scholarly journals Fano resonances in the corrugated disk resonator and their applications

2020 ◽  
Vol 13 (4) ◽  
pp. 119-134
Author(s):  
Lin Chen ◽  
Bo Liu ◽  
Yiming Zhu
Keyword(s):  
Fano Resonance ◽  
Hybrid Structure ◽  
Plasmonic Waveguide ◽  
Metal Particles ◽  
Fano Resonances ◽  
Disk Resonator ◽  
Resonance Modes ◽  
Shed Light ◽  
The Way

We have experimentally excited terahertz multipolar Fano resonances in two asymmetrical metal particles: a defective corrugated metallic disk(CMD) structure and a hybrid structure consisted of a C-shaped resonator and a CMD. Furthermore, the Fano resonance modes can also be excited by the interaction between plasmonic waveguide and CMD. Our findings have shed light into the terahertz multipolar Fano resonances in asymmetrical CMD and opened the way to the design of terahertz plasmonic devices.

scholarly journals Self-Referenced Refractive Index Biosensing with Graphene Fano Resonance Modes

Biosensors ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 400
Author(s):  
Xiaoyu Dai ◽  
Banxian Ruan ◽  
Yuanjiang Xiang
Keyword(s):  
Refractive Index ◽  
Fano Resonance ◽  
Graphene Nanoribbons ◽  
Theoretical Calculations ◽  
Wave Theory ◽  
Hybrid Structure ◽  
Monolayer Graphene ◽  
Resonance Modes ◽  
Potential Applications ◽  
Rigorous Coupled Wave

A hybrid structure composed of periodic monolayer graphene nanoribbons and a dielectric multilayer structure was designed to generate a Fano resonance (FR). The strong interaction between the surface plasmon resonance of graphene and the dielectric waveguide mode results in the FR. The finite element method is utilized to investigate the behaviors of the FR, and it matches well with the theoretical calculations using rigorous coupled wave theory. The results demonstrate that the profile of the FR can be passively tuned by the period of the graphene nanoribbons and actively tuned by the Fermi level of the graphene. The decoupled nature of the FR gives it potential applications as a self-calibrated refractive index biosensor, and the sensitivity can reach as high as 4.615 μm/RIU. Thus, this work provides a new idea for an excellent self-referencing refractive index biosensor.

Géographie et cartographie fictionnelles dans l’Utopie (1516) de Thomas More

Moreana ◽  
2010 ◽  
Vol 47 (Number 181- (3-4) ◽  
pp. 9-68
Author(s):  
Jean Du Verger
Keyword(s):  
Complex Network ◽  
Narrative Strategies ◽  
Thomas More ◽  
The Third ◽  
Editio Princeps ◽  
Shed Light ◽  
The Way

The philosophical and political aspects of Utopia have often shadowed the geographical and cartographical dimension of More’s work. Thus, I will try to shed light on this aspect of the book in order to lay emphasis on the links fostered between knowledge and space during the Renaissance. I shall try to show how More’s opusculum aureum, which is fraught with cartographical references, reifies what Germain Marc’hadour terms a “fictional archipelago” (“The Catalan World Atlas” (c. 1375) by Abraham Cresques ; Zuane Pizzigano’s portolano chart (1423); Martin Benhaim’s globe (1492); Martin Waldseemüller’s Cosmographiae Introductio (1507); Claudius Ptolemy’s Geographia (1513) ; Benedetto Bordone’s Isolario (1528) ; Diogo Ribeiro’s world map (1529) ; the Grand Insulaire et Pilotage (c.1586) by André Thevet). I will, therefore, uncover the narrative strategies used by Thomas More in a text which lies on a complex network of geographical and cartographical references. Finally, I will examine the way in which the frontispiece of the editio princeps of 1516, as well as the frontispiece of the third edition published by Froben at Basle in 1518, clearly highlight the geographical and cartographical aspect of More’s narrative.

scholarly journals Becoming a Crorepati: From Glocal TV Game to Grobal Fiction

2020 ◽  
Vol 73 (3) ◽  
pp. 497-520
Author(s):  
Nicola Pozza
Keyword(s):  
Effective Means ◽  
The Novel ◽  
Cultural Products ◽  
Slumdog Millionaire ◽  
Interactive Nature ◽  
Tv Show ◽  
Shed Light ◽  
The Way

AbstractNumerous studies have dealt with the process of globalization and its various cultural products. Three such cultural products illustrate this process: Vikas Swarup’s novel Q and A (2005), the TV quiz show Kaun banega crorepati? (Who Wants to Be a Millionaire?), and Danny Boyle’s film Slumdog Millionaire (2008). The novel, the TV show and the film have so far been studied separately. Juxtaposing and comparing Q and A, Kaun banega crorepati, and Slumdog Millionaire provides an effective means to shed light on the dialogic and interactive nature of the process of globalization. It is argued through this case study that an analysis of their place of production, language and content, helps clarify the derivative concepts of “glocalization” and “grobalization” with regard to the way(s) contemporary cultural products respond to globalization.

scholarly journals Software Testing: Issues and Challenges of Artificial Intelligence & Machine Learning

2021 ◽  
Vol 12 (1) ◽  
pp. 101-112
Author(s):  
Kishore Sugali ◽  
Chris Sprunger ◽  
Venkata N Inukollu
Keyword(s):  
Artificial Intelligence ◽  
Machine Learning ◽  
Software Testing ◽  
Future Research ◽  
Critical Component ◽  
Development Methodology ◽  
Testing Strategies ◽  
History Of ◽  
Shed Light ◽  
The Way

The history of Artificial Intelligence and Machine Learning dates back to 1950’s. In recent years, there has been an increase in popularity for applications that implement AI and ML technology. As with traditional development, software testing is a critical component of an efficient AI/ML application. However, the approach to development methodology used in AI/ML varies significantly from traditional development. Owing to these variations, numerous software testing challenges occur. This paper aims to recognize and to explain some of the biggest challenges that software testers face in dealing with AI/ML applications. For future research, this study has key implications. Each of the challenges outlined in this paper is ideal for further investigation and has great potential to shed light on the way to more productive software testing strategies and methodologies that can be applied to AI/ML applications.

scholarly journals Enhancing the sensitivity of a standard plasmonic MIM square ring resonator by incorporating the Nano-dots in the cavity

2020 ◽  
Vol 12 (1) ◽  
pp. 1 ◽  
Author(s):  
Muhammad Ali ALI Butt ◽  
Nikolay Kazanskiy
Keyword(s):  
Refractive Index ◽  
Fano Resonance ◽  
Ring Resonator ◽  
Plasmonic Waveguide ◽  
Metal Insulator ◽  
Refractive Index Sensing ◽  
Sensing Applications ◽  
Resonator Design ◽  
Metal Insulator Metal ◽  
Mim Waveguide

We studied the metal-insulator-metal square ring resonator design incorporated with nano-dots that serve to squeeze the surface plasmon wave in the cavity of the ring. The E-field enhances at the boundaries of the nano-dots providing a strong interaction of light with the surrounding medium. As a result, the sensitivity of the resonator is highly enhanced compared to the standard ring resonator design. The best sensitivity of 907 nm/RIU is obtained by placing seven nano-dots of radius 4 nm in all four sides of the ring with a period (ᴧ)= 3r. The proposed design will find applications in biomedical science as highly refractive index sensors. Full Text: PDF References:Z. Han, S. I. Bozhevolnyi. "Radiation guiding with surface plasmon polaritons", Rep. Prog. Phys. 76, 016402 (2013). [CrossRef]N.L. Kazanskiy, S.N. Khonina, M.A. Butt. "Plasmonic sensors based on Metal-insulator-metal waveguides for refractive index sensing applications: A brief review", Physica E 117, 113798 (2020). [CrossRef]D.K. Gramotnev, S.I. Bozhevolnyi. "Plasmonics beyond the diffraction limit", Nat. Photonics 4, 83 (2010). [CrossRef]A.N.Taheri, H. Kaatuzian. "Design and simulation of a nanoscale electro-plasmonic 1 × 2 switch based on asymmetric metal–insulator–metal stub filters", Applied Optics 53, 28 (2014). [CrossRef]P. Neutens, L. Lagae, G. Borghs, P. V. Dorpe. "Plasmon filters and resonators in metal-insulator-metal waveguides", Optics Express 20, 4 (2012). [CrossRef]M.A. Butt, S.N. Khonina, N. L. Kazanskiy. "Metal-insulator-metal nano square ring resonator for gas sensing applications", Waves in Random and complex media [CrossRef]M.A.Butt, S.N.Khonina, N.L.Kazanskiy. "Hybrid plasmonic waveguide-assisted Metal–Insulator–Metal ring resonator for refractive index sensing", Journal of Modern Optics 65, 1135 (2018). [CrossRef]M.A.Butt, S.N. Khonina, N.L. Kazanskiy, "Highly sensitive refractive index sensor based on hybrid plasmonic waveguide microring resonator", Waves in Random and complex media [CrossRef]Y. Fang, M. Sun. "Nanoplasmonic waveguides: towards applications in integrated nanophotonic circuits", Light:Science & Applications 4, e294 (2015). [CrossRef]H. Lu, G.X. Wang, X.M. Liu. "Manipulation of light in MIM plasmonic waveguide systems", Chin Sci Bull [CrossRef]J.N. Anker et al. "Biosensing with plasmonic nanosensors", Nature Materials 7, 442 (2008). [CrossRef]M.A.Butt, S.N. Khonina, N.L. Kazanskiy. Journal of Modern Optics 66, 1038 (2019).[CrossRef]Z.-D. Zhang, H.-Y. Wang, Z.-Y. Zhang. "Fano Resonance in a Gear-Shaped Nanocavity of the Metal–Insulator–Metal Waveguide", Plasmonics 8,797 (2013) [CrossRef]Y. Yu, J. Si, Y. Ning, M. Sun, X. Deng. Opt. Lett. 42, 187 (2017) [CrossRef]B.H.Zhang, L-L. Wang, H-J. Li et al. "Two kinds of double Fano resonances induced by an asymmetric MIM waveguide structure", J. Opt. 18,065001 (2016) [CrossRef]X. Zhao, Z. Zhang, S. Yan. "Tunable Fano Resonance in Asymmetric MIM Waveguide Structure", Sensors 17, 1494 (2017) [CrossRef]J. Zhou et al. "Transmission and refractive index sensing based on Fano resonance in MIM waveguide-coupled trapezoid cavity", AIP Advances 7, 015020 (2017) [CrossRef]V. Perumal, U. Hashim. "Advances in biosensors: Principle, architecture and applications", J. Appl. Biomed. 12, 1 (2014)[CrossRef]H.Gai, J. Wang , Q. Tian, "Modified Debye model parameters of metals applicable for broadband calculations", Appl. Opt. 46 (12), 2229 (2007) [CrossRef]

scholarly journals The Special Apparatus (al-Niẓām al-Khāṣṣ): The Rise of Nationalist Militancy in the Ranks of the Egyptian Muslim Brotherhood

Religions ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 77
Author(s):  
Ahmed Abou El Zalaf
Keyword(s):  
Political Violence ◽  
Systematic Study ◽  
Muslim Brotherhood ◽  
British Colonization ◽  
Special Apparatus ◽  
Depth Study ◽  
History Of ◽  
Shed Light ◽  
The Way

Existing scholarship has largely focused on the role of Sayyid Qutb’s ideas when analyzing the Muslim Brotherhood’s violent history. Perceiving Qutb’s ideas as paving the way for radical interpretations of jihad, many studies linked the Brotherhood’s violent history with this key ideologue. Yet, in so doing, many studies overlooked the importance of the Special Apparatus in shaping this violent history of the Brotherhood, long before Qutb joined the organization. Through an in-depth study of memoires and accounts penned by Brotherhood members and leaders, and a systematic study of British and American intelligence sources, I attempt to shed light on this understudied formation of the Brotherhood, the Special Apparatus. This paper looks at the development of anti-colonial militancy in Egypt, particularly the part played by the Brotherhood until 1954. It contends that political violence, in the context of British colonization, antedated the Brotherhood’s foundation, and was in some instances considered as a legitimate and even distinguished duty among anti-colonial factions. The application of violence was on no account a part of the Brotherhood’s core strategy, but the organization, nevertheless, established an armed and secret wing tasked with the fulfillment of what a segment of its members perceived as the duty of anti-colonial jihad.

scholarly journals Ruin philosophy, poetic discourse and the collapse of meta-narratives in Aleksandr Kushner's poetry of the 1970s

Nordlit ◽  
2017 ◽  
Author(s):  
Andreas Schönle
Keyword(s):  
The Self ◽  
Close Reading ◽  
Poetic Discourse ◽  
Philosophical Background ◽  
The Face ◽  
Creative Forces ◽  
Bear Witness ◽  
Shed Light ◽  
The Way

This article offers an analysis of the trope of ruin in the poetry of Aleksandr Kushner (born 1936), in particular through a close reading of two of his poems: “In a slippery graveyard, alone” and “Ruins”. The analysis of these poems is preceded by an overview of ruin philosophy from Burke and Diderot to Simmel and Benjamin, with particular emphasis on the way the trope of ruin contemplation stages a confrontation between the self and what transcends it (death, history, nature, etc.). This philosophical background serves as a heuristic tool to shed light on the poetry of Kushner. Through the trope of ruin, Kushner explores the legitimacy of poetic speech after the collapse of all meta-narratives. Kushner has no truck with Diderot's solipsism, nor with Hegel's bold narrative of progress, nor with Simmel's peaceful reconciliation with the creative forces of nature. Nor, really, does he intend to bear witness to history, the way Benjamin does in the faint anticipation of some miracle. Instead, Kushner posits the endurance of a community united not around a grand project, but around the idea of carrying on in the face of everything, muddling through despite the lack of hopes for a transformational future and making the most of fleeting moments of positivity that emerge out of the fundamental serendipity of history.

Browning's Knowledge of Music

PMLA ◽  
1947 ◽  
Vol 62 (4) ◽  
pp. 1095-1099
Author(s):  
Herbert Eveleth Greene
Keyword(s):  
Good Deal ◽  
Robert Browning ◽  
The Past ◽  
Casual Reader ◽  
First Time ◽  
Shed Light ◽  
The Way

That Robert Browning, the poet, possessed wide and multifarious learning is evident to a casual reader of his poems. The careful reader is impressed by the range and extent of his learning which includes much of what is called hole-in-the-corner knowledge, a familiarity with out-of-the-way topics and incidents that few readers possess. The scholarship of the past two decades has begun to give us a good deal of knowledge upon the nature of Browning's learning, and we are in a fair position now to estimate how much of the poet's knowledge was systematic and well-ordered, and how much of it was haphazard and based upon a following-up of this or that temporary interest. The letter which is the heart of this paper and which is published for the first time below will shed light upon this problem in an area in which Browning's training was probably most systematic.

Our Changing World

2022 ◽  
pp. 13-63
Keyword(s):  
Employee Engagement ◽  
Qualitative Interviews ◽  
Work Hours ◽  
The World ◽  
The Future ◽  
Family And Work ◽  
Shed Light ◽  
The Way ◽  
Changing World

COVID-19 has dramatically changed our world in terms of telework specifically and remote life in general. We are still learning new things about balancing family and work; trustworthiness, performance, and accountability issues; important changes and discoveries about the way the world goes to work; and discussions of the dynamic ways people communicate. This chapter examines reasons for resistance to telework to shed light on how COVID-19 has changed us. The discussion that follows centers on qualitative interviews concerning telework, an evaluation of employee engagement now and in the future, and ideas and actions that should prove helpful to organizations. Analyzing the interviews reveals several common threads: distractions, fatigue, accountability, communication, productivity, technology, coping, work hours, resources, and plan approaches.

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