All-optical injection and control of spin and electrical currents in quantum wells

2003 ◽  
Vol 68 (16) ◽  
Author(s):  
Ali Najmaie ◽  
R. D. R. Bhat ◽  
J. E. Sipe
Keyword(s):  
Quantum Wells ◽  
Optical Injection ◽  
Electrical Currents ◽  
All Optical ◽  
And Control

All-optical injection of ballistic electrical currents in unbiased silicon

2008 ◽  
Vol 5 (1) ◽  
pp. 340-342
Author(s):  
M. Betz ◽  
L. Costa ◽  
M. Spasenovic ◽  
A. D. Bristow ◽  
H. M. van Driel
Keyword(s):  
Optical Injection ◽  
Electrical Currents ◽  
All Optical

scholarly journals All-optical injection of ballistic electrical currents in unbiased silicon

2007 ◽  
Vol 3 (9) ◽  
pp. 632-635 ◽  
Author(s):  
Louis Costa ◽  
Markus Betz ◽  
Marko Spasenović ◽  
Alan D. Bristow ◽  
Henry M. van Driel
Keyword(s):  
Optical Injection ◽  
Electrical Currents ◽  
All Optical

scholarly journals Experimental Issues in Testing a Semiactive Technique to Control Earthquake Induced Vibration

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Nicola Caterino ◽  
Mariacristina Spizzuoco ◽  
Julian M. Londoño ◽  
Antonio Occhiuzzi
Keyword(s):  
Large Scale ◽  
Experimental Testing ◽  
Practical Experience ◽  
Structural Testing ◽  
Frame Structure ◽  
Semiactive Control ◽  
Electrical Currents ◽  
Wide Range ◽  
And Control ◽  
Steel Frame Structure

This work focuses on the issues to deal with when approaching experimental testing of structures equipped with semiactive control (SA) systems. It starts from practical experience authors gained in a recent wide campaign on a large scale steel frame structure provided with a control system based on magnetorheological dampers. The latter are special devices able to achieve a wide range of physical behaviours using low-power electrical currents. Experimental activities involving the use of controllable devices require special attention in solving specific aspects that characterize each of the three phases of the SA control loop: acquisition, processing, and command. Most of them are uncommon to any other type of structural testing. This paper emphasizes the importance of the experimental assessment of SA systems and shows how many problematic issues likely to happen in real applications are also present when testing these systems experimentally. This paper highlights several problematic aspects and illustrates how they can be addressed in order to achieve a more realistic evaluation of the effectiveness of SA control solutions. Undesired and unavoidable effects like delays and control malfunction are also remarked. A discussion on the way to reduce their incidence is also offered.

Pulse Optimization and Control of Quantum Cascade Laser via an All-Optical Approach

2018 ◽  
Vol 30 (12) ◽  
pp. 1099-1102
Author(s):  
Chen Peng ◽  
Haijun Zhou ◽  
Liguo Zhu ◽  
Tao Chen ◽  
Lianghui Du ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Quantum Cascade ◽  
All Optical ◽  
Optimization And Control ◽  
And Control

1.55-μm picosecond all-optical switching by using intersubband absorption in InGaAs-AlAs-AlAsSb coupled quantum wells

2002 ◽  
Vol 14 (4) ◽  
pp. 495-497 ◽  
Author(s):  
T. Akiyama ◽  
N. Georgiev ◽  
T. Mozume ◽  
H. Yoshida ◽  
A.V. Gopal ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Optical Switching ◽  
Coupled Quantum Wells ◽  
Intersubband Absorption ◽  
All Optical ◽  
All Optical Switching
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