scholarly journals Investigation of excitation dynamics in HfO2 and SiO2 monolayers using subpicosecond pump-and-probe damage testing (Withdrawal Notice)

2020 ◽  
Author(s):  
Kyle R. P. Kafka ◽  
Brittany N. Hoffman ◽  
Alexei A. Kozlov ◽  
Stavros G. Demos
Keyword(s):  
Pump And Probe ◽  
Excitation Dynamics

Two-color studies of CH3Br excitation dynamics with MPI and slice imaging

2019 ◽  
Vol 21 (20) ◽  
pp. 10391-10401 ◽  
Author(s):  
Arnar Hafliðason ◽  
Pavle Glodic ◽  
Greta Koumarianou ◽  
Peter C. Samartzis ◽  
Ágúst Kvaran
Keyword(s):  
Multiphoton Ionization ◽  
Pump And Probe ◽  
Slice Imaging ◽  
Fragmentation Processes ◽  
Excitation Dynamics

Multiphoton-fragmentation processes for CH3Br determined by two-color, pump and probe experiments with mass-resolved-multiphoton-ionization (MR-MPI) and slice imaging.

Simulation of multiwavelength conditions in laser picosecond ultrasonics

SIMULATION ◽  
2021 ◽  
pp. 003754972199645
Author(s):  
Philippe Babilotte
Keyword(s):  
Numerical Simulations ◽  
Acoustic Signal ◽  
Acoustic Waves ◽  
Bulk Material ◽  
Deformation Field ◽  
Optical Pump ◽  
Pump And Probe ◽  
Oriented Object ◽  
Numerical Approaches ◽  
Picosecond Ultrasonics

Complete numerical simulations are given under SciLab® and MATLAB® coding environments, concerning propagative acoustic wavefronts, for laser picosecond ultrasonics under multiwavelength conditions. Simulations of the deformation field and its propagation into bulk material are given under different wavelength configurations for optical pump and probe beams, which are used to generate and to detect the acoustic signal. Complete insights concerning the dynamics of the acoustic waves are given, considering the absence of carrier diffusions into the material. Several numerical approaches are proposed concerning both the functions introduced to simulate the wavefront ( Heaviside or error) and the coding approach (linear/vectorized/ Oriented Object Programming), under the pure thermo-elastic approach.

scholarly journals Comparative study of all-optical INVERTER and BUFFER gates using MZI structure

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Pallavi Singh ◽  
Ashutosh Kumar Singh ◽  
Vanya Arun ◽  
Devendra K Tripathi
Keyword(s):  
Extinction Ratio ◽  
Low Complexity ◽  
Optical Amplifier ◽  
Destructive Interference ◽  
Eye Diagram ◽  
Pump And Probe ◽  
All Optical ◽  
High Scalability ◽  
Comparative Results ◽  
Optical Gates

AbstractIn the paper, one input optical gates i.e., INVERTER and BUFFER have been designed using some basic assumption to analyze with the help of Semi-conductor Optical Amplifier based Mach–Zehnder Interferometer structure. The results are optimized by iterative process. The proposed design of optical gates presents low complexity, high scalability and more feasible to evaluate through digital Boolean analyzation. The digital Boolean analyzation is analyzed by some basic Boolean rules and assumptions which makes the design more digital so that it can be compatible for more than one input optical gates also. Optical Gate is designed to get constructive and destructive interference for pump and probe as they are injected into SOA simultaneously. The phase modulation is converted into intensity modulation which gives a Boolean result. The paper is optimized by Eye diagram, Q factor, wavelength spectrum and frequency chirp for both the gates. The comparative results of extinction ratio for both the gates have also been discussed. The design is supported by theoretical analysis, simulation tool (Optsim) and Boolean explanation. The proposed designs are constructed with same pattern which supports the same Boolean analysis.

Theoretical studies of excitation dynamics in a peridinin-chlorophyll-protein coupled to a metallic nanoparticle

Open Physics ◽  
2011 ◽  
Vol 9 (2) ◽  
Author(s):  
Mikolaj Schmidt ◽  
Sebastian Mackowski
Keyword(s):  
Energy Transfer ◽  
Metallic Surface ◽  
Energy Transfer Rate ◽  
Metallic Nanoparticle ◽  
Light Harvesting Complex ◽  
Radiative Processes ◽  
Förster Energy Transfer ◽  
Chlorophyll Protein ◽  
Induced Changes ◽  
Excitation Dynamics

AbstractIn this work we study the influence of plasmon excitations on the excitation dynamics within a protein complex embedding two chlorophyll molecules coupled to a gold nanosphere. Small separation between the chlorophylls and metallic nanoparticle allows us to simplify the calculations of the Förster energy transfer rate and non-radiative processes by replacing a spherical nanoparticle with a metallic surface. Our results show modifications of all relevant processes and the energy transfer pathways within the system as well as the radiative processes. Plasmon induced changes result in strong qualitative effects of the fluorescence of the studied light-harvesting complex.

Femtosecond excitation dynamics in gold nanospheres and nanorods

2005 ◽  
Vol 72 (23) ◽  
Author(s):  
O. P. Varnavski ◽  
T. Goodson ◽  
M. B. Mohamed ◽  
M. A. El-Sayed
Keyword(s):  
Gold Nanospheres ◽  
Excitation Dynamics

scholarly journals Excitation dynamics and relaxation in a molecular heterodimer

2012 ◽  
Vol 404 ◽  
pp. 94-102 ◽  
Author(s):  
V. Balevičius ◽  
A. Gelzinis ◽  
D. Abramavicius ◽  
T. Mančal ◽  
L. Valkunas
Keyword(s):  
Excitation Dynamics

Excitation dynamics in α-sexithiophene single crystals and UHV-grown films

1998 ◽  
Vol 76-77 ◽  
pp. 416-419 ◽  
Author(s):  
M. Hopmeier ◽  
R.N. Marks ◽  
R. Michel ◽  
M. Muccini ◽  
M. Murgia ◽  
...  
Keyword(s):  
Single Crystals ◽  
Excitation Dynamics

scholarly journals Excitation Dynamics of Light Harvesting Complex 2 B850 Ring

2010 ◽  
Vol 98 (3) ◽  
pp. 173a
Author(s):  
Johan Strumpfer ◽  
Klaus Schulten
Keyword(s):  
Light Harvesting ◽  
Light Harvesting Complex ◽  
Excitation Dynamics
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