Time-domain information from frequency- or time-resolved experiments using maximum entropy

1993 ◽  
Vol 97 (48) ◽  
pp. 12553-12560 ◽  
Author(s):  
F. Remacle ◽  
R. D. Levine
Keyword(s):  
Maximum Entropy ◽  
Time Domain ◽  
Time Resolved ◽  
Domain Information

scholarly journals A time-domain phase diagram of metastable states in a charge ordered quantum material

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jan Ravnik ◽  
Michele Diego ◽  
Yaroslav Gerasimenko ◽  
Yevhenii Vaskivskyi ◽  
Igor Vaskivskyi ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Time Domain ◽  
Metastable States ◽  
Scanning Tunneling ◽  
Photon Density ◽  
Tunneling Microscopy ◽  
Equilibrium Conditions ◽  
Time Resolved ◽  
A Charge ◽  
Non Equilibrium

AbstractMetastable self-organized electronic states in quantum materials are of fundamental importance, displaying emergent dynamical properties that may be used in new generations of sensors and memory devices. Such states are typically formed through phase transitions under non-equilibrium conditions and the final state is reached through processes that span a large range of timescales. Conventionally, phase diagrams of materials are thought of as static, without temporal evolution. However, many functional properties of materials arise as a result of complex temporal changes in the material occurring on different timescales. Hitherto, such properties were not considered within the context of a temporally-evolving phase diagram, even though, under non-equilibrium conditions, different phases typically evolve on different timescales. Here, by using time-resolved optical techniques and femtosecond-pulse-excited scanning tunneling microscopy (STM), we track the evolution of the metastable states in a material that has been of wide recent interest, the quasi-two-dimensional dichalcogenide 1T-TaS2. We map out its temporal phase diagram using the photon density and temperature as control parameters on timescales ranging from 10−12 to 103 s. The introduction of a time-domain axis in the phase diagram enables us to follow the evolution of metastable emergent states created by different phase transition mechanisms on different timescales, thus enabling comparison with theoretical predictions of the phase diagram, and opening the way to understanding of the complex ordering processes in metastable materials.

Time-resolved single-shot terahertz time-domain spectroscopy for ultrafast irreversible processes

2016 ◽  
Vol 87 (9) ◽  
pp. 095101 ◽  
Author(s):  
Zhao-Hui Zhai ◽  
Sen-Cheng Zhong ◽  
Jun Li ◽  
Li-Guo Zhu ◽  
Kun Meng ◽  
...  
Keyword(s):  
Time Domain ◽  
Irreversible Processes ◽  
Single Shot ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Resolved ◽  
Time Domain Spectroscopy

scholarly journals Determination of the time origin by 
the maximum entropy method in 
time-domain terahertz emission spectroscopy

2010 ◽  
Vol 18 (15) ◽  
pp. 15853 ◽  
Author(s):  
Takeya Unuma ◽  
Yusuke Ino ◽  
Makoto Kuwata-Gonokami ◽  
Erik M. Vartiainen ◽  
Kai-Erik Peiponen ◽  
...  
Keyword(s):  
Maximum Entropy ◽  
Time Domain ◽  
Emission Spectroscopy ◽  
Maximum Entropy Method ◽  
Entropy Method ◽  
Terahertz Emission ◽  
Terahertz Emission Spectroscopy ◽  
Time Origin

scholarly journals Time-resolved terahertz time-domain near-field microscopy

2018 ◽  
Vol 26 (24) ◽  
pp. 32118 ◽  
Author(s):  
N. J. J. van Hoof ◽  
S. E. T. ter Huurne ◽  
J. Gómez Rivas ◽  
A. Halpin
Keyword(s):  
Time Domain ◽  
Near Field ◽  
Time Resolved

scholarly journals Time-resolved optically stimulated luminescence of quartz in the nanosecond time domain

2019 ◽  
Vol 213 ◽  
pp. 376-387
Author(s):  
Christoph Schmidt ◽  
Oliver Simmank ◽  
Sebastian Kreutzer
Keyword(s):  
Time Domain ◽  
Optically Stimulated Luminescence ◽  
Time Resolved
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