Time-resolved imaging of magnetization dynamics in double nanocontact spin torque vortex oscillator devices

2019 ◽  
Vol 100 (13) ◽  
Author(s):  
Erick Burgos-Parra ◽  
Paul S. Keatley ◽  
Sohrab Sani ◽  
Phillip Durrenfeld ◽  
Johan Åkerman ◽  
...  
Keyword(s):  
Spin Torque ◽  
Magnetization Dynamics ◽  
Time Resolved ◽  
Time Resolved Imaging

Time resolved imaging of magnetization dynamics in hard disk writer yokes excited by bipolar current pulses

2014 ◽  
Vol 115 (17) ◽  
pp. 17B727 ◽  
Author(s):  
W. Yu ◽  
P. S. Keatley ◽  
R. J. Hicken ◽  
M. A. Gubbins ◽  
P. J. Czoschke ◽  
...  
Keyword(s):  
Hard Disk ◽  
Magnetization Dynamics ◽  
Time Resolved ◽  
Current Pulses ◽  
Time Resolved Imaging

scholarly journals Time-resolved imaging of three-dimensional nanoscale magnetization dynamics

2020 ◽  
Vol 15 (5) ◽  
pp. 356-360 ◽  
Author(s):  
Claire Donnelly ◽  
Simone Finizio ◽  
Sebastian Gliga ◽  
Mirko Holler ◽  
Aleš Hrabec ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Magnetization Dynamics ◽  
Time Resolved ◽  
Time Resolved Imaging

scholarly journals Time-resolved imaging of Œrsted field induced magnetization dynamics in cylindrical magnetic nanowires

2021 ◽  
Vol 118 (17) ◽  
pp. 172411
Author(s):  
M. Schöbitz ◽  
S. Finizio ◽  
A. De Riz ◽  
J. Hurst ◽  
C. Thirion ◽  
...  
Keyword(s):  
Magnetic Nanowires ◽  
Magnetization Dynamics ◽  
Time Resolved ◽  
Time Resolved Imaging

scholarly journals Giant enhancement of THz-frequency optical nonlinearity by phonon polariton in ionic crystals

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yao Lu ◽  
Qi Zhang ◽  
Qiang Wu ◽  
Zhigang Chen ◽  
Xueming Liu ◽  
...  
Keyword(s):  
Near Infrared ◽  
Optical Nonlinearity ◽  
Ionic Crystals ◽  
Nonlinear Optical Susceptibility ◽  
Time Resolved ◽  
Light Coupling ◽  
Tremendous Progress ◽  
Fundamental Research ◽  
Ionic Contribution ◽  
Time Resolved Imaging

AbstractThe field of nonlinear optics has grown substantially in past decades, leading to tremendous progress in fundamental research and revolutionized applications. Traditionally, the optical nonlinearity for a light wave at frequencies beyond near-infrared is observed with very high peak intensity, as in most materials only the electronic nonlinearity dominates while ionic contribution is negligible. However, it was shown that the ionic contribution to nonlinearity can be much larger than the electronic one in microwave experiments. In the terahertz (THz) regime, phonon polariton may assist to substantially trigger the ionic nonlinearity of the crystals, so as to enhance even more the nonlinear optical susceptibility. Here, we experimentally demonstrate a giant second-order optical nonlinearity at THz frequency, orders of magnitude higher than that in the visible and microwave regimes. Different from previous work, the phonon-light coupling is achieved under a phase-matching setting, and the dynamic process of nonlinear THz generation is directly observed in a thin-film waveguide using a time-resolved imaging technique. Furthermore, a nonlinear modification to the Huang equations is proposed to explain the observed nonlinearity enhancement. This work brings about an effective approach to achieve high nonlinearity in ionic crystals, promising for applications in THz nonlinear technologies.

scholarly journals Time-resolved imaging refractometry of microbicidal films using quantitative phase microscopy

2011 ◽  
Vol 16 (12) ◽  
pp. 120510 ◽  
Author(s):  
Matthew T. Rinehart ◽  
Tyler K. Drake ◽  
Francisco E. Robles ◽  
Lisa C. Rohan ◽  
David Katz ◽  
...  
Keyword(s):  
Time Resolved ◽  
Quantitative Phase ◽  
Phase Microscopy ◽  
Quantitative Phase Microscopy ◽  
Time Resolved Imaging

scholarly journals Time-Resolved Imaging of Electrochemical Switching in Nanoscale Resistive Memory Elements

2015 ◽  
Vol 21 (S3) ◽  
pp. 1911-1912
Author(s):  
William A. Hubbard ◽  
E. R. White ◽  
Alexander Kerelsky ◽  
G. Jasmin ◽  
Jared J. Lodico ◽  
...  
Keyword(s):  
Resistive Memory ◽  
Time Resolved ◽  
Time Resolved Imaging

SNR Improvement of Envelope Demodulation Using Two Temporal Magnetization Dynamics From Dual-Spin-Torque Oscillator

2018 ◽  
Vol 54 (11) ◽  
pp. 1-4 ◽  
Author(s):  
Y. Nakamura ◽  
M. Nishikawa ◽  
H. Osawa ◽  
Y. Okamoto ◽  
T. Kanao ◽  
...  
Keyword(s):  
Spin Torque ◽  
Magnetization Dynamics ◽  
Snr Improvement
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