optical time-resolved spectroscopy
Developments of time resolved XAFS spectroscopy techniques applications in homogeneous catalysis
... an optical fiber UV-Vis apparatus, both techniques can be applied ...dead time of ~3 ms (i.e. time before all solutions are mixed and arrived in the ...and optical fiber UV-Vis experiments on ...
216
TIME-RESOLVED EMISSION SPECTROSCOPY OF ATOMIC AND MOLECULAR SPECIES IN LASER-INDUCED PLASMA
... following optical breakdown in ultra-high-pure hydrogen and 9:1 mixtures of ultra-pure hydrogen and nitrogen gases, indicate spherical shell structures and isentropic expansion of the plasma kernel over and above ...
6
Time resolved infrared imaging and spectroscopy for engine diagnostics
... In this document, we compare the ability of conventional and high-frequency corona systems to ignite both stoichiometric, minimally diluted NG mixtures and lean, dilute NG mixtures in heavy-duty (HD) applications. The ...
16
Development of a Time-Resolved Optical Tomography System for Neonatal Brain Imaging
... NIR spectroscopy, also has a longstanding interest in optical ...8-channel time-resolved TCSPC instrument reported by [Ntziachristos 1998 and Ntziachristos ...spatially resolved NIR ...
243
Spatially resolved optical spectroscopy of the Herbig Ae/Vega like binary star HD 35187
... One of the objectives of the present work was to search for absorption lines arising in the circumstellar disc presumed to be responsible for the infrared excess of HD 35187 (Sec- tion 1). As is well known, strong, ...
11
Capturing Protein Dynamics with Time Resolved Luminescence Spectroscopy
... with optical fibers in a linear array, allowing for simultaneous data collection at twenty-five different points along the mixing ...folding time resolution was 200 µ s, calculated using a fiber-fiber ...
147
Ramifications of optical pumping on the interpretation of time resolved photoemission experiments on graphene
... photoelectrons create a vacuum space-charge effect that may lead to a shift of the electrons’ kinetic energies and a severe broadening in energy that can easily exceed the resolution set by the light source and the ...
11
Resolving the temporal evolution of line broadening in single quantum emitters
... a time resolved Fourier spectroscopy technique - Photon Correlation Fourier Spectroscopy (PCFS) [18] - to study the optical emission dynamics of GaAs and In(Ga)As quantum dots under ...
18
Phase-resolved optical emission spectroscopy of a neutralizer-free gridded ion thruster
... phase-resolved optical emission is shown in ...the time- averaged optical emission is observed for 90 < z < 97 ...the time-varying optical emission increases for 97 < z ...
10
Nanoscale momentum-resolved vibrational spectroscopy
... acquisition time, in combination with a widening due to electron-atom Compton scattering (40) and, to a lesser extent, to electron optical aber- rations in the post-specimen optics when using post-specimen ...
6
Laser-plasma and self-absorption measurements with applications to analysis of atomic and molecular stellar astrophysics spectra
... The experimental arrangement for laboratory measurements of laser-induced plasma [6] includes a Q-switched Nd:YAG laser device typically generating 6 ns laser pulses with an energy of 150 mJ per pulse at the fundamental ...
16
Calculating singlet excited states: comparison with fast time resolved infrared spectroscopy of coumarins
... FTIR spectra were measured on a Nicolet Avatar 380 spectrometer at 2 cm -1 resolution. The ultrafast TRIR experiments were conducted on the ULTRA system at the STFC Rutherford Appleton Laboratories, and the apparatus is ...
24
Revealing the photophysics of gold-nanobeacons via time-resolved fluorescence spectroscopy
... data-collection time of 60 ...recovering time-evolution fluorescence intensity and amplitude-weighted lifetime ...the time evolution of the amplitude-weighted lifetime matches well with the ...
6
Exciton dynamics in solid state green fluorescent protein
... and time-binned) reveal a pronounced reduction of exci- ton lifetimes (when going from the solved phase to the solid state) due to concentration-induced ...
5
A Theoretical Study of Ultrafast Quasi-Particle Relaxation Time in Normal Metals
... erature for very large value of Kee as Kee=7000Kep. Calculations were performed again with two models TTM and coupled Boltzmann equation. We observed that an electron system has a thermal distribution in the whole T ...
9
Toward a Removal of Temperature Dependencies from Abundance Determinations: NGC 628
... spatially resolved spectroscopy from Herschel PACS, Spitzer IRS, and PMAS, we derive the gas-phase oxy- gen abundance of several H ii regions in NGC 628 using both optical and far-IR fine-structure ...
9
Characterization of the Dynamics of Beta Sheet Formation by Time-Resolved Infrared Spectroscopy and Computational Modeling
... using time-resolved infrared spectroscopy in the amide I′ ...relaxation time is clearly observed along the series for T-jumps to the same final ...(response time = 28 ns, k = ...
159
A High Diffusive Model for Nanomaterials
... In summary, we have evaluated the correlation func- tions for systems for which the Drude–Lorentz model is valid through the formulation of a new Drude–Lorentz- like model [8,9], in which such functions can be obtained ...
5
Estimation of temperature and electron density in stainless steel plasma using laser induced breakdown spectroscopy
... The advantages of this system are that it can be used for elemental detection in samples in any states, i.e., solid, liquid or gas. The other advantages of this system are portable and easy to use. The preparation for ...
5
C-13 Magic angle spinning NMR evidence for a 15, 15'-Z configuration of the sheroidene chromophore in the Rhodobacter Sphaeroides reaction center; synthesis of 13C- and 2H-labelled spheroidenes
... Finally, time-resolved Raman spectroscopy of RCs reconstituted with isotope- labelled spheroidenes may give information about the structure-function relation of the caro[r] ...
8