Extremely fast ambipolar diffusion in n-i-p-i doping superlattices investigated by an all-optical pump-and-probe technique

1999 ◽  
Vol 25 (1-2) ◽  
pp. 21-27 ◽  
Author(s):  
D. Streb ◽  
M. Vitzethum ◽  
P. Kiesel ◽  
G.H. Döhler ◽  
M. Kneissl
Keyword(s):  
Ambipolar Diffusion ◽  
Optical Pump ◽  
Probe Technique ◽  
Pump And Probe ◽  
All Optical

Probing nonlinear magnetization dynamics in Fe/MgO(001) film by all optical pump-probe technique

2014 ◽  
Vol 104 (14) ◽  
pp. 142405 ◽  
Author(s):  
Wei He ◽  
Bo Hu ◽  
Qing-Feng Zhan ◽  
Xiang-Qun Zhang ◽  
Zhao-Hua Cheng
Keyword(s):  
Magnetization Dynamics ◽  
Optical Pump ◽  
Pump Probe ◽  
Probe Technique ◽  
All Optical ◽  
Nonlinear Magnetization

ON LASER-INDUCED MAGNETORESISTANCE EFFECT IN MAGNETIC JUNCTIONS

2012 ◽  
Vol 26 (31) ◽  
pp. 1250177 ◽  
Author(s):  
M. M. KRUPA ◽  
A. M. KOROSTIL
Keyword(s):  
Magnetic Field ◽  
Exchange Interaction ◽  
High Speed ◽  
Faraday Effect ◽  
Tunneling Magnetoresistance ◽  
Magnetoresistance Effect ◽  
Optical Pump ◽  
Pump And Probe ◽  
Spin Polarized ◽  
All Optical

We have studied the laser-induced high-speed remagnetization and tunneling magnetoresistance (TMR) effects in tunnel magnetic junctions (TMJ). Using magneto-optical investigations, all-optical pump and probe technique, we have studied mechanisms of the laser-induced remagnetization and shown feasibility of the high-speed laser-controlled remagnetization and resistance switching in the TMJ. It is shown that the laser-induced remagnetization is caused by the internal effective magnetic fields of the inverse magneto-optical Faraday effect and the effective magnetic field of s–d-exchange interaction between the laser-induced spin-polarized current and a lattice magnetization together with a laser-induced thermal demagnetization.

scholarly journals All-optical pump-and-probe detection of two-time correlations in a Fermi gas

2010 ◽  
Vol 81 (4) ◽  
Author(s):  
T.-L. Dao ◽  
C. Kollath ◽  
I. Carusotto ◽  
M. Köhl
Keyword(s):  
Fermi Gas ◽  
Optical Pump ◽  
Probe Detection ◽  
Pump And Probe ◽  
Time Correlations ◽  
All Optical

Gilbert damping in perpendicularly magnetized Pt/Co/Pt films investigated by all-optical pump-probe technique

2010 ◽  
Vol 96 (15) ◽  
pp. 152502 ◽  
Author(s):  
S. Mizukami ◽  
E. P. Sajitha ◽  
D. Watanabe ◽  
F. Wu ◽  
T. Miyazaki ◽  
...  
Keyword(s):  
Optical Pump ◽  
Gilbert Damping ◽  
Pump Probe ◽  
Probe Technique ◽  
All Optical ◽  
Pt Films

Thermal-conductivity measurements of GaAs/AlAs superlattices using a picosecond optical pump-and-probe technique

1999 ◽  
Vol 59 (12) ◽  
pp. 8105-8113 ◽  
Author(s):  
W. S. Capinski ◽  
H. J. Maris ◽  
T. Ruf ◽  
M. Cardona ◽  
K. Ploog ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Conductivity Measurements ◽  
Optical Pump ◽  
Probe Technique ◽  
Pump And Probe

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.

Picosecond coherence coupling in the pump and probe technique

1981 ◽  
Vol 39 (6) ◽  
pp. 396-400 ◽  
Author(s):  
Z. Vardeny ◽  
J. Tauc
Keyword(s):  
Probe Technique ◽  
Pump And Probe
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