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Ultrafast dynamics

Ultrafast dynamics of phase transition in Chalcogenide Phase-Change Materials

Ultrafast dynamics of phase transition in Chalcogenide Phase-Change Materials

... Ultrafast dynamics of phase transition in Chalcogenide Phase-Change Materials P. Martinez 1 , J. Gaudin 1 , I. Papagiannouli 1 , V. Blanchet 1 , D. Descamps 1 , C. Fourment 1 , S. Petit 1 , J. Y. Raty 2,3 ...

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UV-photoexcitation and ultrafast dynamics of HCFC-132b (CF 2 ClCH 2 Cl)

UV-photoexcitation and ultrafast dynamics of HCFC-132b (CF 2 ClCH 2 Cl)

... nonadiabatic dynamics simulations were carried out to understand the ultrafast decay of the excited states of HCFC-132b in the gas ...phase. Dynamics simulations were performed with the surface ...

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Three-dimensional view of ultrafast dynamics in photoexcited bacteriorhodopsin

Three-dimensional view of ultrafast dynamics in photoexcited bacteriorhodopsin

... timescale alter the retinal excited state dynamics (Supplementary Fig. 1f) without significant influence on the 13-cis isomer formation time. The insight gained from the spectroscopic experiments cannot be applied ...

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Unraveling Ultrafast Dynamics of the Photoswitchable Bridged Dithienylethenes Under Structural Constraints

Unraveling Ultrafast Dynamics of the Photoswitchable Bridged Dithienylethenes Under Structural Constraints

... state dynamics of constrained photochromic benzodithienylethenes were adressed by considering the bridging with polyether chains (from x=4 to 6 units) at the ortho and meta positions of the aryl group, noticed ...

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Ultrafast dynamics of o-nitrophenol: An experimental and theoretical study

Ultrafast dynamics of o-nitrophenol: An experimental and theoretical study

... formed HONO group and, thus, by a twist of the acceptor group. The latter effect can lead to ultrafast IC with S 0 as also observed in earlier studies. 63 , 64 4.2. Relaxation via Intersystem Crossing. Considering ...

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Three-dimensional view of ultrafast dynamics in photoexcited bacteriorhodopsin

Three-dimensional view of ultrafast dynamics in photoexcited bacteriorhodopsin

... G.N.K., R.B.D., T.D. and I.S. designed the experiment; R.S. provided the bR samples; G.N.K. purified bR; G.N.K. and R.L.S. performed the retinal HPLC analysis; G.N.K. and R.G. crystallized bR. G.N.K., M.L.G., D.E. and ...

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Ultrafast dynamics of hot carriers in a quasi–two-dimensional electron gas on InSe

Ultrafast dynamics of hot carriers in a quasi–two-dimensional electron gas on InSe

... We suddenly inject hot carriers in the conduction band by photoexciting the sample via an ultrafast laser pulse centered at 1.55 eV. Since InSe has a direct electronic gap of ∼1.28 eV, the excited carriers attain ...

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Ultrafast and Distinct Spin Dynamics in Magnetic Alloys

Ultrafast and Distinct Spin Dynamics in Magnetic Alloys

... 4. Ultrafast Dynamics of the Elemental Magnetic Moments from Time-Resolved XMCD Experiments To compare these theoretical predictions and simulations with experiments, we measured the transient ...

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Ultrafast carrier dynamics in single-wall carbon nanotubes

Ultrafast carrier dynamics in single-wall carbon nanotubes

... SWCNTs are obtained by laser ablation of a doped graphite target and purified by ultrasonic and chemical treatment [15]. The solution containing the nanotubes is evaporated on a glass substrate. The average diam- eter is ...

6

Ultrafast non-adiabatic dynamics of methyl substituted ethylenes : the π3s Rydberg state

Ultrafast non-adiabatic dynamics of methyl substituted ethylenes : the π3s Rydberg state

... state dynamics in ethylene and methyl substituted ethylenes have been mainly focused on the V ...state dynamics, the subject of the present study. The dynamics of electronically excited ethylene and ...

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Ultrafast geometrical rearrangement of solid neon upon photoexcitation of a NO impurity : a quantum dynamics study

Ultrafast geometrical rearrangement of solid neon upon photoexcitation of a NO impurity : a quantum dynamics study

... molecular dynamics simulations of photo-induced structural dynamics in nitric oxide (NO) doped solid neon ...The ultrafast relaxation dynamics is studied using a purely quantum mechanical ...

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Mapping the ultrafast vibrational dynamics of all- trans and 13- cis retinal isomerization in Anabaena Sensory Rhodopsin

Mapping the ultrafast vibrational dynamics of all- trans and 13- cis retinal isomerization in Anabaena Sensory Rhodopsin

... Kandori b,c and Tiago Buckup* , a Discrepancies in the isomerization dynamics and quantum yields of the trans and cis retinal protonated Schiff base is a well-known issue in the context of retinal photochemistry. ...

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Coherent Exciton Dynamics in Supramolecular Light-Harvesting Nanotubes Revealed by Ultrafast Quantum Process Tomography

Coherent Exciton Dynamics in Supramolecular Light-Harvesting Nanotubes Revealed by Ultrafast Quantum Process Tomography

... coherent dynamics in natural light- harvesting photosynthetic complexes via two-dimensional spectroscopy ...microscopic dynamics in the material. The in- terplay between excitonic dynamics and ...

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Ultrafast carbon monoxide photolysis and heme spin-crossover in myoglobin via nonadiabatic quantum dynamics

Ultrafast carbon monoxide photolysis and heme spin-crossover in myoglobin via nonadiabatic quantum dynamics

... band. A 3 MC → 5 MC transfer, however, is not observed, due to the fact that the 3 MC and 5 MC states do not cross in an accessible region. Our results show rather that the wavepacket remains trapped in the 5 MLCT band. ...

9

Ultrafast double-quantum NMR spectroscopy

Ultrafast double-quantum NMR spectroscopy

... in ultrafast spectra is a complex and ongoing ...for ultrafast double-quantum NMR ...of ultrafast NMR, such as the quantitative analysis of complex mixtures, which can have a large dynamic range of ...

5

Ultrafast strain engineering and coherent structural dynamics from resonantly driven optical phonons in LaAlO3

Ultrafast strain engineering and coherent structural dynamics from resonantly driven optical phonons in LaAlO3

... structural dynamics in LaAlO 3 induced by ultrashort excitation of a selected IR-active phonon ...magnetic dynamics, and sonic lattice waves observed in recent ...lattice dynamics, coherent lattice ...

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Indirect excitation of ultrafast demagnetization

Indirect excitation of ultrafast demagnetization

... the ultrafast demagnetization phenomenon 1 : a drastic drop of the magnetization occurring on a sub-picosecond time scale, which is followed by a partial magnetization recovery taking place with a slower time ...

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Ultrafast quantum dynamics of doped superfluid helium nanodroplets

Ultrafast quantum dynamics of doped superfluid helium nanodroplets

... The experimental setup has been previously described. 14 , 32 In brief, He droplets with an average diameter of 10 nm are created by continuous supersonic expansion and doped by one Rb atom on average. 14 , 32 The laser ...

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Development of an ultrafast electron source based on a cold-field emission gun for ultrafast coherent TEM

Development of an ultrafast electron source based on a cold-field emission gun for ultrafast coherent TEM

... an ultrafast electron source based on a CFEG architecture with the laser focusing optics outside the TEM column will lead to a large emission region and deteriorate its ...laser-driven ultrafast mode for ...

7

Ultrafast diffusion-ordered NMR analysis of mixtures

Ultrafast diffusion-ordered NMR analysis of mixtures

... as ultrafast NMR and hyperpolarisation should mark a significant progress for complex mixtures analysis and this particular coupling has not been fully investigated ...

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