All-optical switching of magnetoresistive devices using telecom-band femtosecond laser

2015 ◽  
Vol 107 (10) ◽  
pp. 102402 ◽  
Author(s):  
Li He ◽  
Jun-Yang Chen ◽  
Jian-Ping Wang ◽  
Mo Li
Keyword(s):  
Femtosecond Laser ◽  
Optical Switching ◽  
All Optical ◽  
All Optical Switching

scholarly journals Plasmonic layer-selective all-optical switching of magnetization with nanometer resolution

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
D. O. Ignatyeva ◽  
C. S. Davies ◽  
D. A. Sylgacheva ◽  
A. Tsukamoto ◽  
H. Yoshikawa ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Magnetic Recording ◽  
Optical Switching ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
All Optical ◽  
Polarization Axis ◽  
Linearly Polarized ◽  
All Optical Switching ◽  
Better Than

Abstract All-optical magnetization reversal with femtosecond laser pulses facilitates the fastest and least dissipative magnetic recording, but writing magnetic bits with spatial resolution better than the wavelength of light has so far been seen as a major challenge. Here, we demonstrate that a single femtosecond laser pulse of wavelength 800 nm can be used to toggle the magnetization exclusively within one of two 10-nm thick magnetic nanolayers, separated by just 80 nm, without affecting the other one. The choice of the addressed layer is enabled by the excitation of a plasmon-polariton at a targeted interface of the nanostructure, and realized merely by rotating the polarization-axis of the linearly-polarized ultrashort optical pulse by 90°. Our results unveil a robust tool that can be deployed to reliably switch magnetization in targeted nanolayers of heterostructures, and paves the way to increasing the storage density of opto-magnetic recording by a factor of at least 2.

scholarly journals Femtosecond-scale all-optical switching in oxyfluorogallate glass induced by nonlinear multiphoton absorption

RSC Advances ◽  
2021 ◽  
Vol 11 (51) ◽  
pp. 32446-32453
Author(s):  
Qisong Li ◽  
Xinqiang Yuan ◽  
Xiongwei Jiang ◽  
Jun Wang ◽  
Yi Liu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Response Time ◽  
Optical Switching ◽  
Multiphoton Absorption ◽  
Laser Pump ◽  
Pump And Probe ◽  
All Optical ◽  
All Optical Switching

Ultrafast all-optical switching based on oxyfluorogallate glass induced by nonlinear multiphoton absorption is reported and the ultrafast response time ∼350 fs is achieved by the femtosecond laser pump and probe technology.

scholarly journals Deterministic all-optical switching of synthetic ferrimagnets using single femtosecond laser pulses

2017 ◽  
Vol 96 (22) ◽  
Author(s):  
M. L. M. Lalieu ◽  
M. J. G. Peeters ◽  
S. R. R. Haenen ◽  
R. Lavrijsen ◽  
B. Koopmans
Keyword(s):  
Femtosecond Laser ◽  
Optical Switching ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
All Optical ◽  
All Optical Switching
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