Wrinkle formation analysis in extreme-ultraviolet pellicle

2017 ◽  
Author(s):  
Hae Nam Jeong ◽  
Guk-Jin Kim ◽  
Sung-Gyu Lee ◽  
Hye-Keun Oh
Keyword(s):  
Extreme Ultraviolet

Plasma-based sources of extreme ultraviolet radiation for lithography and mask inspection

2018 ◽  
Vol 189 (03) ◽  
pp. 323-334 ◽  
Author(s):  
D.B. Abramenko ◽  
P.S. Antsiferov ◽  
D.I. Astakhov ◽  
Aleksandr Yu. Vinokhodov ◽  
Il'ya Yu. Vichev ◽  
...  
Keyword(s):  
Ultraviolet Radiation ◽  
Extreme Ultraviolet ◽  
Mask Inspection ◽  
Extreme Ultraviolet Radiation

Equipment for Subpicosecond Extreme Ultraviolet Facility.

1986 ◽  
Author(s):  
Charles K. Rhodes ◽  
Keith Boyer ◽  
Tsing Shan Luk
Keyword(s):  
Extreme Ultraviolet

Research Studies on Extreme Ultraviolet and Soft X-Ray Lasers

1990 ◽  
Author(s):  
S. E. Harris ◽  
J. F. Young
Keyword(s):  
Extreme Ultraviolet ◽  
X Ray ◽  
Research Studies

Surface potential of liquid microjet investigated using extreme ultraviolet photoelectron spectroscopy

2020 ◽  
Vol 152 (14) ◽  
pp. 144503
Author(s):  
Junichi Nishitani ◽  
Shutaro Karashima ◽  
Christopher W. West ◽  
Toshinori Suzuki
Keyword(s):  
Surface Potential ◽  
Photoelectron Spectroscopy ◽  
Extreme Ultraviolet ◽  
Ultraviolet Photoelectron Spectroscopy

scholarly journals Energetics of magnetic transients in a solar active region plage

2019 ◽  
Vol 623 ◽  
pp. A176 ◽  
Author(s):  
L. P. Chitta ◽  
A. R. C. Sukarmadji ◽  
L. Rouppe van der Voort ◽  
H. Peter
Keyword(s):  
Magnetic Field ◽  
Active Region ◽  
Magnetic Flux ◽  
Numerical Simulations ◽  
Extreme Ultraviolet ◽  
Spatial Scales ◽  
Coronal Loops ◽  
The Sun ◽  
Flux Emergence ◽  
Transient Events

Context. Densely packed coronal loops are rooted in photospheric plages in the vicinity of active regions on the Sun. The photospheric magnetic features underlying these plage areas are patches of mostly unidirectional magnetic field extending several arcsec on the solar surface. Aims. We aim to explore the transient nature of the magnetic field, its mixed-polarity characteristics, and the associated energetics in the active region plage using high spatial resolution observations and numerical simulations. Methods. We used photospheric Fe I 6173 Å spectropolarimetric observations of a decaying active region obtained from the Swedish 1-m Solar Telescope (SST). These data were inverted to retrieve the photospheric magnetic field underlying the plage as identified in the extreme-ultraviolet emission maps obtained from the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). To obtain better insight into the evolution of extended unidirectional magnetic field patches on the Sun, we performed 3D radiation magnetohydrodynamic simulations of magnetoconvection using the MURaM code. Results. The observations show transient magnetic flux emergence and cancellation events within the extended predominantly unipolar patch on timescales of a few 100 s and on spatial scales comparable to granules. These transient events occur at the footpoints of active region plage loops. In one case the coronal response at the footpoints of these loops is clearly associated with the underlying transient. The numerical simulations also reveal similar magnetic flux emergence and cancellation events that extend to even smaller spatial and temporal scales. Individual simulated transient events transfer an energy flux in excess of 1 MW m−2 through the photosphere. Conclusions. We suggest that the magnetic transients could play an important role in the energetics of active region plage. Both in observations and simulations, the opposite-polarity magnetic field brought up by transient flux emergence cancels with the surrounding plage field. Magnetic reconnection associated with such transient events likely conduits magnetic energy to power the overlying chromosphere and coronal loops.

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