond and Several-Picosecond Time Regimes. J Phys Chem A 1999. [DOI: 10.1021/jp990894d] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. Hoki
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Y. Ohtsuki
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - H. Kono
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Y. Fujimura
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
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Shen YC, Cina JA. What can short-pulse pump-probe spectroscopy tell us about Franck-Condon dynamics? J Chem Phys 1999. [DOI: 10.1063/1.478032] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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