scholarly journals Depletion of intense fields

2017 ◽  
Author(s):  
S. S. Bulanov ◽  
D. Seipt ◽  
T. Heinzl ◽  
M. Marklund
Keyword(s):  
Intense Fields

Phase diagram of the random-field Ising system Fe0.60Zn0.40F2 at intense fields

1998 ◽  
Vol 177-181 ◽  
pp. 145-146 ◽  
Author(s):  
F.C. Montenegro ◽  
K.A. Lima ◽  
M.S. Torikachvili ◽  
A.H. Lacerda
Keyword(s):  
Phase Diagram ◽  
Random Field ◽  
Ising System ◽  
Intense Fields

How coherently do nuclei react to intense fields?

1991 ◽  
Vol 43 (3) ◽  
pp. R939-R941 ◽  
Author(s):  
F. S. Navarra ◽  
M. C. Nemes
Keyword(s):  
Intense Fields

scholarly journals Unusual Response of Thin LiTaO3 Films to Intense Microwave Pulses

Materials ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 3588
Author(s):  
Haojia Chen ◽  
Qiong Gao ◽  
Baoliang Qian ◽  
Lishan Zhao
Keyword(s):  
Nonlinear Behaviour ◽  
Small Signal ◽  
Large Signal ◽  
Signal Model ◽  
Small Signal Model ◽  
Wide Range ◽  
Microwave Pulses ◽  
Intense Fields ◽  
Voltage Signal ◽  
Wave Sensors

Fundamentally different responses of a LiTaO 3 thin film detector are observed when it is subjected to short microwave pulses as the pulse intensity is altered over a wide range. We start from weak microwave pulses which lead to only trivial pyroelectric peak response. However, when the microwave pulses become intense, the normally expected pyroelectric signal seems to be suppressed and the sign of the voltage signal can even be completely changed. Analysis indicates that while the traditional pyroelectric model, which is a linear model and works fine for our data in the small regime, it does not work anymore in the large signal regime. Since the small-signal model is the key foundation of electromagnetic-wave sensors based on pyroelectric effects, such as pyroelectric infrared detecters, the observation in this work suggests that one should be cautious when using these devices in intense fields. In addition, the evolution of detector signal with respect to excitation strength suggests that the main polarisation process is changed in the large signal regime. This is of fundamental importance to the understanding on how crystalline solids interact with intense microwaves. Possible causes of the nonlinear behaviour is discussed.

Multipole expansions and intense fields

1984 ◽  
Vol 29 (2) ◽  
pp. 698-703 ◽  
Author(s):  
Howard R. Reiss
Keyword(s):  
Intense Fields ◽  
Multipole Expansions
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