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McAnally MO, Guo Y, Balakrishnan G, Schatz GC, Van Duyne RP. Understanding the vibrational mode-specific polarization effects in femtosecond Raman-induced Kerr-effect spectroscopy. OPTICS LETTERS 2016; 41:5357-5360. [PMID: 27842131 DOI: 10.1364/ol.41.005357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Optically heterodyne-detected femtosecond Raman-induced Kerr-effect spectroscopy (OHD-FRIKES) was observed in neat cyclohexane. In this Letter, an examination of the effect of the Raman pump ellipticity on the multiplex OHD-FRIKES spectra is discussed. The Raman pump ellipticity scanned OHD-FRIKES results reproduce anomalous observables from previous OHD-FRIKES experiments and suggest new methods of tracking transient vibrational mode polarization in complex systems.
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Dremetsika E, Dlubak B, Gorza SP, Ciret C, Martin MB, Hofmann S, Seneor P, Dolfi D, Massar S, Emplit P, Kockaert P. Measuring the nonlinear refractive index of graphene using the optical Kerr effect method. OPTICS LETTERS 2016; 41:3281-4. [PMID: 27420515 DOI: 10.1364/ol.41.003281] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
By means of the ultrafast optical Kerr effect method coupled to optical heterodyne detection (OHD-OKE), we characterize the third-order nonlinear response of graphene and compare it to experimental values obtained by the Z-scan method on the same samples. From these measurements, we estimate a negative nonlinear refractive index for monolayer graphene, n2=-1.1×10-13 m2/W. This is in contradiction to previously reported values, which leads us to compare our experimental measurements obtained by the OHD-OKE and the Z-scan method with theoretical and experimental values found in the literature and to discuss the discrepancies, taking into account parameters such as doping.
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Li YC, Kuo YT, Huang PY, Yang SS, Lee CI, Wei TH. Thermal lensing effect of CS2 studied with femtosecond laser pulses. Phys Chem Chem Phys 2015; 17:24738-47. [PMID: 26246122 DOI: 10.1039/c5cp01796c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
By chopping 820 nm 18 femtosecond (fs)-laser pulses, continuously generated by a self-mode locked Ti:Al2O3 laser at 82 MHz, into trains with both train-width and train-to-train separation considerably longer than the thermal diffusivity time constant τth of CS2, we conducted Z-scan measurements on it at various times relative to the leading pulse of each train (T's). As a result, we observed negative nonlinear refraction strengthening with T within τth and gradually stabilizing with T exceeding τth. We quantitatively explain the experimental results in terms of the thermal lensing effect. In particular, we attribute the heat generation to non-radiative relaxation of libration excited by individual 18 fs-pulses via stimulated Raman scattering. In contrast to the commonly held view of multi-photon excitation, we propose and verify a new heat-generating mechanism for the thermal lensing effect in CS2.
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Affiliation(s)
- Yi-Ci Li
- Department of Physics, National Chung Cheng University, Min-Hsiung, Chia-Yi 621, Taiwan, Republic of China.
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Polok K, Gadomski W, Ratajska-Gadomska B. Femtosecond optical Kerr effect setup with signal "live view" for measurements in the solid, liquid, and gas phases. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:103109. [PMID: 26520942 DOI: 10.1063/1.4932531] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present the experimental setup constructed in our laboratory for measurement of the femtosecond optical Kerr effect. The setup allows measurements with high temporal resolution and acquisition speed. The high signal to noise ratio is obtained with use of a homemade balanced detector. Due to the high acquisition speed and good signal to noise ratio, it is possible to have a "live view" of the signal and to easily tune the sample position and orientation before the measurement. We show the example results obtained in the solid, liquid, and the gas phases and we use them in order to check on the precision of our setup. As the samples we have used a YAG crystal, liquid acetone, and atmospheric air. In the latter two cases, a good agreement with the literature data has been found. The measurements in the gas phase confirm that our setup, although utilizing low energy pulses from the sapphire oscillator, is able to acquire high quality rotational signal in a low density sample.
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Affiliation(s)
- K Polok
- Laboratory of Physicochemistry of Dielectrics and Magnetics, Department of Chemistry, University of Warsaw, ul. Żwirki i Wigury 101, 01-089 Warsaw, Poland
| | - W Gadomski
- Laboratory of Physicochemistry of Dielectrics and Magnetics, Department of Chemistry, University of Warsaw, ul. Żwirki i Wigury 101, 01-089 Warsaw, Poland
| | - B Ratajska-Gadomska
- Laboratory of Physicochemistry of Dielectrics and Magnetics, Department of Chemistry, University of Warsaw, ul. Żwirki i Wigury 101, 01-089 Warsaw, Poland
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Balakrishnan G, Soldatova A, Reid PJ, Spiro TG. Ultrafast charge transfer in nickel phthalocyanine probed by femtosecond Raman-induced Kerr effect spectroscopy. J Am Chem Soc 2014; 136:8746-54. [PMID: 24841906 PMCID: PMC4136751 DOI: 10.1021/ja503541v] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Indexed: 12/19/2022]
Abstract
The recently developed technique of femtosecond stimulated Raman spectroscopy, and its variant, femtosecond Raman-induced Kerr effect spectroscopy (FRIKES), offer access to ultrafast excited-state dynamics via structurally specific vibrational spectra. We have used FRIKES to study the photoexcitation dynamics of nickel(II) phthalocyanine with eight butoxy substituents, NiPc(OBu)8. NiPc(OBu)8 is reported to have a relatively long-lived ligand-to-metal charge-transfer (LMCT) state, an essential characteristic for efficient electron transfer in photocatalysis. Following photoexcitation, vibrational transitions in the FRIKES spectra, assignable to phthalocyanine ring modes, evolve on the femtosecond to picosecond time scales. Correlation of ring core size with the frequency of the ν10 (asymmetric C-N stretching) mode confirms the identity of the LMCT state, which has a ∼500 ps lifetime, as well as that of a precursor d-d excited state. An even earlier (∼0.2 ps) transient is observed and tentatively assigned to a higher-lying Jahn-Teller-active LMCT state. This study illustrates the power of FRIKES spectroscopy in elucidating ultrafast molecular dynamics.
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Affiliation(s)
- Gurusamy Balakrishnan
- Department of Chemistry, University
of Washington, Seattle, Washington 98195, United States
| | - Alexandra
V. Soldatova
- Department of Chemistry, University
of Washington, Seattle, Washington 98195, United States
| | - Philip J. Reid
- Department of Chemistry, University
of Washington, Seattle, Washington 98195, United States
| | - Thomas G. Spiro
- Department of Chemistry, University
of Washington, Seattle, Washington 98195, United States
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Shirota H, Fujisawa T, Fukazawa H, Nishikawa K. Ultrafast Dynamics in Aprotic Molecular Liquids: A Femtosecond Raman-Induced Kerr Effect Spectroscopic Study. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2009. [DOI: 10.1246/bcsj.82.1347] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Wilson JW, Schlup P, Bartels RA. Synthetic temporal aperture coherent molecular phase spectroscopy. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.08.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Affiliation(s)
- Minhaeng Cho
- Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University, Seoul 136-701, Korea.
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Tang JL, Lin JY, Li WD, Hsu CC, Wei TH, Huang * TH. Vibrational quantum interference in Raman-induced Kerr effect: momentum conservation. Mol Phys 2004. [DOI: 10.1080/00268970412331284271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Loughnane BJ, Scodinu A, Farrer RA, Fourkas JT, Mohanty U. Exponential intermolecular dynamics in optical Kerr effect spectroscopy of small-molecule liquids. J Chem Phys 1999. [DOI: 10.1063/1.479544] [Citation(s) in RCA: 122] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Femtosecond Raman-induced polarization spectroscopy studies of rotational coherence in O2, N2 and CO2. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)87192-6] [Citation(s) in RCA: 85] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Fain B, Lin SH, Khidekel V. Limitations of pump-probe femtosecond time-resolved experiments: Time-dependent absorption and dispersion line shapes. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1993; 47:3222-3239. [PMID: 9909301 DOI: 10.1103/physreva.47.3222] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Hayashi M, Fujimura Y, Okamoto H, Yoshihara K. Origin of subpicosecond decay components revealed in time-profiles of coherent anti-Stokes Raman scattering from neat benzene. Chem Phys Lett 1992. [DOI: 10.1016/0009-2614(92)85926-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Huang TH. Intramolecular vibrational activity and quantum beats in the Raman-induced optical Kerr effect of liquids under impulsive electric exciations. Chem Phys 1992. [DOI: 10.1016/0301-0104(92)87129-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Alden R, Lin S, Xiao W, Fain B, Islampour R. Theory of femtosecond time-resolved infrared absorption spectroscopy with application to ligand dissociation in haemoglobin. Mol Phys 1992. [DOI: 10.1080/00268979200101051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Observation of low-frequency Raman modes in several halogenated methanes by the optical Kerr effect. Chem Phys Lett 1992. [DOI: 10.1016/0009-2614(92)85403-w] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Hattori T, Kobayashi T. Ultrafast optical Kerr dynamics studied with incoherent light. J Chem Phys 1991. [DOI: 10.1063/1.459756] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Pollard W, Fragnito H, Bigot JY, Shank C, Mathies R. Quantum-mechanical theory for 6 fs dynamic absorption spectroscopy and its application to nile blue. Chem Phys Lett 1990. [DOI: 10.1016/0009-2614(90)85603-a] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Pollard WT, Lee S, Mathies RA. Wave packet theory of dynamic absorption spectra in femtosecond pump–probe experiments. J Chem Phys 1990. [DOI: 10.1063/1.457815] [Citation(s) in RCA: 255] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dübal H, Ha T, Lewerenz M, Quack M. Vibrational spectrum, dipole moment function, and potential energy surface of the CH chromophore in CHX3 molecules. J Chem Phys 1989. [DOI: 10.1063/1.457338] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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