The Role of Electron Wave Modes in Optical Devices

Author(s):  
Y. Arakawa
2021 ◽  
pp. 85-119
Author(s):  
Hannu E. J. Koskinen ◽  
Emilia K. J. Kilpua

AbstractUnderstanding the role of plasma waves, extending from magnetohydrodynamic (MHD) waves at ultra-low-frequency (ULF) oscillations in the millihertz range to very-low-frequency (VLF) whistler-mode emissions at frequencies of a few kHz, is necessary in studies of sources and losses of radiation belt particles. In order to make this theoretically heavy part of the book accessible to a reader, who is not familiar with wave–particle interactions, we have divided the treatise into three chapters. In the present chapter we introduce the most important wave modes that are critical to the dynamics of radiation belts. The drivers of these waves are discussed in Chap. 10.1007/978-3-030-82167-8_5 and the roles of the wave modes as sources and losses of radiation belt particles are dealt with in Chap. 10.1007/978-3-030-82167-8_6.


1962 ◽  
Vol 36 (3) ◽  
pp. 702-705 ◽  
Author(s):  
L. G. Van Uitert ◽  
R. C. Linares ◽  
R. R. Soden ◽  
A. A. Ballman

2019 ◽  
Vol 205 ◽  
pp. 02003
Author(s):  
Davide Faccialà ◽  
Stefan Pabst ◽  
Barry D. Bruner ◽  
Anna G. Ciriolo ◽  
Michele Devetta ◽  
...  

We exploit high-order harmonic generation spectroscopy at the caustics of the recombining electron wave-packet as a method for directly comparing experimental spectra with ab-initio theories. Experimental results in xenon and comparison with ab-initio time-dependent configuration-interaction singles calculations allowed to assess the role of the wave-packet enhancement during the giant resonance. Results in argon show that this technique can also be applied to other targets.


Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2165
Author(s):  
Hikari Kitadai ◽  
Meng Yuan ◽  
Yongqiang Ma ◽  
Xi Ling

In this review paper, we summarized the recent progress of using graphene as a sensing platform for environmental applications. Especially, we highlight the electrical and optical sensing devices developed based on graphene and its derivatives. We discussed the role of graphene in these devices, the sensing mechanisms, and the advantages and disadvantages of specific devices. The approaches to improve the sensitivity and selectivity are also discussed.


2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
T. Sahu ◽  
B. Ghosh ◽  
S. K. Pradhan ◽  
T. Ganguly

Silicon carbide (SiC) is a promising material due to its unique property to adopt different crystalline polytypes which monitor the band gap and the electronic and optical properties. Despite being an indirect band gap semiconductor, SiC is used in several high-performance electronic and optical devices. SiC has been long recognized as one of the best biocompatible materials, especially in cardiovascular and blood-contacting implants and biomedical devices. In this paper, diverse role of SiC in its nanostructured form has been discussed. It is felt that further experimental and theoretical work would help to better understanding of the various properties of these nanostructures in order to realize their full potentials.


Author(s):  
Ana Peraica

(an excerpt from the upcoming book Postdigital Arcadia) Selfie photography serves not only a traditional role of photographic (self)recording, but also for manoeuvring the space behind one’s own back. Unfortunately, as two realities, the unmediated and mediated, human and machine vision, are not matching, there are many accidents of selfie-makers due to the crabwalk. By this, the photographic technology based on the rear-view mirror – in which objects (may) appear closer than they are – finally resolves one of the largest tragedies of human self-perception; the inability to see and control the world behind one’s back. Keywords: background, mobile photography, optical devices, photography, selfie


MRS Bulletin ◽  
1987 ◽  
Vol 12 (7) ◽  
pp. 80-83
Author(s):  
A.F. Jankowski

The magic of multilayer structures — comprised of a regular repeating pattern of alternating layers that vary in thickness from less than 1 nm to more than several micrometers — is present today in nearly every facet of materials science.A technological gamut of issues has been approached through the use of multilayer structures. Material systems have been routinely investigated, ranging from simple binary through complex quaternary and including nearly every element of the periodic table. Applications include thin-film semiconductor devices in the form of strained-layer superlattices; protective coatings for improved surface hardness and wear resistance of conventional alloys (tribology); and reflective and transmissive x-ray optical devices. Multilayer structures have also provided an experimental means to investigate the interdiffusion and stability of alloy phases; the relationship between the presence, lack, or variations of crystallinity with magnetism (and most recently superconductivity); and the role of interfaces in adhesion and elastic/plastic behavior.


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