scholarly journals A fast operation of nanometer-scale metallic memristors: highly transparent conductance channels in Ag2S devices

Nanoscale ◽  
2014 ◽  
Vol 6 (5) ◽  
pp. 2613-2617 ◽  
Author(s):  
Attila Geresdi ◽  
Miklós Csontos ◽  
Agnes Gubicza ◽  
András Halbritter ◽  
György Mihály
Keyword(s):  
High Speed ◽  
Andreev Reflection ◽  
Atomic Scale ◽  
Nanometer Scale ◽  
Reflection Spectroscopy

We demonstrate Ag2S memristive devices optimized for high speed operation. Andreev reflection spectroscopy reveals highly transparent, atomic scale conducting channels.

scholarly journals A Contrast Calibration Protocol for X-ray Speckle Visibility Spectroscopy

2021 ◽  
Vol 11 (21) ◽  
pp. 10041
Author(s):  
Yanwen Sun ◽  
Vincent Esposito ◽  
Philip Adam Hart ◽  
Conny Hansson ◽  
Haoyuan Li ◽  
...  
Keyword(s):  
High Speed ◽  
Coherent Scattering ◽  
Atomic Scale ◽  
Photon Statistics ◽  
Free Electron Lasers ◽  
Data Set ◽  
X Ray ◽  
Charge Cloud ◽  
Typical Experiment ◽  
Calibration Protocol

X-ray free electron lasers, with their ultrashort highly coherent pulses, opened up the opportunity of probing ultrafast nano- and atomic-scale dynamics in amorphous and disordered material systems via speckle visibility spectroscopy. However, the anticipated count rate in a typical experiment is usually low. Therefore, visibility needs to be extracted via photon statistics analysis, i.e., by estimating the probabilities of multiple photons per pixel events using pixelated detectors. Considering the realistic X-ray detector responses including charge cloud sharing between pixels, pixel readout noise, and gain non-uniformity, speckle visibility extraction relying on photon assignment algorithms are often computationally demanding and suffer from systematic errors. In this paper, we present a systematic study of the commonly-used algorithms by applying them to an experimental data set containing small-angle coherent scattering with visibility levels ranging from below 1% to ∼60%. We also propose a contrast calibration protocol and show that a computationally lightweight algorithm can be implemented for high-speed correlation evaluation.

Enhanced Air-Gap Control for High-Speed Plasmonic Lithography Using Solid Immersion Lens With Sharp-Ridge Nanoaperture

2011 ◽  
Author(s):  
Hyunwoo Hwang ◽  
Won-Sup Lee ◽  
No-Cheol Park ◽  
Hyunseok Yang ◽  
Young-Pil Park ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
High Throughput ◽  
High Speed ◽  
Low Cost ◽  
Near Field ◽  
Nanometer Scale ◽  
Field Region ◽  
High Speeds ◽  
Gap Control

Recently, plasmonic nanolithography is studied by many researchers (1, 2 and 3). This presented a low-cost and high-throughput approach to maskless nanolithography technique that uses a metallic sharp-ridge nanoaperture with a high strong nanometer-sized optical spot induced by surface plasmon resonance. However, these nanometer-scale spots generated by metallic nanoapertures are formed in only the near-field region, which makes it very difficult to pattern above the photoresist surface at high-speeds.

scholarly journals Nanometer-scale metallic grains connected with atomic-scale conductors

2003 ◽  
Vol 93 (6) ◽  
pp. 3501-3508 ◽  
Author(s):  
A. Anaya ◽  
A. L. Korotkov ◽  
M. Bowman ◽  
J. Waddell ◽  
D. Davidovic
Keyword(s):  
Atomic Scale ◽  
Nanometer Scale ◽  
Metallic Grains
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