Frequency and time resolved coherent Stokes Raman scattering in CS2 using incoherent light

Stimson, Michael J.; Ulness, Darin J.; Albrecht, A. C.

doi:10.1016/s0009-2614(96)01182-7

Cited by 36 publications

(37 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although noisy light offers some advantages, it is not as generally useful as its shortpulse counterpart. One exception is coherent anti-Stokes Raman scattering spectroscopy (I (2) CARS), where the noisy-light version has proven to be a very useful tool that is still being used to investigate a variety of systems [87,[102][103][104][105][106][107][108][109][110][111][112][113][114][115][116]. Noisy sources have found occasional uses and advantages in other spectral regimes as well [117][118][119][120][121].…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Electronic Spectroscopy Using Incoherent Light: Theoretical Analysis

Turner

Howey²,

Sutor³

et al. 2012

J. Phys. Chem. A

Self Cite

View full text Add to dashboard Cite

Electronic energy transfer in photosynthesis occurs over a range of time scales and under a variety of intermolecular coupling conditions. Recent work has shown that electronic coupling between chromophores can lead to coherent oscillations in two-dimensional electronic spectroscopy measurements of pigment-protein complexes measured with femtosecond laser pulses. A persistent issue in the field is to reconcile the results of measurements performed using femtosecond laser pulses with physiological illumination conditions. Noisy-light spectroscopy can begin to address this question. In this work we present the theoretical analysis of incoherent two-dimensional electronic spectroscopy, I(4) 2D ES. Simulations reveal diagonal peaks, cross peaks, and coherent oscillations similar to those observed in femtosecond two-dimensional electronic spectroscopy experiments. The results also expose fundamental differences between the femtosecond-pulse and noisy-light techniques; the differences lead to new challenges and new opportunities.

show abstract

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Electronic Spectroscopy Using Incoherent Light: Theoretical Analysis

Turner

Howey²,

Sutor³

et al. 2012

J. Phys. Chem. A

Self Cite

View full text Add to dashboard Cite

show abstract

“…Raman scattering experiments [8][9][10], and two-photon absorption with quantum-correlated noise [11]. However, it has not been recognized that noisy pulse shapes can improve the temporal resolution in pump-probe spectroscopy for directly measuring quantum dynamics, such as molecular or electronic wave-packet motion.…”

mentioning

confidence: 99%

Noisy Optical Pulses Enhance the Temporal Resolution of Pump-Probe Spectroscopy

et al. 2012

View full text Add to dashboard Cite

Time-resolved measurements of quantum dynamics are based on the availability of controlled events (e.g. pump and probe pulses) that are shorter in duration than the typical evolution time scale of the dynamical processes to be observed. Here we introduce the concept of noise-enhanced pump-probe spectroscopy, allowing the measurement of dynamics significantly shorter than the average pulse duration by exploiting randomly varying, partially coherent light fields consisting of bunched colored noise. It is shown that statistically fluctuating fields can be superior by more than a factor of 10 to frequency-stabilized fields, with important implications for time-resolved pump-probe experiments at x-ray free-electron lasers (FELs) and, in general, for measurements at the frontiers of temporal resolution (e.g. attosecond spectroscopy). As an example application, the concept is used to explain the recent experimental observation of vibrational wave-packet motion in a deuterium molecular ion on time scales shorter than the average pulse duration.

show abstract

“…However, it is also shown that some of the laser applications do not necessarily relate to coherence. Recently, it is found that many emerging applications which highlight other laser properties, like high directionality, high intensity and monochromaticity, could be disturbed by laser's coherence property [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…(2) In some experiments [4,8], incoherent laser condition is realized by employing different wavelength, multi-wavelength or broadband lasers. (3) Let the laser pass a two-level phase plate, in which the phase-shift is either 0 or p, to reduce the coherency of laser [1].…”

Section: Introductionmentioning

confidence: 99%